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Short answer: the clearest documented, currently listed Australian small-form-factor option is BYB Computers’ Sydney-built Mini-ITX system with a Ryzen 7 9800X3D, GeForce RTX 5070 Ti 16GB, 32GB DDR5, 2TB SSD and Fractal Terra Silver case. Its page showed AUD 4,499 on 13 October 2026, with Australia-wide delivery and a stated two-year warranty. Cataclysm Computers documents a capable custom-build process, three-year warranty and Australia-wide shipping, but does not publish a dedicated SFF range or an SFF quote. Evolve Gaming PC is a useful service lead for custom cabling and repairs, not a verified SFF system pick.
That is not enough evidence for a trustworthy national league table. Use the documented systems as starting points, then compare exact chassis fit, component models, thermals, testing, freight and written warranty terms before paying a deposit.
| # | Preview | Product | Price | |
|---|---|---|---|---|
| 1 |
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Cooler Master NR2 Pro Gaming PC 9800X3D + RTX 5070 Ti Mini ITX PC | $3,186.33 | Buy on Amazon |
| 2 |
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Cooler Master NR2 Pro Gaming PC 9800X3D + RTX 5080 Mini ITX PC | $4,609.49 | Buy on Amazon |
What the Australian SFF market actually supports
Small-form-factor (SFF) gaming PCs are compact desktops built around space-limited cases, most commonly Mini-ITX motherboards. The compact footprint is attractive for a living room, study or home office, but it makes component compatibility more consequential than it is in a large tower. A graphics card can be too long or too thick, a CPU cooler can exceed the side-panel clearance, and a power supply can leave no room for cable bends. A builder should therefore prove the fit rather than simply label a system “SFF.”
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The available Australian evidence supports one named, orderable-looking Mini-ITX configuration and one documented custom-build service. It does not establish a controlled ranking of every Australian specialist, a common benchmark, or a like-for-like value winner. Prices, stock, delivery estimates and warranty wording can change, so treat the figures below as dated snapshots and request written confirmation.
#1 Best Overall
- COMPACT ITX DESIGN: Unleash top-tier performance in a sleek 18.25L system, compact yet powerful for gamers, creators, and professionals—roughly the size of a large shoebox.
- PLAY ANY GAMES: 120+ FPS on High+ Settings on 1440p with GeForce RTX 5070 Ti 16GB | AMD RYZEN 7 9800X3D 4.7GHz (5.2GHz Turbo) 8-Core 16-Thread | Gigabyte B850I AORUS PRO Motherboard.
- MAXIMUM PERFORMANCE: NR200P Max Case | 280mm AIO| 850W 80+ Gold Efficiency Power Supply, unlocks your system to its full cooling & gaming potential.
- SUPERIOR MEMORY: 2TB Gen4 M.2 SSD offers next-gen storage with a Gen 4x4 NVMe controller, delivering high-speed performance for apps, photos, media, and games | 32GB (2x16GB) DDR5 6000MHz RGB RAM w/ heatsink delivering blazing speed, plus vibrant RGB lighting.
- SPECIAL FEATURES: Glass panel or Mesh panel | Type-C | USB 3.2 Gen 2 Type-C| 5x USB 3.2 | No Bloatware | WiFi | Bluetooth | 1x HDMI & 2x Display Port | USB Ports | HD Audio & Mic.
Documented options at a glance
| Builder or lead | What is documented | What is not established | How to use it |
|---|---|---|---|
| BYB Computers | AMD Mini-ITX PC built and tested in Sydney; Ryzen 7 9800X3D, RTX 5070 Ti 16GB, 32GB DDR5, 2TB SSD and Fractal Terra Silver chassis; Australia-wide delivery and two-year warranty stated on the product page. | Whether the listed stock, price, exact board, cooler, PSU, component brands and current warranty process remain unchanged. | Use as a concrete reference configuration and ask for the complete parts list and current terms. |
| Cataclysm Computers | Customer-assisted specification, hand-built in Melbourne, stress tested, free Australia-wide shipping, three-year warranty and paid courier freight both ways for approved warranty repairs. Usual starting point around AUD 2,000; average order-to-built time about five business days. | A dedicated SFF catalogue, a current Mini-ITX quote, or whether the starting price applies to a gaming build with a comparable GPU. | Request a bespoke Mini-ITX quote and written clearance, testing and warranty details. |
| Evolve Gaming PC | Australian-made custom sleeved cables and repair work including water cooling, GPU servicing, thermal pads and repasting are described. | A named, currently orderable SFF gaming system or evidence that it operates as a top-ranked SFF builder. | Consider it a supporting service lead when cable routing or repair capability matters. |
A secondary comparison article names several additional Australian retailers, but its superlatives, prices, product availability, review totals and detailed warranty claims were not independently verified against primary pages here. Do not treat that list as a settled “top picks” ranking.
BYB Computers: the clearest documented Mini-ITX reference build
BYB’s listed system is useful because it identifies the central parts instead of describing an anonymous “high-end compact PC.” The page names an AMD Ryzen 7 9800X3D processor, an Nvidia GeForce RTX 5070 Ti with 16GB of memory, 32GB of DDR5 RAM, a 2TB solid-state drive and a Fractal Terra Silver case. It says the machine is built and tested in Sydney, advertises Australia-wide delivery and states a two-year warranty.
The displayed price was AUD 4,499 on 13 October 2026. That is the observed price for this particular configuration on that date, not an Australian SFF market average, an enduring promotion or proof of superior value. Confirm the current total, stock status, shipping charge, exact component models and warranty text before ordering.
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“Ryzen 7 9800X3D,” “RTX 5070 Ti 16GB” and “2TB SSD” identify performance classes, but they do not fully establish physical fit or acoustics. Ask BYB to supply the motherboard model, graphics-card manufacturer and dimensions, CPU cooler model and height, power-supply model and form factor, SSD model, memory speed and the case’s installed fan layout. Different RTX 5070 Ti cards can have materially different lengths and thicknesses; the case must support the exact card, not merely the GPU family.
Also ask whether the quoted configuration uses any manufacturer-specific adapter, riser cable or custom bracket. In a compact case, those details affect airflow, service access and future upgrades. Request confirmation that the side panels close with every cable installed and that the intended orientation matches the builder’s thermal testing.
Questions to send before paying
- What are the exact motherboard, GPU, PSU, cooler, RAM kit and SSD model numbers?
- What are the GPU’s measured length, height and slot thickness, and what clearance remains in the Terra after power cables are fitted?
- Which CPU cooler and case fans are installed, and what temperatures and noise conditions were observed during testing?
- Is Windows included, activated and transferable, or is the system supplied without an operating-system licence?
- Does the two-year warranty cover parts, labour, return freight and damage caused by an installed upgrade?
- What is the current build queue, dispatch estimate and packaging method for Australia-wide delivery?
Cataclysm Computers: a custom quote rather than a verified SFF catalogue
Cataclysm describes a consultative process: it specifies a system with the customer, builds by hand in Melbourne, stress tests each build and ships Australia-wide for free. Its page states a three-year warranty. For approved warranty repairs, Cataclysm says it arranges and pays courier costs in both directions. Those are meaningful service terms for a compact computer, where shipping a complete system safely can be more complicated than shipping a component.
The same page gives a usual starting point of around AUD 2,000 and an average order-to-built time of about five business days. It also says lead times can range from one or two days to two or three weeks when busy. These figures are for its general custom-build service, not a guaranteed Mini-ITX delivery estimate or a confirmed SFF price. Ask specifically for a Mini-ITX chassis, GPU and cooler combination before comparing the quote with BYB’s AUD 4,499 system.
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How to make the Cataclysm quote comparable
- Specify the target case and maximum external footprint, not just “small.”
- Name the exact CPU and GPU class you want, then require the proposed card’s dimensions and the case clearance calculation.
- Request the motherboard, PSU, cooler, memory, storage and fan models in writing.
- Ask what “stress tested” means in practice: workloads used, duration, temperatures recorded and whether the result is retained with your build record.
- Obtain the total delivered price, current queue position and the conditions that could change the estimate.
- Read the three-year warranty for exclusions, upgrade-related damage, dead-on-arrival handling and the definition of an approved repair.
Evolve Gaming PC: when the service detail is the requirement
Evolve documents custom sleeved cables made in Australia and repair services covering water cooling, GPU servicing, thermal pads and repasting. Those capabilities can be relevant to a compact build because cable length and routing influence panel clearance, while repasting or pad replacement may matter during later maintenance.
The available page does not identify a named, currently orderable SFF gaming system, its dimensions or a comparable price. Treat Evolve as a service lead to contact for a specific cable or repair need, not as a verified national SFF “top pick.” Ask whether it will work on your exact case, power supply and graphics card before sending hardware.
The comparison framework that prevents bad SFF purchases
Use the same questions for every builder. A lower headline price can conceal a weaker GPU, a shorter warranty, paid return freight or a case that cannot accept the advertised card.
| Comparison axis | What to record | Why it matters in SFF |
|---|---|---|
| Chassis | Brand, model, external dimensions, volume, panel material and included fans. | Determines desk or cabinet fit, airflow path, noise behaviour and future component limits. |
| Graphics card | Exact manufacturer model, length, height, slot thickness, power connector and cooler design. | GPU dimensions are often the tightest constraint and can determine whether the side panel closes. |
| CPU cooling | CPU model, cooler model and height, fan orientation and any power limit applied. | Compact coolers have less thermal headroom; the same processor can behave differently in different cases. |
| Core platform | Motherboard model, RAM capacity and speed, SSD model and PSU model, wattage and form factor. | These affect expansion, cable routing, upgrade choices and electrical headroom. |
| Testing | Workloads, duration, temperatures, fan profiles and whether the builder records results. | “Tested” is not a universal protocol. You need to know what was actually checked. |
| Total cost | Component-equivalent price, shipping, configuration fees, operating-system licence and taxes. | Only a like-for-like delivered total supports a fair comparison. |
| Warranty | Length, covered parts and labour, exclusions, repair location, turnaround and freight responsibility. | Returning a complete compact PC can be costly; freight terms materially change ownership risk. |
| Support | Upgrade advice, replacement-part policy, contact channel and documentation supplied with the build. | A clear support path is valuable when a future GPU or cooler must fit unusual limits. |
Mini-ITX fit and thermal checks you should understand
Case volume is not the whole story
Two cases with similar external volume can have very different internal layouts. One may prioritise a long graphics card, another a taller CPU cooler, and another a larger power supply. Ask for the case’s published limits and the builder’s measured clearance after the chosen motherboard, radiator or air cooler, GPU and cables are installed.
GPU clearance includes the connector
Measure the graphics card itself and the bend required by its power lead. A card can technically fit by length while the connector presses against a side panel or creates a sharp cable bend. Require the builder to confirm the installed cable path, not just quote the card’s catalogue dimensions.
Cooling depends on the complete layout
CPU and GPU temperatures are linked in a small enclosure. Ask which component receives fresh intake air, where heated air exits, what fan curve is configured and whether the system is tested with the panels fitted. A result obtained on an open test bench does not describe the finished computer in a cabinet.
Power supply and upgrade headroom
Record the exact PSU model, wattage, efficiency certification and form factor. A compact power supply can free space but may require different cables. Ask how much headroom remains for transient GPU loads and whether a future card would require a PSU or cable change.
What “tested” should mean in a buyer conversation
Builders use “tested” differently. Ask for a plain-language description of the validation performed on your machine. Useful details include whether the operating system was installed and updated, memory stability was checked, storage health was verified, the CPU and GPU were loaded together, and temperatures were observed with the case closed. You can also ask whether the system was transported in its final configuration or whether a heavy GPU is removed for shipping.
Rank #2
- COMPACT ITX DESIGN: Unleash top-tier performance in a sleek 18.25L system, compact yet powerful for gamers, creators, and professionals—roughly the size of a large shoebox.
- PLAY ANY GAMES: 120+ FPS on High+ Settings on 1440p with GeForce RTX 5080 16GB | AMD RYZEN 7 9800X3D 4.7GHz (5.2GHz Turbo) 8-Core 16-Thread | Gigabyte B850I AORUS PRO Motherboard.
- MAXIMUM PERFORMANCE: NR200P Max Case | 280mm AIO| 850W 80+ Gold Efficiency Power Supply, unlocks your system to its full cooling & gaming potential.
- SUPERIOR MEMORY: 2TB Gen4 M.2 SSD offers next-gen storage with a Gen 4x4 NVMe controller, delivering high-speed performance for apps, photos, media, and games | 32GB (2x16GB) DDR5 6000MHz RGB RAM w/ heatsink delivering blazing speed, plus vibrant RGB lighting.
- SPECIAL FEATURES: Glass panel or Mesh panel | Type-C | USB 3.2 Gen 2 Type-C| 5x USB 3.2 | No Bloatware | WiFi | Bluetooth | 1x HDMI & 2x Display Port | USB Ports | HD Audio & Mic.
Do not convert a builder’s internal test into an independent benchmark. The available information does not provide a common test protocol or comparable gaming results for BYB and Cataclysm, so it cannot establish a performance winner.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Warranty, freight and returns: read the sentence that costs money
For BYB, the product page snapshot states a two-year warranty, but the supplied information does not spell out parts, labour, freight or exclusions. Obtain the full written policy. For Cataclysm, the page states three years and says it pays courier costs both ways for approved warranty repairs. Confirm what makes a repair “approved,” whether diagnostic work is covered, and whether customer-installed upgrades affect coverage.
Ask every builder these operational questions:
- Who pays outbound and return freight during a warranty claim?
- Is the repair handled in Australia, and where is the receiving address?
- What packaging must the customer retain?
- What happens if a component is discontinued or unavailable?
- Are accidental damage, liquid damage and transport damage excluded?
- Does replacing RAM, storage or the GPU require prior approval?
Price and lead-time reality
The only directly observed complete-system price here is BYB’s AUD 4,499 listing on 13 October 2026 for the specified Ryzen 7 9800X3D and RTX 5070 Ti configuration. Cataclysm’s around-AUD-2,000 figure is a general custom-build starting point, not a comparable Mini-ITX gaming quote. The figures should therefore appear side by side only as context, never as a value verdict.
| Item | Documented figure | Qualification |
|---|---|---|
| BYB Mini-ITX configuration | AUD 4,499 | Price displayed on 13 October 2026 for the listed Ryzen 7 9800X3D, RTX 5070 Ti 16GB, 32GB DDR5, 2TB SSD and Fractal Terra Silver system; current price and stock require confirmation. |
| Cataclysm custom builds | Around AUD 2,000 starting point | General service figure accessed on 13 October 2026; not stated as an SFF quote and not equivalent to BYB’s specification. |
| Cataclysm average order-to-built time | About five business days | Average stated on the general custom-build page; busy periods can range from one or two days to two or three weeks. |
| BYB build time | Not stated | Ask for the current queue and dispatch estimate. |
A practical request-for-quote template
Send the same brief to each builder so the replies are comparable:
Use case: living-room / home-office gaming
Maximum case footprint: [measure your available width, depth and height]
Target resolution and refresh rate: [for example, 1440p high refresh]
CPU preference: [model or performance target]
GPU preference: [model or performance target]
Storage and memory: [capacity and speed]
Required inclusions: operating system, Wi-Fi, Bluetooth, front USB, quiet profile
Please provide: exact part numbers, case dimensions, GPU clearance, cooler clearance,
PSU model, fan layout, closed-panel test method, temperatures, total delivered price,
build/dispatch estimate and complete warranty and freight terms.Replace the bracketed fields with your measurements and priorities. The goal is not to force every builder into identical parts; it is to make differences visible.
Common SFF buying mistakes and fixes
Choosing by case name alone
Problem: the case looks compact, but the selected GPU or cooler is not compatible. Fix: obtain the exact component model numbers and a written clearance confirmation.
Comparing headline prices
Problem: one quote includes a stronger GPU, operating system, shipping or premium fans while another omits them. Fix: compare a delivered, component-equivalent total.
Assuming “stress tested” means benchmarked
Problem: the phrase hides the workload, duration and panel configuration. Fix: ask what was run and request recorded temperatures or a build report.
Ignoring freight risk
Problem: a heavy graphics card can be stressed during transport. Fix: ask whether the GPU is supported or removed for shipping, what packaging is used and who pays if transit damage occurs.
Planning upgrades without checking space
Problem: an extra drive, larger GPU or taller cooler leaves no clearance. Fix: ask which upgrade paths remain after the initial build and which parts would need replacement together.
Which option fits which buyer?
Choose the BYB listing when you want a defined starting point
BYB is the most concrete option in the available evidence because the product page names a Mini-ITX case and major components, identifies Sydney assembly and testing, and states Australia-wide delivery and a two-year warranty. It suits a buyer who wants to begin with a published configuration, provided the exact parts, current price, stock and service terms are confirmed.
Contact Cataclysm when specification help and warranty logistics matter
Cataclysm is better treated as a builder to brief for a custom Mini-ITX design. Its documented hand-build, stress-test, free-shipping and three-year warranty process may appeal to a buyer who wants consultation and clearer freight support. The SFF fit, final price and lead time still need a specific quote.
Contact Evolve for a supporting cable or repair requirement
Evolve’s documented cable and repair services are relevant when a compact build needs custom sleeving, GPU servicing or thermal maintenance. They do not, on the available evidence, establish a complete SFF system offer.
Bottom line for Australian buyers
Start with BYB’s documented Mini-ITX configuration as a reference, not as a proven national winner. Ask Cataclysm for a Mini-ITX quote if its consultative process, three-year warranty and stated two-way warranty freight are attractive. Use Evolve for a clearly defined cable or repair requirement. In every case, make the decision from exact part numbers, measured clearances, closed-case testing, delivered cost and written warranty terms rather than from a “best builder” label.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
