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NVIDIA CMP 220HX Crypto-Mining A100 GPU Could Crush GeForce RTX 3090 At 210 MH/s was a March 2021 leak claim, not a confirmed product specification. Reports described an alleged A100-based mining card reaching 210 MH/s on Ethereum—far above the RTX 3090’s estimated 115–120 MH/s—but NVIDIA never documented a CMP 220HX as a released retail model.
The rumor was technically plausible because an A100-derived accelerator could offer much higher HBM memory bandwidth than a GeForce RTX 3090. However, no official launch, final specification, independent benchmark, verified price, or mainstream purchase channel established that the card actually shipped. Ethereum also ended proof-of-work mining in September 2022, so 210 MH/s is now a historical hypothetical rather than a current Ethereum-buying metric.
Key takeaways
- NVIDIA’s official CMP lineup documents the 30HX, 40HX, 50HX, and 90HX, but not a CMP 220HX.
- The reported 210 MH/s Ethereum result came from a hardware leak and was never presented as an official NVIDIA benchmark or independently verified production-card result.
- A reported approximately 1.55 TB/s of HBM bandwidth could have made an A100-derived design attractive for Ethash, compared with 936 GB/s for the RTX 3090 in contemporary reporting.
- At 210 MH/s versus an estimated 115–120 MH/s RTX 3090, the rumored card would have been about 1.75–1.83 times as fast, or approximately 75%–83% faster.
- The alleged $3,000 price was never confirmed, and hash rate alone could not establish profitability without electricity, fees, network difficulty, cooling, and hardware costs.
- Ethereum completed its transition from proof of work to proof of stake around September 15, 2022, so Ethereum mainnet can no longer be mined.
What did the NVIDIA CMP 220HX rumor claim?
The NVIDIA CMP 220HX rumor described a possible mining-only accelerator derived from NVIDIA’s A100 data-center GPU. Contemporary reports attributed the claim to hardware leaker I_Leak_VN and associated the card with an alleged Ethereum Ethash performance of up to 210 MH/s, an alleged price of $3,000, and lower power consumption than a GeForce RTX 3090.
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1Scan for outdated or missing drivers - takes under a minute2Clear out junk files and repair common Windows errors3Fix the driver behind crashes, sound loss and screen glitchesThe important word is alleged. The original coverage explicitly treated the specifications as unconfirmed. Neither the 210 MH/s result nor the $3,000 price was an NVIDIA product specification. Tom’s Hardware’s contemporaneous report described the A100/CMP 220HX information as a report based on a leak, while HotHardware’s coverage likewise presented the specifications as unconfirmed.
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| Claim | Evidence status | What can responsibly be said |
|---|---|---|
| CMP 220HX existed as a product concept | Rumored | Reports described a possible A100-derived mining design. |
| Ethereum performance | Unconfirmed leak | Up to 210 MH/s was claimed; no production-card benchmark verified it. |
| Price | Unconfirmed leak | $3,000 was reported as an alleged price, not an NVIDIA MSRP. |
| Power draw | Unconfirmed | Contemporary reporting discussed A100-class power assumptions, but no final 220HX specification was established. |
| Retail availability | Not established | No official launch, partner listing, distributor inventory, or documented buying route was identified in the supplied evidence. |
Was the CMP 220HX a real, released NVIDIA product?
The CMP 220HX was a reported product concept or leak, not a confirmed retail product in NVIDIA’s published CMP lineup. NVIDIA announced the CMP mining-product family on February 18, 2021, describing CMP hardware as mining-focused products without display outputs. NVIDIA’s official CMP page lists the CMP 30HX, 40HX, 50HX, and 90HX—not the CMP 220HX.
NVIDIA’s official CMP product page is the strongest direct evidence for the documented lineup. NVIDIA developer documentation also refers to CMP 90HX and CMP 70HX among Ampere CMP devices, without listing a CMP 220HX. The absence of a model from a web page cannot prove that no prototype or engineering sample ever existed, but no official 220HX datasheet, partner launch, PCI device identity, independent review, or mainstream retail availability is established by the supplied research.
The safest conclusion is therefore: the CMP 220HX was apparently never brought to a documented mainstream release, and its existence as a purchasable product remains unconfirmed. That conclusion is more accurate than either calling the card a launched product or claiming with absolute certainty that NVIDIA never fabricated any prototype.
Where did the 210 MH/s figure come from?
The 210 MH/s figure came from a hardware-leak claim attributed to I_Leak_VN and was assumed to describe Ethereum’s Ethash algorithm. NVIDIA did not publish the result as an official benchmark, and no independent reviewer tested a verified production CMP 220HX.
That distinction matters because a mining hash-rate number is meaningful only when the test conditions are known. A credible benchmark would identify the physical card, firmware, driver, mining software, Ethash epoch or DAG, memory settings, power limit, cooling arrangement, and whether the result was sustained rather than a short peak. The rumor did not provide the level of verification needed to turn “up to 210 MH/s” into a guaranteed specification.
NVIDIA’s own CMP materials also show why the mining epoch matters: published hash-rate figures need algorithm and DAG context. An old Ethash result should not be copied into a modern mining calculator as proof that a particular card existed or would perform identically on another algorithm.
Why could an A100-derived GPU have been so fast at Ethash?
The technical theory centered on memory bandwidth. Ethash was strongly dependent on memory access, so a design with high-bandwidth memory could have an advantage over a conventional gaming GPU with lower-bandwidth GDDR6X.
Contemporary reporting compared an alleged A100-derived CMP 220HX configuration with the RTX 3090 and cited approximately 1.55 TB/s of HBM2 bandwidth for the relevant A100 comparison versus 936 GB/s for the RTX 3090’s GDDR6X memory. The same reporting also pointed to more integer execution resources on the A100. Those characteristics help explain why the rumor sounded credible, but they do not prove that bandwidth alone would produce 210 MH/s.
Mining performance depends on memory timings, cache behavior, software kernels, firmware, clocks, power limits, thermal conditions, and the exact memory configuration. A reduced-memory A100 derivative could behave differently from a full A100, and removing or changing memory subsystems could alter both bandwidth and performance. An A100 architecture was not automatically a mining card merely because the architecture appeared suitable for a memory-heavy workload.
NVIDIA’s official description of CMP hardware supports the broader concept of a mining-specific card: CMP products omit graphics output, lack display connectors, use an airflow-oriented form factor, and use lower peak core voltage and frequency to improve mining efficiency. Those design choices make a mining-only A100 derivative plausible in principle, but they do not validate the CMP 220HX report. NVIDIA’s CMP announcement explains the confirmed mining-only design goals.
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How would the rumored CMP 220HX compare with the GeForce RTX 3090?
On the reported Ethereum numbers, a 210 MH/s CMP 220HX would have been substantially faster than a contemporary RTX 3090 estimate of roughly 115–120 MH/s, but the comparison is between an unverified leak and a variable mining estimate.
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| Category | Rumored CMP 220HX | GeForce RTX 3090 comparison |
|---|---|---|
| Ethereum hash rate | Up to 210 MH/s, unconfirmed | Approximately 115–120 MH/s in 2021 reports |
| Relative hash rate | About 1.75–1.83 times the RTX 3090 estimate | Baseline for the comparison |
| Relative advantage | Approximately 75% faster than 120 MH/s, or 82.6% faster than 115 MH/s | Not literally twice as fast in every comparison |
| Memory approach | A100-derived HBM configuration, unconfirmed | 24GB GDDR6X |
| Memory bandwidth in contemporary comparison | Approximately 1.55 TB/s claimed for the relevant A100 configuration | 936 GB/s |
| Graphics output | Expected to be absent if it followed CMP design | Present |
| Primary design | Mining-only accelerator was rumored | Consumer gaming and general-purpose GPU |
| Resale flexibility | Likely limited if mining-only | Broader gaming, rendering, and compute uses |
According to the contemporary figures, 210 ÷ 120 − 1 equals a 75% advantage, while 210 ÷ 115 − 1 is approximately 82.6%. The rumored card would therefore have been roughly 1.75–1.83 times as fast as the reported RTX 3090 range, not unconditionally “two times faster.”
The RTX 3090 numbers were also not universal results. Actual performance could vary with memory tuning, mining software, silicon quality, cooling, and power limits. The contemporary comparison reported the 115–120 MH/s RTX 3090 range, but the range should not be treated as a guaranteed result for every RTX 3090.
What A100 specifications should not be confused with CMP 220HX specifications?
The A100 was a data-center accelerator, not a consumer GeForce gaming card, and NVIDIA sold it in multiple configurations and form factors. A100 PCIe and SXM versions differed in power, cooling, interconnect, and deployment environment.
Later A100 80GB PCIe specifications list 80GB of HBM2e memory, approximately 1,935 GB/s of memory bandwidth, and a 300W maximum TDP. Those are specifications for a documented A100 variant, not specifications for the rumored CMP 220HX. NVIDIA’s official A100 documentation should be used for the A100 itself, while the CMP 220HX figures remain leak-based assumptions.
| Hardware reference | Documented or reported detail | Why the distinction matters |
|---|---|---|
| Later A100 80GB PCIe | 80GB HBM2e, approximately 1,935 GB/s bandwidth, 300W maximum TDP | These are official A100-variant specifications, not a CMP 220HX datasheet. |
| Rumored CMP 220HX | A100-derived design, approximately 1.55 TB/s in the contemporary comparison, and alleged 210 MH/s | These details were unconfirmed and may have referred to an earlier or modified configuration. |
| RTX 3090 | 24GB GDDR6X and 936 GB/s in the contemporary comparison | It was an actual consumer product with gaming functionality and a different memory architecture. |
Would the alleged $3,000 price have made the CMP 220HX worthwhile?
The alleged $3,000 CMP 220HX price cannot be evaluated as a real product price because NVIDIA never confirmed it. Contemporary reporting compared that figure with an approximately $11,000 A100 PCIe market reference and the RTX 3090’s $1,499 launch MSRP, but 2021 GPU prices were heavily distorted by shortages, scalpers, regional availability, and cryptocurrency demand.
Even if a 210 MH/s card had sold for $3,000, hash rate alone would not establish a profitable purchase. A proper historical calculation would need the card’s measured power at the wall, electricity rate, Ethereum price, network difficulty, pool fees, host-system cost, cooling, maintenance, taxes, downtime, and resale value. A rumored price and a best-case hash rate are not enough to calculate a reliable payback period.
The data-center origin would have introduced additional practical questions. A passive A100-style card could require strong directed server airflow and might overheat in an open-air desktop mining frame. A mining-only card could also have poor resale value because it would lack the gaming and display functionality that made an RTX 3090 useful outside mining.
What would a miner have needed to verify before buying?
- Product identity: Confirm an official model number, PCI device ID, firmware identity, board photographs, and a seller that can document the hardware. A calculator entry or marketplace listing alone is not evidence of a retail launch.
- Independent performance: Require a repeatable benchmark on physical hardware that identifies the Ethash implementation, epoch or DAG, software version, memory settings, power limit, and sustained rather than peak hash rate.
- Power efficiency: Measure power at the wall and calculate MH/s per watt. A high total hash rate can still be uneconomic if the platform consumes excessive power.
- Cooling: Check whether the card is passive or actively cooled, what airflow the original server design requires, and whether the intended rig can maintain safe temperatures without throttling.
- Software support: Verify driver, firmware, and mining-software compatibility. NVIDIA developer documentation states that NVIDIA development tools do not support CMP GPUs, which is a reminder that mining-only hardware can have a narrower software environment. NVIDIA’s CMP support documentation provides that limitation directly.
- Algorithm flexibility: Do not assume an Ethash-optimized accelerator will deliver similar results on other proof-of-work algorithms. Memory-bound and core-intensive workloads can produce very different rankings.
- Commercial terms: Confirm warranty coverage, return rights, replacement parts, shipping region, and whether the seller is offering a genuine product rather than a mislabeled A100, another CMP model, or a speculative listing.
- Exit value: Estimate resale value after mining. A displayless, mining-only board generally has a smaller pool of potential buyers than a functioning consumer GPU.
Why is 210 MH/s no longer a current Ethereum mining metric?
Ethereum mainnet no longer supports proof-of-work mining. The Ethereum Foundation scheduled the Bellatrix upgrade for September 6, 2022, and the proof-of-work chain transitioned to proof of stake around September 15, 2022, in an event known as The Merge.
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After The Merge, miners could no longer mine Ethereum’s mainnet, so a historical claim of 210 MH/s on Ethereum does not translate directly into current Ethereum revenue. The number can still help explain why the rumor attracted attention in 2021, but it should not be used as a present-day buying recommendation or profitability estimate. The Ethereum Foundation’s Merge announcement documents the transition.
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NVIDIA later discussed CMP and Ethereum’s transition in its regulatory reporting. NVIDIA’s 2022 SEC filing provides additional company-level context for the effect of The Merge on the mining-focused CMP business.
What is the final verdict on the NVIDIA CMP 220HX?
The NVIDIA CMP 220HX was a credible-sounding 2021 rumor, not a confirmed product announcement. The A100-derived theory made technical sense because HBM bandwidth and data-center resources could have suited Ethash, and a reported 210 MH/s would have significantly exceeded the contemporary RTX 3090 estimate. But no official NVIDIA documentation, final specification, independent benchmark, confirmed price, or mainstream purchase channel established that a CMP 220HX shipped.
The correct historical description is therefore “an unverified A100-based mining GPU rumor reported at up to 210 MH/s,” not “a released NVIDIA card that mined at 210 MH/s.” The story is even less useful as a current buying guide because Ethereum mining ended in September 2022.
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Did NVIDIA officially release the CMP 220HX?
NVIDIA did not officially document the CMP 220HX in the supplied CMP product information. NVIDIA’s published CMP page lists the 30HX, 40HX, 50HX, and 90HX, so the 220HX is best treated as an unconfirmed rumor rather than a verified retail product.
Could the rumored CMP 220HX really reach 210 MH/s?
The 210 MH/s Ethereum result was technically plausible as a leak-based estimate for an A100-derived HBM accelerator, but it was never confirmed by NVIDIA or independently measured on a verified production card. The figure should not be treated as a guaranteed benchmark.
Was the CMP 220HX faster than an RTX 3090?
The alleged 210 MH/s rate would have been about 75% faster than a 120 MH/s RTX 3090 estimate and about 82.6% faster than a 115 MH/s estimate. Both the CMP 220HX figure and the RTX 3090 mining range require historical and methodological qualification.
Can Ethereum still be mined with a CMP 220HX or RTX 3090?
Ethereum mainnet can no longer be mined because Ethereum completed its transition from proof of work to proof of stake around September 15, 2022. A historical Ethash hash rate therefore does not represent current Ethereum mining revenue.
Is an NVIDIA A100 a practical cryptocurrency-mining GPU?
An A100 is a data-center accelerator designed for AI, analytics, and high-performance computing rather than ordinary consumer mining. Server-oriented cooling, high acquisition cost, software considerations, and the end of Ethereum mining make an A100 a poor fit for a casual miner.
The Bottom Line
Bottom line: The CMP 220HX was never confirmed as a released NVIDIA product. Its alleged 210 MH/s Ethereum result could have been technically plausible for an A100-derived HBM accelerator, but it remained an unverified 2021 leak—and Ethereum mining ended in September 2022.
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