NVIDIA’s Tegra X1 was a high-end mobile system-on-chip announced in January 2015, pairing an eight-core ARM CPU with a 256-core Maxwell GPU. In HotHardware’s 2015 hands-on report, it scored 44,303 in Basemark X and reached 124.2 FPS in GFXBench T-Rex offscreen. Those are historical results from that report’s test setup—not current rankings or measurements reproduced here.
What NVIDIA announced in Tegra X1
At CES on January 4, 2015, NVIDIA described Tegra X1 as an eight-core processor with four ARM Cortex-A57 cores and four Cortex-A53 cores, alongside a 256-core Maxwell GPU fabricated on a 20nm process. NVIDIA also listed 1.3-gigapixel-per-second camera throughput and support for 60 fps 4K video in H.265, H.264, and VP9. These are launch-announcement specifications and capability claims, not independent measurements. NVIDIA’s January 2015 launch announcement also named support for Unreal Engine 4, DirectX 12, OpenGL 4.5, CUDA, OpenGL ES 3.1, and Android Extension Pack.
NVIDIA promoted the chip as having “over one teraflops of processing power.” That phrase was the company’s launch-era characterization; it is not a benchmark score, nor does it establish sustained real-world throughput across applications.
What the 2015 benchmark results show
The figures below come from two different sources and should not be read as a single cross-benchmark ranking. NVIDIA’s white paper gives relative comparisons against Tegra K1; HotHardware reports hands-on scores and comparison frame rates. The tests, versions, render modes, and provenance matter.
#1 Best Overall
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| Source and year | Test and conditions | Reported result |
|---|---|---|
| NVIDIA white paper, January 2015 | GFXBench 3.0 Manhattan, 1080p offscreen; compared with Tegra K1 | 2.0× Tegra K1 performance |
| NVIDIA white paper, January 2015 | GFXBench 2.7 T-Rex, 1080p offscreen; compared with Tegra K1 | About 1.75× Tegra K1 performance |
| NVIDIA white paper, January 2015 | 3DMark 1.3 Ice Storm Unlimited; compared with Tegra K1 | 1.5× Tegra K1 performance |
| NVIDIA white paper, January 2015 | Basemark X 1.1; compared with Tegra K1 | 1.5× Tegra K1 performance |
| HotHardware hands-on report, 2015 | Basemark X; report excerpt does not state a version or render mode | 44,303 |
| HotHardware hands-on report, 2015 | GFXBench T-Rex offscreen; report excerpt does not state a version or resolution | Tegra X1: 124.2 FPS; iPad Air 2: 69.9 FPS; SHIELD Tablet: 65.8 FPS |
NVIDIA’s January 2015 Tegra X1 white paper also says its Epic Rivalry demo produced more than twice the frames per second on X1 as on Tegra K1. That, like its benchmark ratios, is a vendor-published comparison and does not promise the same uplift in every game or workload.
HotHardware’s 2015 hands-on report supplies the absolute scores and T-Rex comparison above. The reported figures are tied to that publication’s test setup. The available account does not establish sustained performance, thermal behavior, or results for every product built around Tegra X1.
Rank #2
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How to interpret the scores
- Relative results are not absolute scores. NVIDIA’s 2.0×, 1.75×, and 1.5× figures compare X1 with Tegra K1 in specified tests; they do not tell you a universal speed multiplier.
- Offscreen tests have specific conditions. The NVIDIA white-paper GFXBench comparisons specify 1080p offscreen rendering. HotHardware labels its T-Rex result offscreen, but the report excerpt available here does not specify resolution or benchmark version.
- Different benchmark names are not interchangeable. Basemark X points and GFXBench frames per second measure different tests and cannot be collapsed into one performance number.
- Historical results are not current device comparisons. These 2015 results do not compare Tegra X1 with modern processors, and they were not independently reproduced for this article.
Phoronix also reviewed the SHIELD Android TV in a comparison involving low-power x86, ARM, and MIPS systems, including a Tegra K1 development board. Its cited review provides a separate systems-comparison context, but the available summary does not provide individual scores, so no scores are inferred here. Phoronix’s SHIELD Android TV review.
SHIELD Android TV: a real Tegra X1 device
NVIDIA’s March 3, 2015 announcement gives a concrete example of how the chip was deployed: the SHIELD Android TV console. NVIDIA listed Tegra X1, a 256-core Maxwell GPU, 3GB RAM, and 16GB storage for that announced model. Its published specifications also included 4K playback and capture up to 60 fps for VP9, H.265, and H.264, HDMI 2.0, two USB 3.0 Type-A ports, Gigabit Ethernet, and microSD support for cards up to 128GB. These are specifications for that SHIELD model, not a description of every Tegra X1 implementation. NVIDIA’s SHIELD Android TV announcement.
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Rank #3
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In its June 2015 review, TechCrunch described the Android TV product context, including games downloaded natively when optimized for the device and game streaming. That living-room use case helps explain why Tegra X1’s graphics and video capabilities featured prominently in NVIDIA’s launch positioning. TechCrunch’s SHIELD review.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What the evidence does—and does not—establish
Taken together, NVIDIA’s launch materials establish the specifications it advertised and its own Tegra K1 comparisons; HotHardware supplies contemporary hands-on scores for Basemark X and GFXBench T-Rex. The results document how Tegra X1 was presented and tested in 2015. They do not establish how a particular device performs today, how performance holds up under prolonged load, or how Tegra X1 ranks against processors released later.
Quick Recap
Best Value
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Rank #4
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