AMD Radeon RX 7900 XT vs NVIDIA Tesla K10 Comparison

The NVIDIA Tesla K10 and AMD Radeon RX 7900 XT represent two vastly different eras of GPU design, and the benchmark data confirms a stark split in their capabilities. In the single shared benchmark test, the legacy Tesla K10 actually outperforms the modern Radeon, but the RX 7900 XT’s overwhelming advantages in raw compute, memory, and feature support make it the clear choice for any modern workload. The data shows a 10% win for the Tesla K10 in OpenCL, yet the Radeon’s other scores and specifications reveal a fundamentally superior product.

Head-to-Head Benchmarks

The only direct comparison available is the Geekbench OpenCL test, and it delivers a surprising result. The NVIDIA Tesla K10 scores 14,029 points, while the AMD Radeon RX 7900 XT scores 12,756 points. This gives the Tesla K10 a 10% advantage, a notable lead for a card released in 2012. This outcome is likely attributable to the K10’s dual-GPU design, which historically provided strong compute throughput in certain legacy APIs. However, this single data point is an outlier when viewed against the broader picture.

The Radeon RX 7900 XT’s performance profile is defined by its other benchmark results, which are not directly comparable to the K10 but illustrate its modern prowess. In Geekbench Vulkan, the RX 7900 XT scores 71,068 points, a figure that dwarfs its own OpenCL result and highlights its superior driver optimization for contemporary graphics APIs. In Passmark’s G3D test, it achieves 29,009 points, and in GPU Compute, it scores 16,828. These scores, while not head-to-head, demonstrate a level of performance that the Tesla K10, with its single 14,029 OpenCL score, cannot hope to match in modern applications.

The percentile rankings further contextualize this gap. Both cards sit at the 55th percentile of all GPUs, which is a statistical quirk of the database’s averaging. The Tesla K10’s average benchmark score is 14,029, while the RX 7900 XT’s average is 13,745. This near-identical average is misleading because the Radeon’s average is dragged down by low scores in older Passmark DirectX tests (110 in DX12, 158 in DX10, 322 in DX9), which are likely not representative of its real-world capability in modern titles. The K10, with only one benchmark, has no such variability.

Where Each One Wins

The Tesla K10’s win is isolated to the Geekbench OpenCL workload, where its 14,029 score edges out the Radeon’s 12,756. This suggests that for specific, legacy compute tasks that rely heavily on raw OpenCL throughput, the older card can still hold its own. Its dual-GPU configuration likely provides a boost in parallel processing scenarios that were common in early 2010s professional applications. For users running very old software that is not optimized for modern architectures, the K10 may deliver acceptable results.

The Radeon RX 7900 XT wins in virtually every other conceivable category. Its Vulkan score of 71,068 is massive and indicates superior performance in modern games and compute APIs. The Passmark G3D score of 29,009 confirms strong DirectX 11 and 12 gaming performance, despite low individual Passmark DX scores that likely reflect poor optimization for that specific benchmark suite. The RX 7900 XT’s 20 GB of memory, 800 GB/s bandwidth, and 51.48 TFLOPS FP32 compute make it a clear winner for 4K gaming, content creation, and any modern compute workload. The Tesla K10, with its 4 GB memory and 2.289 TFLOPS, is simply outclassed in these areas.

FAQ

Q: Is the NVIDIA Tesla K10 genuinely faster than the AMD Radeon RX 7900 XT?

A: No. The K10 wins the single shared Geekbench OpenCL test by 10% (14,029 vs. 12,756), but the RX 7900 XT dominates in all other metrics, including a Vulkan score of 71,068 and a Passmark G3D score of 29,009, which are not available for the K10.

Q: Why does the Radeon RX 7900 XT have a lower average benchmark score than the Tesla K10?

A: The RX 7900 XT’s average score of 13,745 is pulled down by very low scores in legacy Passmark DirectX tests (110 in DX12, 158 in DX10, 322 in DX9). The K10’s average of 14,029 is based on its single OpenCL score, which is not comparable to the Radeon’s broader test suite.

Q: Which card is better for modern gaming?

A: The Radeon RX 7900 XT is the only viable option. It supports DirectX 12 Ultimate (12_2), has 84 ray tracing cores, and offers 51.48 TFLOPS FP32 performance. The Tesla K10 only supports DirectX 12 (11_0) and has no ray tracing hardware, making it obsolete for modern titles.

Q: How do the memory specifications compare?

A: The Radeon RX 7900 XT has 20 GB of GDDR6 memory on a 320-bit bus with 800.0 GB/s bandwidth. The Tesla K10 has 4 GB of GDDR5 memory on a 256-bit bus with 160.0 GB/s bandwidth. The Radeon has five times the memory capacity and five times the bandwidth.

Q: Can the Tesla K10 be used for modern compute tasks?

A: It is severely limited. Its 4 GB memory capacity and 2.289 TFLOPS FP32 performance are insufficient for modern datasets. The Radeon’s 51.48 TFLOPS and 20 GB memory make it vastly more capable, despite the K10’s single OpenCL benchmark win.

Q: What is the power consumption difference?

A: The Tesla K10 has a TDP of 225 W and requires a 550 W power supply, while the Radeon RX 7900 XT has a TDP of 300 W and requires a 700 W power supply. The Radeon draws more power but delivers disproportionately higher performance.

Specification Differences

The two cards differ in nearly every specification category. The Tesla K10 features 1,536 shading units, 128 TMUs, and 32 ROPs, while the Radeon RX 7900 XT has 5,376 shading units, 336 TMUs, and 192 ROPs. The Radeon also has 84 ray tracing cores, a feature completely absent from the K10. The memory subsystem is drastically different: the K10 uses 4 GB GDDR5 on a 256-bit bus, while the Radeon uses 20 GB GDDR6 on a 320-bit bus. Pixel and texture rates reflect this disparity, with the Radeon achieving 459.6 GPixel/s and 804.4 GTexel/s versus the K10’s 23.84 GPixel/s and 95.36 GTexel/s. The Radeon’s FP32 performance is 51.48 TFLOPS compared to the K10’s 2.289 TFLOPS, a 22.5x difference. The Radeon also supports FP16 at 103.0 TFLOPS, which the K10 does not support at all.

Architecture Differences

The architectural gap is generational. The Tesla K10 uses the Kepler architecture on a 28 nm process at TSMC, with a transistor count of 3,540 million on a 294 mm² die. The Radeon RX 7900 XT uses the RDNA 3.0 architecture on a 5 nm process, also at TSMC, with 57,700 million transistors on a 529 mm² die. This results in a transistor density of 12.0M / mm² for the K10 versus 109.1M / mm² for the Radeon, showcasing the massive efficiency and density improvements of modern fabrication. The Radeon’s codename is Plum Bonito, part of the Navi III generation, while the K10 is based on GK104, part of the Tesla Kepler generation. The Radeon supports PCIe 4.0 x16, doubling the bandwidth of the K10’s PCIe 3.0 x16 interface. Display outputs also differ: the K10 has no outputs, while the Radeon offers 1x HDMI 2.1a, 2x DisplayPort 2.1, and 1x USB Type-C.

The Verdict

The data is unequivocal for any modern use case: the AMD Radeon RX 7900 XT is the superior GPU. Its 51.48 TFLOPS FP32 performance, 20 GB of memory, and 84 ray tracing cores make it a powerhouse for gaming, rendering, and compute. The Tesla K10’s 2.289 TFLOPS and 4 GB memory are relics of a bygone era, and its sole OpenCL benchmark victory is a statistical anomaly that does not translate to real-world modern performance. The Radeon’s support for DirectX 12 Ultimate and Vulkan 1.4 ensures compatibility with current and future software, while the K10’s DirectX 12 (11_0) support is legacy-only.

However, the Tesla K10 has a niche for retro-computing enthusiasts or those running specific legacy OpenCL applications that were optimized for its dual-GPU architecture. In that narrow context, its 10% lead in Geekbench OpenCL over the Radeon is a point in its favor. But for 99% of users, the choice is clear: the Radeon RX 7900 XT is the only rational pick. Its launch MSRP of 899 USD reflects its high-end positioning, while the K10’s launch MSRP of 5,099 USD was for a professional compute card that has long been end-of-life. The Radeon’s modern architecture, superior specifications, and comprehensive API support make it the definitive winner.