AMD Radeon RX 6700S vs NVIDIA Tesla K40m Comparison

Where Each One Wins

The benchmark records in this comparison are unusually one-sided. Across all recorded tests, the AMD Radeon RX 6700S claims victory in every single head-to-head matchup. The database shows a 1 to 0 win tally in favor of the AMD part, with the only directly comparable test being Geekbench OpenCL.

The AMD Radeon RX 6700S delivers a comprehensive sweep across the available benchmark suite. Its Geekbench OpenCL score of 70,965 stands far above the NVIDIA Tesla K40m's 19,885 in the same test, representing a 256.9% advantage. Beyond that single shared test, the RX 6700S has a much wider benchmark footprint: it records scores in 3DMark Steel Nomad DX12 (1,451), Geekbench Metal (72,864), Geekbench Vulkan (76,150), and multiple Passmark tests including G3D (15,066), G2D (739), GPU Compute (5,990), and several DirectX legacy tests. The Tesla K40m, by contrast, only has a single recorded Geekbench OpenCL score in the database.

This makes the use-case split straightforward. For any workload captured by these benchmark suites, the AMD Radeon RX 6700S is the clear performer. The Tesla K40m's role appears constrained to compute-oriented tasks measured by OpenCL, and even there it loses decisively. The RX 6700S also shows strength in modern API tests, with its DirectX 12 Ultimate support and Vulkan 1.4 compatibility positioning it for contemporary workloads, while the Tesla K40m's DirectX 12 (11_1) and Vulkan 1.2.175 support reflect an older feature set.

Architecture Differences

The two GPUs come from fundamentally different eras and design philosophies. The AMD Radeon RX 6700S uses the Navi 23 chip built on RDNA 2.0 architecture, fabricated on a 7 nm process at TSMC. It packs 11,060 million transistors into a 237 mm² die, yielding a transistor density of 46.7 million per square millimeter. The NVIDIA Tesla K40m uses the GK110B chip based on Kepler architecture, also from TSMC but on a much older 28 nm process. It contains 7,080 million transistors spread across a substantially larger 561 mm² die, resulting in a much lower density of 12.6 million per square millimeter.

The clock speed gap is enormous. The RX 6700S runs at a 1700 MHz base clock and boosts to 2000 MHz, with a game clock of 1890 MHz. The Tesla K40m idles at a 745 MHz base and reaches only 876 MHz boost. This nearly 2.3x difference in boost clocks helps explain the performance gap despite the Tesla having more raw shading units.

Memory configurations also diverge sharply. The RX 6700S uses 8 GB of GDDR6 on a 128-bit bus, delivering 224.0 GB/s of bandwidth at 14 Gbps effective. The Tesla K40m offers more capacity at 12 GB of GDDR5 on a 384-bit bus, achieving 288.4 GB/s at 6 Gbps effective. The Tesla's wider bus and higher bandwidth are notable, but the AMD part compensates with faster memory technology and much higher clocks.

Compute resources tell a mixed story. The Tesla K40m has 2,880 shading units, 240 TMUs, and 48 ROPs. The RX 6700S has fewer shading units at 1,792, fewer TMUs at 112, but more ROPs at 64. The AMD part also includes 28 ray tracing cores, a feature entirely absent from the Kepler-based Tesla. In terms of raw throughput, the RX 6700S reaches 7.168 TFLOPS FP32 and 14.34 TFLOPS FP16 (2:1), while the Tesla K40m manages 5.046 TFLOPS FP32 with no recorded FP16 capability. Pixel and texture rates follow: the RX 6700S hits 128.0 GPixel/s and 224.0 GTexel/s, versus the Tesla's 52.56 GPixel/s and 210.2 GTexel/s.

Power and physical design also differ markedly. The RX 6700S is an integrated graphics package (IGP) with an 80 W TDP and no power connectors, designed for portable devices. The Tesla K40m is a dual-slot card with a 245 W TDP, a suggested 550 W PSU, and a 267 mm (10.5 inches) length. It has no display outputs, while the RX 6700S's outputs are portable-device dependent. The interface generation differs too: PCIe 4.0 x8 for AMD versus PCIe 3.0 x16 for NVIDIA.

The Verdict

The data points to a single conclusion: the AMD Radeon RX 6700S is the superior GPU in this matchup across every measured metric. Its 256.9% lead in the only shared benchmark is not a marginal edge but a generational gap. The RX 6700S also sits at the 67th percentile of all GPUs in the database, while the Tesla K40m ranks at the 65th percentile, confirming that the AMD part is not just faster than this specific rival but also better positioned globally.

For buyers or system integrators choosing between these two, the RX 6700S is the only rational pick based on recorded performance. It wins on modern API support, ray tracing capability, raw compute throughput, and power efficiency (80 W versus 245 W). The Tesla K40m's advantages, such as larger memory capacity (12 GB versus 8 GB) and higher memory bandwidth (288.4 GB/s versus 224.0 GB/s), do not translate into any recorded benchmark victory.

The Tesla K40m's only niche would be scenarios requiring its specific 12 GB frame buffer or its Kepler-era compute characteristics, but no benchmark in the database rewards those traits. For anyone comparing these two parts today, the RX 6700S is the definitive choice.

FAQ

Q: Which GPU has a higher average benchmark score?

A: The AMD Radeon RX 6700S has an average benchmark score of 22,154, while the NVIDIA Tesla K40m averages 19,885.

Q: How much faster is the RX 6700S in Geekbench OpenCL?

A: The RX 6700S scores 70,965 versus 19,885 for the Tesla K40m, a 256.9% advantage.

Q: Does the Tesla K40m support ray tracing?

A: No. The Tesla K40m has no ray tracing cores, while the RX 6700S includes 28 RT cores.

Q: What is the memory capacity difference?

A: The Tesla K40m has 12 GB of GDDR5, while the RX 6700S has 8 GB of GDDR6. The Tesla also has higher memory bandwidth at 288.4 GB/s versus 224.0 GB/s.

Q: Which card has better API support?

A: The RX 6700S supports DirectX 12 Ultimate (12_2), Vulkan 1.4, and OpenGL 4.6. The Tesla K40m supports DirectX 12 (11_1), Vulkan 1.2.175, and OpenGL 4.6.

Q: What is the power consumption difference?

A: The RX 6700S has an 80 W TDP and requires no power connectors, whereas the Tesla K40m has a 245 W TDP and a suggested 550 W power supply.

Head-to-Head Benchmarks

The only directly comparable benchmark in the database is Geekbench OpenCL, and the result is emphatic. The AMD Radeon RX 6700S posts 70,965 points, while the NVIDIA Tesla K40m manages 19,885. The 256.9% delta means the AMD card delivers more than 3.5 times the OpenCL performance of the Tesla. This is the largest single gap in the comparison and reflects the combined effect of architecture generation, clock speed, and feature support.

Beyond that shared test, the RX 6700S has a broad benchmark portfolio that the Tesla K40m simply cannot contest. In 3DMark Steel Nomad DX12, the RX 6700S scores 1,451. In Geekbench Metal, it reaches 72,864, and in Geekbench Vulkan, 76,150. Passmark results show 15,066 in G3D, 739 in G2D, 5,990 in GPU Compute, and legacy DirectX scores of 195 (DX9), 134 (DX11), 87 (DX10), and 58 (DX12). The Tesla K40m has no recorded results in any of these tests, leaving the RX 6700S uncontested in every category except OpenCL, where it also wins.

The nearest rival data provides additional context. The RX 6700S sits within 1.7% of the AMD Radeon RX 7700 XT (22,549 average) and 1.3% of the NVIDIA GeForce RTX 5060 Mobile (22,435). It slightly edges out the NVIDIA GeForce GTX 1060 6 GB (21,856) by 1.4% and trails the RX 5700 (22,170) by only 0.1%. These tight margins show the RX 6700S is competitive with a much newer generation of GPUs. The Tesla K40m, meanwhile, sits within 1.4% of the NVIDIA Quadro K5200 (19,602) and 1.3% of the AMD FirePro D300 (19,637), and it trails the AMD FirePro W7000 (19,905) by 0.1% while leading the AMD Radeon RX 6650 XT (19,765) by 0.6%.

Specification Differences

The two GPUs differ across nearly every specification category. The RX 6700S uses a 7 nm process with 11,060 million transistors on a 237 mm² die, while the Tesla K40m uses 28 nm with 7,080 million transistors on a 561 mm² die. Transistor density is 46.7M per mm² for AMD versus 12.6M per mm² for NVIDIA.

Clock speeds: RX 6700S runs at 1700 MHz base, 2000 MHz boost, 1890 MHz game, with 1750 MHz memory (14 Gbps effective). Tesla K40m runs at 745 MHz base, 876 MHz boost, no game clock, with 1502 MHz memory (6 Gbps effective).

Memory: RX 6700S has 8 GB GDDR6 on a 128-bit bus with 224.0 GB/s bandwidth. Tesla K40m has 12 GB GDDR5 on a 384-bit bus with 288.4 GB/s bandwidth.

Compute: RX 6700S has 1,792 shading units, 112 TMUs, 64 ROPs, and 28 RT cores. Tesla K40m has 2,880 shading units, 240 TMUs, and 48 ROPs with no RT cores.

Throughput: RX 6700S achieves 7.168 TFLOPS FP32, 14.34 TFLOPS FP16, 128.0 GPixel/s, and 224.0 GTexel/s. Tesla K40m achieves 5.046 TFLOPS FP32, no FP16, 52.56 GPixel/s, and 210.2 GTexel/s.

Power and physical: RX 6700S is an 80 W IGP with no power connectors and portable-device-dependent outputs. Tesla K40m is a 245 W dual-slot card with a 550 W suggested PSU, no display outputs, and a 267 mm length.

Interface and APIs: RX 6700S uses PCIe 4.0 x8, DirectX 12 Ultimate (12_2), Vulkan 1.4. Tesla K40m uses PCIe 3.0 x16, DirectX 12 (11_1), Vulkan 1.2.175.

Release and status: RX 6700S released 2022-01-03, Tesla K40m released 2013-11-21. Both are end-of-life. The Tesla K40m carried a launch MSRP of 7,699 USD.