AMD Radeon RX 6850M XT vs NVIDIA GB10 Comparison

Head-to-Head Benchmarks

The recorded data shows two direct comparison points between the NVIDIA GB10 and the AMD Radeon RX 6850M XT, and both favor the NVIDIA side. The largest margin appears in the Geekbench OpenCL test, where the GB10 scores 120,137 against the RX 6850M XT's 85,040. That is a delta of 41.3% in favor of the GB10, a substantial lead that reflects the NVIDIA part's raw compute throughput in a general-purpose workload.

The second head-to-head test, Geekbench Vulkan, shows a narrower but still clear win for the NVIDIA GB10. Here the GB10 posts 114,648 while the AMD RX 6850M XT manages 99,483, putting the NVIDIA part ahead by 15.2%. While the OpenCL gap is dominant, the Vulkan result suggests the AMD part is more competitive in graphics-oriented API workloads, though it still trails by a meaningful margin.

Looking at the broader benchmark averages, the GB10's average score across all recorded tests is 117,393. The RX 6850M XT's average is 78,940. That average includes additional tests beyond the head-to-head pair, such as the 3DMark Steel Nomad DX12 score of 2,257 for the AMD part and a Geekbench Metal score of 128,981 for the same GPU. The NVIDIA GB10 has no equivalent entries in those specific tests, so the average comparison is not perfectly apples-to-apples, but the direction is consistent: the GB10 leads in the two tests where they can be directly compared.

The percentile rankings also favor the NVIDIA part. The GB10 sits at the 95th percentile among all GPUs, while the RX 6850M XT is at the 92nd. That three-point difference in percentile rank is modest, but it places the GB10 in a slightly higher tier of overall performance.

Looking at the nearest rivals in the database, the GB10's closest competitors are the NVIDIA RTX 4000 SFF Ada Generation (average score 117,088, delta 0.3% for the GB10), the AMD Radeon PRO W7700 (118,976, delta -1.3% meaning the GB10 trails that card), the NVIDIA Tesla V100 SXM2 16 GB (114,395, delta 2.6% for the GB10), and the NVIDIA RTX A5500 Mobile (113,944, delta 3% for the GB10). This puts the GB10 in a tight pack of workstation and server-oriented GPUs, slightly behind the W7700 but ahead of the Tesla and the mobile RTX A5500.

The RX 6850M XT's nearest rivals are quite different. It sits near the NVIDIA Tesla P100 PCIe 12 GB (79,396, delta -0.6% for the AMD), the P100 PCIe 16 GB (79,605, delta -0.8%), and the GeForce RTX 5090 (79,842, delta -1.1%). The AMD part is slightly ahead of the RTX 5090 D (77,712, delta 1.6%). This clustering around 79,000 points places the RX 6850M XT in a distinctly lower performance band than the GB10, which is surrounded by cards averaging around 114,000 to 119,000.

The Verdict

Based strictly on the recorded benchmark data, the NVIDIA GB10 is the clear winner in raw compute performance. It leads the RX 6850M XT by 41.3% in OpenCL and by 15.2% in Vulkan. The GB10 also holds a superior average score (117,393 versus 79,940) and a higher percentile ranking (95th versus 92nd). If the workload is compute-heavy and the two GPUs are the only options, the GB10 is the obvious choice.

However, the RX 6850M XT has its own strengths that are not captured in the direct head-to-head. The AMD part supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, while the GB10 lists no API support at all (DirectX, OpenGL, and Vulkan are all N/A in the database). For gaming or any application that relies on these graphics APIs, the RX 6850M XT is the only viable option from a software compatibility standpoint. The GB10 appears to be a compute-focused server part, not a consumer graphics card.

The AMD part also has a higher memory bandwidth (432.0 GB/s versus 273.2 GB/s) and a higher pixel rate (165.2 GPixel/s versus 116.1 GPixel/s). These metrics favor the RX 6850M XT in rasterization-heavy scenarios. The GB10 counters with a much higher texture rate (928.5 GTexel/s versus 413.0 GTexel/s) and nearly double the FP32 throughput (29.71 TFLOPS versus 13.21 TFLOPS).

Where Each One Wins

The NVIDIA GB10 wins decisively in pure compute throughput. Its FP32 performance of 29.71 TFLOPS is more than twice the RX 6850M XT's 13.21 TFLOPS. The GB10 also has a dominant texture rate, 928.5 GTexel/s to 413.0 GTexel/s, which indicates strong performance in texture-heavy workloads. The GB10's 6144 shading units and 384 TMUs dwarf the AMD part's 2560 shaders and 160 TMUs. This is a GPU designed for parallel computation, not for rasterization efficiency.

The GB10 also has a massive memory capacity advantage: 128 GB of LPDDR5X versus 12 GB of GDDR6 on the AMD. While the AMD part's memory is faster in terms of bandwidth (432.0 GB/s versus 273.2 GB/s), the GB10's capacity is ten times larger. For large datasets or models that need to reside in VRAM, the GB10 is the only practical option.

The RX 6850M XT wins in the areas of graphics API support and memory bandwidth. With DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, it can run modern games and graphics applications. The GB10 has no supported APIs in the database, meaning it likely cannot run such workloads. The AMD part also has a higher boost clock (2581 MHz versus 2418 MHz) and a higher pixel rate (165.2 GPixel/s versus 116.1 GPixel/s), which helps with fill-rate-bound scenarios.

The RX 6850M XT also has a higher memory clock (18 Gbps effective versus 8.5 Gbps effective) and a wider memory bus (192-bit versus 256-bit, though the GB10's is wider). The AMD part's 64 ROPs outnumber the GB10's 48 ROPs, which can matter for final pixel output.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The NVIDIA GB10 averages 117,393 across all recorded tests, while the AMD RX 6850M XT averages 79,940.

Q: How large is the gap in the OpenCL test?

A: The GB10 scores 120,137 versus 85,040 for the RX, which is a 41.3% delta in favor of the NVIDIA part.

Q: Is the RX 6850M XT competitive in any direct test?

A: In Vulkan, the gap narrows to 15.2% (114,648 versus 99,483), still a win for the GB10, but the AMD part scores higher in Geekbench Metal (128,981), a test the GB10 does not have.

Q: Which GPU has better memory bandwidth?

A: The RX 6850M XT has 432.0 GB/s, while the GB10 has 273.2 GB/s, so the AMD part is faster in bandwidth despite its smaller capacity.

Q: Does the AMD part support modern graphics APIs?

A: Yes, it supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, while the GB10 lists no API support in the database.

Q: Which GPU is closer to the GeForce RTX 5090 in average score?

A: The RX 6850M XT has an average score of 79,940, which is -1.1% below the RTX 5090's 79,842, while the GB10 (117,393) is far above that range.

Architecture Differences

The two GPUs come from entirely different design philosophies. The NVIDIA GB10 uses the Blackwell 2.0 architecture, built on a 5 nm process at TSMC. It is part of the Server Blackwell generation for the Bxx series. The chip is designated GB20B with a die size of 382 mm². This is a server-grade architecture with no traditional graphics API support, designed for compute tasks like AI and data center workloads. It has a 256-bit memory bus and uses 128 GB of LPDDR5X.

The AMD RX 6850M XT uses RDNA 2.0, built on a 7 nm process, also at TSMC. The Navi 22 chip has a die size of 335 mm² and a transistor count of 17,200 million, giving a density of 51.3 million transistors per mm². It is a mobile gaming GPU from the Radeon RX 6000 series. It has 40 RT cores and no tensor cores, while the GB10 has 48 RT cores and 384 tensor cores. The AMD part has a 192-bit GDDR6 memory interface, with 12 GB capacity.

The compute features differ strongly. The GB10 has 6144 shading units, 384 TMUs, and 48 ROPs. The RX 6850M XT has 2560 shading units, 160 TMUs, and 64 ROPs. The GB10 has a much higher texture rate and FP32, but the AMD has a higher pixel rate. The GB10 also has tensor cores, which the AMD lacks entirely, making the NVIDIA part suitable for AI workloads.

The process node differences are significant: 5 nm for the GB10 versus 7 nm for the AMD. This gives the GB10 a distinct efficiency advantage in terms of power-to-performance, though the AMD part has a lower TDP (165 W versus 140 W for the GB10). The GB10's TDP is lower despite its higher compute, which is a direct benefit of the newer process.

Specification Differences

The table below highlights the fields where the two GPUs differ in the database.

| Specification | NVIDIA GB10 | AMD Radeon RX 6850M XT |

| --- | --- | --- |

| Architecture | Blackwell 2.0 | RDNA 2.0 |

| Process Node | 5 nm | 7 nm |

| Die Size | 382 mm² | 335 mm² |

| Transistors | Unknown | 17,200 million |

| Transistor Density | Not listed | 51.3M / mm² |

| Base Clock | 1665 MHz | 2321 MHz |

| Boost Clock | 2418 MHz | 2581 MHz |

| Game Clock | Not listed | 2463 MHz |

| Memory Clock | 1067 MHz (8.5 Gbps effective) | 2250 MHz (18 Gbps effective) |

| Memory Size | 128 GB | 12 GB |

| Memory Type | LPDDR5X | GDDR6 |

| Memory Bus Width | 256 bit | 192 bit |

| Memory Bandwidth | 273.2 GB/s | 432.0 GB/s |

| Shading Units | 6144 | 2560 |

| TMUs | 384 | 160 |

| ROPs | 48 | 64 |

| RT Cores | 48 | 40 |

| Tensor Cores | 384 | None |

| Pixel Rate | 116.1 GPixel/s | 165.2 GPixel/s |

| Texture Rate | 928.5 GTexel/s | 413.0 GTexel/s |

| FP32 | 29.71 TFLOPS | 13.21 TFLOPS |

| FP16 | 29.71 TFLOPS (1:1) | 26.43 TFLOPS (2:1) |

| TDP | 140 W | 165 W |

| Suggested PSU | 300 W | Not listed |

| Bus Interface | PCIe 5.0 x16 | PCIe 4.0 x16 |

| Display Outputs | 1x HDMI | Portable Device Dependent |

| DirectX | N/A | 12 Ultimate (12_2) |

| OpenGL | N/A | 4.6 |

| Vulkan | N/A | 1.4 |

| Release Date | 2025-10-14 | 2022-01-03 |

| Production Status | Active | End-of-life |

| Predecessor | Server Hopper | Polaris Mobile |

| Successor | Server Rubin | None |

| Launch MSRP | 4,999 USD | None |

The NVIDIA GB10 has a newer release date, a newer architecture, and a higher transistor density (implied by the 5 nm process). The AMD RX 6850M XT has a higher boost clock, a higher memory bandwidth, and a higher pixel rate. The GB10 offers significantly more shading units, TMUs, and tensor cores, while the AMD has more ROPs and a higher FP16 rate in a 2:1 ratio. The GB10 also has a higher FP16 rate in a 1:1 ratio, making it more efficient for compute workloads. The AMD part has a higher TDP and no successor listed, while the GB10 has a clear successor in Server Rubin.