AMD Radeon RX 6850M XT vs NVIDIA B200 Comparison

Head-to-Head Benchmarks

The database contains a single direct benchmark comparison between the NVIDIA B200 and the AMD Radeon RX 6850M XT: the Geekbench OpenCL test. In this workload, the NVIDIA B200 records a score of 345,482, while the AMD Radeon RX 6850M XT manages 85,040. That is a delta of 306.3%, meaning the B200 is roughly four times faster in raw OpenCL compute throughput. This is not a marginal victory; it is a categorical one. The B200's OpenCL result also places it at the 100th percentile of all GPUs in the database, whereas the RX 6850M XT sits at the 92nd percentile.

Context matters here. The B200's nearest rivals in the database include the NVIDIA B300 SXM6 AC, which scores 369,831 (6.6% higher), and the NVIDIA H200 NVL, which scores 334,891 (3.2% lower). The AMD Instinct MI300X trails the B200 by 8.6%, and the NVIDIA L40S is 16.8% behind. These are all enterprise or data-center class accelerators. By contrast, the RX 6850M XT's nearest rivals are a mixed bag: the NVIDIA Tesla P100 PCIe 12 GB scores 79,396 (0.6% lower), the Tesla P100 PCIe 16 GB scores 79,605 (0.8% lower), the GeForce RTX 5090 scores 79,842 (1.1% lower), and the GeForce RTX 5090 D scores 77,712 (1.6% higher). The RX 6850M XT is therefore clustered with a group of much older or consumer-oriented GPUs in terms of average benchmark score, which underscores the enormous performance gap between the two products in this comparison.

The head-to-head result is the only overlapping benchmark in the database, so the analysis must lean heavily on it. The B200 wins the single comparison, and the win tally reflects that: one win for NVIDIA, zero for AMD. There is no 3DMark Steel Nomad result for the B200, and no Geekbench Vulkan or Metal results for the B200, so those RX 6850M XT scores (2,257 in Steel Nomad DX12, 128,981 in Metal, 99,483 in Vulkan) cannot be directly compared. The OpenCL delta is the sole quantitative bridge, and it is decisive.

Where Each One Wins

Given the available data, the NVIDIA B200 wins the only directly comparable workload: Geekbench OpenCL. That benchmark is a general-purpose compute test, heavily weighted toward raw floating-point throughput and memory bandwidth scaling. The B200's architecture is built for exactly that kind of load, and the score reflects it. In any scenario where the workload is OpenCL-based and can utilize the full accelerator, the B200 is the clear choice.

The AMD Radeon RX 6850M XT, however, holds advantages in areas the database does not directly pit against the B200. It has a 3DMark Steel Nomad DX12 score of 2,257, which indicates it can run modern DirectX 12 Ultimate workloads, including ray tracing (it has 40 RT cores). It also produces a Geekbench Metal score of 128,981 and a Vulkan score of 99,483, both of which are respectable for a mobile GPU. The B200 has no recorded DirectX, OpenGL, or Vulkan API support in the database, and it has no display outputs. Therefore, for any interactive graphics, gaming, or client-side rendering task, the RX 6850M XT is the only one of the two that is even nominally suited. The B200 is a server accelerator with no video outputs, so it cannot drive a display at all.

The use-case split is stark. The B200 is for compute-centric, data-center deployments where OpenCL performance is paramount. The RX 6850M XT is for portable, graphics-oriented systems where API coverage and display connectivity matter. The database shows no scenario in which the AMD part beats the NVIDIA part in a shared test, but the AMD part wins by virtue of being the only one that can handle graphics workloads at all.

FAQ

Q: How much faster is the NVIDIA B200 than the AMD Radeon RX 6850M XT in the only shared benchmark?

A: In Geekbench OpenCL, the B200 scores 345,482 versus 85,040 for the RX 6850M XT, a delta of 306.3%.

Q: Does the AMD Radeon RX 6850M XT win any head-to-head benchmark against the NVIDIA B200?

A: No. The database records one head-to-head test, and the B200 wins it. The win tally is 1 for NVIDIA, 0 for AMD.

Q: What is the percentile ranking of each GPU in the database?

A: The NVIDIA B200 is at the 100th percentile of all GPUs, while the AMD Radeon RX 6850M XT is at the 92nd percentile.

Q: Which GPUs are closest to the NVIDIA B200 in average benchmark score?

A: The NVIDIA B300 SXM6 AC is 6.6% higher, the NVIDIA H200 NVL is 3.2% lower, the AMD Instinct MI300X is 8.6% lower, and the NVIDIA L40S is 16.8% lower.

Q: Which GPUs are closest to the AMD Radeon RX 6850M XT in average benchmark score?

A: The NVIDIA Tesla P100 PCIe 12 GB is 0.6% lower, the Tesla P100 PCIe 16 GB is 0.8% lower, the GeForce RTX 5090 is 1.1% lower, and the GeForce RTX 5090 D is 1.6% higher.

Q: Can the NVIDIA B200 output video to a display?

A: No. The database lists the B200's display outputs as "No outputs," whereas the RX 6850M XT's outputs are "Portable Device Dependent."

Specification Differences

The two GPUs diverge sharply on nearly every specification. The NVIDIA B200 is built on a 5 nm process at TSMC, while the AMD Radeon RX 6850M XT uses a 7 nm process, also at TSMC. Transistor counts differ by an order of magnitude: the B200 integrates 104,000 million transistors, while the RX 6850M XT has 17,200 million. The AMD part has a die size of 335 mm² and a transistor density of 51.3M per mm²; the B200 lists no die size or density.

Memory configurations are radically different. The B200 has 90 GB of HBM3e on a 4096-bit bus, yielding 4.10 TB/s of bandwidth. The RX 6850M XT has 12 GB of GDDR6 on a 192-bit bus, yielding 432.0 GB/s. The B200's memory clock is listed as 2000 MHz with 8 Gbps effective, while the AMD part runs at 2250 MHz with 18 Gbps effective. Clock speeds for the cores also differ: the B200 has a base of 700 MHz and a boost of 1965 MHz, while the RX 6850M XT has a base of 2321 MHz, a game clock of 2463 MHz, and a boost of 2581 MHz.

Compute resources are not comparable. The B200 has 18,944 shading units, 592 TMUs, 24 ROPs, and 592 tensor cores. The RX 6850M XT has 2,560 shading units, 160 TMUs, 64 ROPs, and 40 ray-tracing cores. The B200 has no listed RT cores, and the AMD part has no tensor cores. Pixel and texture rates follow suit: the B200 produces 47.16 GPixel/s and 1,163.3 GTexel/s, while the RX 6850M XT produces 165.2 GPixel/s and 413.0 GTexel/s. Floating-point performance is heavily lopsided: the B200 delivers 74.45 TFLOPS FP32 and 1,191.2 TFLOPS FP16 (16:1), while the RX 6850M XT delivers 13.21 TFLOPS FP32 and 26.43 TFLOPS FP16 (2:1).

Power and form factor differ completely. The B200 has a TDP of 1000 W and is an SXM Module, while the RX 6850M XT has a TDP of 165 W and is an IGP. The B200 has a suggested PSU of 1400 W, while the AMD part lists no suggested PSU. The B200 uses PCIe 5.0 x16, the RX 6850M XT uses PCIe 4.0 x16. The B200 has no power connectors listed, and the AMD part has "None." API support also differs: the RX 6850M XT supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, while the B200 lists null values for all three.

Architecture Differences

The NVIDIA B200 is based on the GB100 chip and the Blackwell architecture, categorized under the "Server Blackwell (Bxx)" generation. The AMD Radeon RX 6850M XT is based on the Navi 22 chip and the RDNA 2.0 architecture, under the "Navi Mobile (RX 6000M)" generation. The B200's predecessor is listed as "Server Hopper," and its successor is "Server Rubin." The RX 6850M XT's predecessor is "Polaris Mobile," with no successor listed. The B200 is marked as active in production; the RX 6850M XT is marked as end-of-life. The AMD part has a release date of January 3, 2022; the B200 has no release date in the database.

The architectural intent is clear from the data. Blackwell is a data-center compute architecture with massive memory capacity (90 GB), a 4096-bit bus, and tensor cores for AI workloads. RDNA 2.0 is a graphics-first architecture for mobile devices, with ray-tracing cores, a full modern API stack, and display output capability. The B200 has no display outputs, no API support listed, and no RT cores, which makes it unsuitable for client-side graphics. The RX 6850M XT has no tensor cores, which limits its AI acceleration capabilities relative to the B200.

The B200's transistor count of 104,000 million is roughly six times that of the RX 6850M XT, and its memory bandwidth of 4.10 TB/s is nearly ten times higher. The FP16 throughput figures highlight the architectural split: the B200's 1,191.2 TFLOPS (16:1 ratio) indicates a design where FP16 is heavily prioritized, likely for tensor-heavy operations, while the RX 6850M XT's 26.43 TFLOPS (2:1 ratio) shows a more balanced FP16/FP32 approach typical of graphics-oriented GPUs. These differences are not incidental; they reflect two entirely different product categories that happen to share the "GPU" label.