AMD Radeon RX 7900M vs NVIDIA B200 Comparison

Head-to-Head Benchmarks

The only directly comparable benchmark recorded in the database is Geekbench OpenCL, and the result is decisively one-sided. The NVIDIA B200 scores 345,482, while the AMD Radeon RX 7900M scores 129,499. That represents a 166.8% advantage for the B200, meaning it delivers more than two and a half times the raw compute throughput in this particular OpenCL workload.

To put that margin into perspective, the B200 sits at the 100th percentile among all GPUs in the database, which is the top possible ranking. The RX 7900M, by contrast, sits at the 94th percentile, which is still a strong position but clearly a tier below the absolute ceiling. The gap between these two is not a matter of fine margins; it is a chasm in raw compute output.

Looking at the B200's closest rivals helps contextualize just how far ahead it is. The NVIDIA H200 NVL averages 334,891, which is 3.2% behind the B200. The AMD Instinct MI300X averages 317,994, which is 8.6% behind. Even the NVIDIA L40S, a formidable workstation part, averages 295,763, a 16.8% deficit. The only GPU in the B200's immediate vicinity that beats it is the NVIDIA B300 SXM6 AC, which averages 369,831, putting it 6.6% ahead. So the B200 is not just faster than the RX 7900M; it is at the very frontier of what the database records, with only one direct successor-class part ahead of it.

The RX 7900M's own rival set tells a different story. Its average benchmark score across all recorded tests is 97,487. The AMD Radeon Pro VII averages 97,131, a mere 0.4% behind, meaning the two are effectively neck-and-neck. The NVIDIA Quadro RTX 6000 averages 101,872, which is 4.3% ahead of the 7900M. The AMD Radeon Instinct MI60 averages 92,466, 5.4% behind, and the NVIDIA RTX A4500 averages 91,671, 6.3% behind. The 7900M is competitive within its own peer group, but that peer group is operating at a fundamentally different performance level than the B200's peer group.

The database also records additional benchmarks for the RX 7900M that have no B200 counterpart. In 3DMark Steel Nomad DX12, it scores 4,201. In Geekbench Vulkan, it scores 158,760. These results show that the 7900M has strengths beyond OpenCL, particularly in Vulkan where it outperforms its own OpenCL score by over 22%. However, since the B200 has no recorded scores in those tests, a direct comparison is not possible from the available data.

Where Each One Wins

The NVIDIA B200 wins in every head-to-head comparison available in the database. It claims the sole direct benchmark victory, and its overall performance profile places it in a completely different category. The B200 is designed for server and datacenter workloads, as indicated by its SXM Module slot width and lack of display outputs. It is a compute-first part with no video output capability whatsoever, which means it is not intended for any traditional graphics or gaming use case. Its 74.45 TFLOPS of FP32 performance and 1,191.2 TFLOPS of FP16 performance (at a 16:1 ratio) make it a monster for parallel compute tasks such as AI inference, scientific simulation, and large-scale data processing.

The AMD Radeon RX 7900M, by contrast, is a mobile graphics processor, as indicated by its "IGP" slot width and its release date of October 18, 2023. It is built for laptops and portable devices, with display outputs described as "Portable Device Dependent." It supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, meaning it can handle modern gaming and graphics workloads. Its 38.52 TFLOPS of FP32 and 77.05 TFLOPS of FP16 (at a 2:1 ratio) are substantial for a mobile part, and its 192 ROPs give it strong pixel throughput at 401.3 GPixel/s, which is actually higher than the B200's 47.16 GPixel/s.

So the split is clear: the B200 wins on raw compute and is purpose-built for server environments, while the 7900M wins on portability, graphics API support, and pixel rendering capabilities. The B200 has no display outputs, making it useless for any interactive graphics scenario, whereas the 7900M is explicitly designed for exactly that. In terms of benchmark wins, the database records one win for the B200 and zero for the 7900M in direct head-to-head tests, but the 7900M's additional Vulkan and DX12 scores show it is a versatile graphics solution in its own right.

FAQ

Q: How much faster is the NVIDIA B200 than the AMD Radeon RX 7900M in the shared benchmark?

A: In the Geekbench OpenCL test, the B200 scores 345,482 compared to the 7900M's 129,499. This gives the B200 a 166.8% advantage, meaning it is more than two and a half times faster in this specific workload.

Q: What is the closest competitor to the NVIDIA B200 according to the database?

A: The closest rival is the NVIDIA H200 NVL, which averages 334,891, just 3.2% behind the B200. The only GPU that beats the B200 in its immediate rival group is the NVIDIA B300 SXM6 AC, which averages 369,831, or 6.6% ahead.

Q: How does the AMD Radeon RX 7900M compare to its own nearest rivals?

A: The 7900M averages 97,487 across all recorded benchmarks. Its closest rival is the AMD Radeon Pro VII at 97,131, which is only 0.4% behind. The NVIDIA Quadro RTX 6000 leads the group at 101,872, 4.3% ahead.

Q: Does the AMD Radeon RX 7900M have any benchmarks the NVIDIA B200 does not?

A: Yes. The 7900M has recorded scores in 3DMark Steel Nomad DX12 (4,201) and Geekbench Vulkan (158,760). The B200 has no recorded scores in these tests, so no direct comparison is possible.

Q: Which GPU has higher pixel throughput?

A: The AMD Radeon RX 7900M has a pixel rate of 401.3 GPixel/s, which is significantly higher than the NVIDIA B200's 47.16 GPixel/s. This reflects the 7900M's graphics-focused design versus the B200's compute-focused design.

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

A: The NVIDIA B200 is at the 100th percentile among all GPUs, meaning it ranks above every other recorded part. The AMD Radeon RX 7900M is at the 94th percentile, which places it in the top 6% of all GPUs but still well below the B200.

Specification Differences

The two GPUs differ dramatically across nearly every specification category. The NVIDIA B200 uses 90 GB of HBM3e memory on a 4096-bit bus, delivering 4.10 TB/s of bandwidth. The AMD Radeon RX 7900M uses 16 GB of GDDR6 memory on a 256-bit bus, delivering 576.0 GB/s. The B200 has over five times the memory capacity and over seven times the bandwidth.

Clock speeds also differ substantially. The B200 has a base clock of 700 MHz and a boost clock of 1965 MHz, while the 7900M has a base clock of 1825 MHz and a boost clock of 2090 MHz. The 7900M runs at much higher clocks, but the B200 compensates with far more execution units.

The B200 has 18,944 shading units, 592 TMUs, and 24 ROPs. The 7900M has 4,608 shading units, 288 TMUs, and 192 ROPs. The B200 has more than four times the shading units and more than double the TMUs, but the 7900M has eight times the ROPs.

Power consumption is another major divider. The B200 has a TDP of 1000 W and requires a 1400 W power supply, while the 7900M has a TDP of 180 W and no power connectors, as it is an integrated graphics processor for mobile devices. The B200 uses a PCIe 5.0 x16 interface, while the 7900M uses PCIe 4.0 x16.

The B200 has no display outputs, while the 7900M's outputs are described as "Portable Device Dependent." The B200 is an SXM Module, whereas the 7900M is an IGP. The B200 supports no graphics APIs in the database, while the 7900M supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. The B200 has no launch MSRP recorded, and neither does the 7900M.

Architecture Differences

The NVIDIA B200 is built on the Blackwell architecture using the GB100 chip, manufactured on a 5 nm process at TSMC. It contains 104,000 million transistors. The architecture is designed for server deployments, as indicated by its generation label "Server Blackwell (Bxx)." Its predecessor is listed as Server Hopper, and its successor is Server Rubin. It includes 592 tensor cores, which are absent from the 7900M's specification sheet, reflecting its AI and deep learning focus. The B200 has no RT cores listed in the database.

The AMD Radeon RX 7900M is built on the RDNA 3.0 architecture using the Navi 31 chip, also manufactured on a 5 nm process at TSMC. It contains 57,700 million transistors on a 529 mm² die, with a transistor density of 109.1 million per mm². Its codename is Plum Bonito, and it belongs to the Navi Mobile (RX 7000M) generation. Its predecessor is listed as Polaris Mobile. The 7900M includes 72 RT cores, which support hardware ray tracing, a feature not listed for the B200.

The transistor count difference is stark: the B200 packs 104 billion transistors, nearly double the 7900M's 57.7 billion. The B200's FP16 performance of 1,191.2 TFLOPS is achieved at a 16:1 ratio, indicating a design heavily optimized for matrix math and tensor operations. The 7900M's FP16 performance of 77.05 TFLOPS at a 2:1 ratio shows a more balanced approach between compute and graphics.

The B200 has no recorded die size, while the 7900M's die is 529 mm². The B200's memory clock is listed at 2000 MHz with 8 Gbps effective speed, while the 7900M's memory clock is 2250 MHz with 18 Gbps effective speed. The B200's texture rate is 1,163.3 GTexel/s, nearly double the 7900M's 601.9 GTexel/s, while the 7900M's pixel rate of 401.3 GPixel/s is over eight times higher than the B200's 47.16 GPixel/s.

Both GPUs are currently marked as "Active" in production status. The B200 has no release date recorded, while the 7900M was released on October 18, 2023. The architectural philosophies are diametrically opposed: the B200 is a massive, power-hungry compute accelerator with no graphics output, while the 7900M is a power-efficient mobile graphics processor with full API support and ray tracing capabilities.