AMD Radeon RX 7900M vs NVIDIA H20 NVL16 Comparison

FAQ

Q: How does the AMD Radeon RX 7900M compare to the NVIDIA H20 NVL16 in terms of average benchmark score?

A: The AMD Radeon RX 7900M has an average benchmark score of 97487, while the NVIDIA H20 NVL16 has no recorded benchmark scores in the database, resulting in an average score of 0.

Q: What is the memory capacity difference between these two GPUs?

A: The AMD Radeon RX 7900M features 16 GB of GDDR6 memory, while the NVIDIA H20 NVL16 has 96 GB of HBM3 memory.

Q: Which GPU has a higher transistor count?

A: The NVIDIA H20 NVL16 has 80,000 million transistors, whereas the AMD Radeon RX 7900M has 57,700 million transistors.

Q: What are the TDP ratings for both cards?

A: The AMD Radeon RX 7900M has a TDP of 180 W, while the NVIDIA H20 NVL16 has a TDP of 400 W.

Q: Which GPU supports PCIe 5.0?

A: The NVIDIA H20 NVL16 uses a PCIe 5.0 x16 bus interface, while the AMD Radeon RX 7900M uses PCIe 4.0 x16.

Q: What is the release date for each product?

A: The AMD Radeon RX 7900M was released on 2023-10-18, and the NVIDIA H20 NVL16 was released on 2025-09-01.

Architecture Differences

The AMD Radeon RX 7900M and the NVIDIA H20 NVL16 represent fundamentally different design philosophies within the same 5 nm process node, both fabricated by TSMC. The RX 7900M is built on the RDNA 3.0 architecture using the Navi 31 chip with the codename "Plum Bonito," part of the Navi Mobile (RX 7000M) generation. The H20 NVL16 uses the Hopper architecture with the GH100 chip, belonging to the Server Hopper (Hxx) generation.

The silicon characteristics show a clear divergence. The RX 7900M has a die size of 529 mm² with 57,700 million transistors, resulting in a transistor density of 109.1M per mm². The H20 NVL16 has a larger die at 814 mm², housing 80,000 million transistors with a lower density of 98.3M per mm². This indicates that AMD packs transistors more densely, while NVIDIA spreads them across a larger physical area.

Memory architecture differs substantially. The RX 7900M uses 16 GB of GDDR6 on a 256-bit bus, delivering 576.0 GB/s of bandwidth. The H20 NVL16 uses 96 GB of HBM3 on a 6144-bit bus, providing 4.03 TB/s of bandwidth. The HBM3 implementation gives the NVIDIA part a massive memory advantage in both capacity and bandwidth, suited for large data workloads.

Compute resources also diverge significantly. The RX 7900M has 4608 shading units, 288 TMUs, 192 ROPs, and 72 ray tracing cores. The H20 NVL16 has 9984 shading units, 312 TMUs, only 24 ROPs, and 312 tensor cores. The RX 7900M has no tensor cores listed, while the H20 NVL16 has no ray tracing cores listed. This reflects their different target markets: the RX 7900M emphasizes graphics rendering, while the H20 NVL16 focuses on tensor operations.

Clock speeds are close, with the RX 7900M running at 1825 MHz base and 2090 MHz boost, while the H20 NVL16 runs at 1830 MHz base and 1980 MHz boost. Memory clocks differ: the RX 7900M uses 2250 MHz (18 Gbps effective), while the H20 NVL16 uses 1313 MHz (5.3 Gbps effective). The effective bandwidth advantage of the H20 comes from its extremely wide bus rather than high clock speeds.

API support is another differentiator. The RX 7900M supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The H20 NVL16 lists N/A for DirectX, OpenGL, and Vulkan, indicating it is not designed for standard graphics API workloads.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark results between the AMD Radeon RX 7900M and the NVIDIA H20 NVL16. The RX 7900M has three recorded benchmarks, while the H20 NVL16 has none.

The RX 7900M achieves a score of 4201 in 3DMark Steel Nomad DX12, 129499 in Geekbench OpenCL, and 158760 in Geekbench Vulkan. These scores place it at the 94th percentile among all GPUs in the database. The H20 NVL16 sits at the 50th percentile with an average benchmark score of 0, reflecting the absence of recorded performance data.

Without direct comparison data, the relative performance must be inferred from architectural specifications and the RX 7900M's nearest rivals. The RX 7900M's nearest rival is the AMD Radeon Pro VII with an average score of 97131, a delta of 0.4%. The NVIDIA Quadro RTX 6000 scores 101872, which is 4.3% higher than the RX 7900M. The AMD Radeon Instinct MI60 scores 92466, 5.4% lower, and the NVIDIA RTX A4500 scores 91671, 6.3% lower.

The H20 NVL16 has no nearest rivals listed, making its competitive position impossible to quantify from the database. The absence of benchmark data for the H20 NVL16 means any performance comparison between these two specific cards cannot be made from recorded measurements.

From a raw compute perspective, the FP32 output is close: the RX 7900M delivers 38.52 TFLOPS, while the H20 NVL16 delivers 39.54 TFLOPS. FP16 performance is similarly matched at 77.05 TFLOPS for the RX 7900M and 79.07 TFLOPS for the H20 NVL16. The H20 NVL16 holds a slim lead in both metrics, but the difference is under 3%.

Pixel and texture rates tell a different story. The RX 7900M achieves 401.3 GPixel/s and 601.9 GTexel/s. The H20 NVL16 achieves 47.52 GPixel/s and 617.8 GTexel/s. The RX 7900M has a massive advantage in pixel throughput, over 8 times higher, while the H20 NVL16 has a slight edge in texture throughput.

Specification Differences

The two GPUs differ across nearly every specification category.

Process and silicon: Both use 5 nm TSMC, but the H20 NVL16 has 80,000 million transistors versus 57,700 million, and a die size of 814 mm² versus 529 mm². Transistor density favors the RX 7900M at 109.1M per mm² versus 98.3M per mm².

Clocks: Base clocks are nearly identical at 1825 MHz for the RX 7900M and 1830 MHz for the H20 NVL16. Boost clocks favor the RX 7900M at 2090 MHz versus 1980 MHz. Memory clocks differ at 2250 MHz for the RX 7900M and 1313 MHz for the H20 NVL16.

Memory: The RX 7900M has 16 GB GDDR6 on a 256-bit bus with 576.0 GB/s bandwidth. The H20 NVL16 has 96 GB HBM3 on a 6144-bit bus with 4.03 TB/s bandwidth.

Compute units: The RX 7900M has 4608 shading units, 288 TMUs, 192 ROPs, and 72 RT cores. The H20 NVL16 has 9984 shading units, 312 TMUs, 24 ROPs, 312 tensor cores, and no RT cores listed. The RX 7900M has no tensor cores listed.

Performance rates: FP32 is 38.52 TFLOPS for the RX 7900M and 39.54 TFLOPS for the H20 NVL16. FP16 is 77.05 TFLOPS for the RX 7900M and 79.07 TFLOPS for the H20 NVL16. Pixel rate is 401.3 GPixel/s for the RX 7900M versus 47.52 GPixel/s. Texture rate is 601.9 GTexel/s versus 617.8 GTexel/s.

Power and form factor: The RX 7900M has a TDP of 180 W and is an IGP with no power connectors. The H20 NVL16 has a TDP of 400 W, is an SXM Module, and has a suggested PSU of 800 W.

Bus interface: The RX 7900M uses PCIe 4.0 x16, while the H20 NVL16 uses PCIe 5.0 x16.

Display outputs: The RX 7900M has portable device dependent outputs. The H20 NVL16 has no outputs.

API support: The RX 7900M supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The H20 NVL16 lists N/A for all three.

Release timeline: The RX 7900M released on 2023-10-18. The H20 NVL16 released on 2025-09-01. The RX 7900M's predecessor is Polaris Mobile. The H20 NVL16's predecessor is Server Ada, and its successor is Server Blackwell.

Production status: Both are listed as Active.

The Verdict

The data describes two GPUs with almost no overlap in intended use. The AMD Radeon RX 7900M is a mobile graphics processor with full DirectX 12 Ultimate, OpenGL, and Vulkan support, 192 ROPs, and a 401.3 GPixel/s pixel rate. It is designed to drive displays and render graphics. The NVIDIA H20 NVL16 is a server module with no display outputs, no graphics API support, 24 ROPs, and a 47.52 GPixel/s pixel rate. It is built around 312 tensor cores and 96 GB of HBM3 memory.

The RX 7900M sits at the 94th percentile among all GPUs and has verified benchmark scores across three tests. The H20 NVL16 sits at the 50th percentile with no recorded benchmarks. Anyone evaluating these cards for graphics workloads should note that the H20 NVL16 cannot run standard graphics APIs at all, making it unsuitable for gaming, workstation rendering, or any DirectX or Vulkan application.

The H20 NVL16 offers 6 times the memory capacity, over 7 times the memory bandwidth, and more than double the shading units. Its tensor core count of 312 indicates a focus on compute and AI workloads. The RX 7900M offers a much higher pixel rate and a lower TDP of 180 W versus 400 W.

Users who need a GPU for gaming, content creation, or any graphics API workload should select the RX 7900M. Its benchmark scores confirm real-world performance in DX12, OpenCL, and Vulkan. Users who need massive memory capacity, tensor processing, and server deployment should select the H20 NVL16, with the caveat that its performance is unverified in the database.

Where Each One Wins

AMD Radeon RX 7900M wins in graphics rendering. Its 192 ROPs produce a pixel rate of 401.3 GPixel/s, over 8 times the H20 NVL16's 47.52 GPixel/s. Its support for DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4 makes it functional for standard graphics workloads, while the H20 NVL16 lists N/A for all three APIs.

AMD Radeon RX 7900M wins in verified performance data. The RX 7900M has three recorded benchmark scores (4201 in Steel Nomad DX12, 129499 in Geekbench OpenCL, 158760 in Geekbench Vulkan) and a 94th percentile ranking. The H20 NVL16 has no benchmarks and a 50th percentile ranking.

AMD Radeon RX 7900M wins in power efficiency. At 180 W TDP, it consumes less than half the power of the H20 NVL16's 400 W. The RX 7900M also requires no dedicated power connectors, while the H20 NVL16 suggests an 800 W PSU.

AMD Radeon RX 7900M wins in pixel throughput. The 401.3 GPixel/s rate is substantially higher than the 47.52 GPixel/s of the H20 NVL16, reflecting its ROP count of 192 versus 24.

AMD Radeon RX 7900M wins in transistor density. It packs 109.1M transistors per mm² versus the H20 NVL16's 98.3M per mm², despite the H20 having more total transistors.

NVIDIA H20 NVL16 wins in memory capacity. Its 96 GB of HBM3 is 6 times the RX 7900M's 16 GB of GDDR6.

NVIDIA H20 NVL16 wins in memory bandwidth. Its 4.03 TB/s bandwidth is approximately 7 times the RX 7900M's 576.0 GB/s, enabled by the 6144-bit bus.

NVIDIA H20 NVL16 wins in compute unit count. It has 9984 shading units versus 4608, and 312 TMUs versus 288. It also has 312 tensor cores, a feature the RX 7900M does not list.

NVIDIA H20 NVL16 wins in raw FP32 and FP16 throughput. It delivers 39.54 TFLOPS FP32 and 79.07 TFLOPS FP16, slightly ahead of the RX 7900M's 38.52 and 77.05 TFLOPS respectively.

NVIDIA H20 NVL16 wins in texture rate. Its 617.8 GTexel/s edges out the RX 7900M's 601.9 GTexel/s.

NVIDIA H20 NVL16 wins in bus interface generation. It uses PCIe 5.0 x16 versus PCIe 4.0 x16 on the RX 7900M.

NVIDIA H20 NVL16 wins in total transistor count. At 80,000 million, it has roughly 39% more transistors than the RX 7900M's 57,700 million.