AMD Radeon PRO W7800 vs NVIDIA GB10 Comparison

The AMD Radeon PRO W7800 and NVIDIA GB10 occupy very different corners of the professional GPU market, and the benchmark data reflects that divide. In the two head-to-head benchmark tests available, the W7800 wins decisively, but the GB10 counters with a vastly larger memory pool and a much lower power envelope. The W7800 leads by 28.5% in Geekbench OpenCL and by a dominant 53% in Geekbench Vulkan, yet the GB10’s 128 GB of memory and integrated form factor tell a story that raw compute scores alone cannot capture.

Head-to-Head Benchmarks

The most striking separation between these two cards occurs in the Geekbench Vulkan test. The AMD Radeon PRO W7800 posts a score of 175,422, while the NVIDIA GB10 manages just 114,648. That is a 53% advantage for the W7800, a massive gap that indicates a fundamental difference in graphics API performance. Vulkan workloads often stress raw throughput and driver efficiency, and the data suggests the RDNA 3.0 architecture in the W7800 is far better suited to those tasks than the Blackwell 2.0 design in the GB10.

In Geekbench OpenCL, the margin narrows but still favors the W7800 substantially. The AMD card scores 154,366 against the GB10’s 120,137, a 28.5% lead. OpenCL is more compute-oriented than Vulkan, and while the GB10 closes some of the gap, it still trails by a significant margin. The W7800’s 45.25 TFLOPS of FP32 performance versus the GB10’s 29.71 TFLOPS explains much of this difference — the AMD card simply has more raw compute throughput available for general-purpose workloads.

Looking at the broader competitive landscape, the W7800 sits in a higher performance tier entirely. Its average benchmark score of 164,894 places it in the 97th percentile of all GPUs, while the GB10’s 117,393 lands it in the 95th percentile. The W7800’s nearest rivals include the NVIDIA RTX A5500 (165,217, just 0.2% ahead) and the RTX 4500 Ada Generation (166,094, 0.7% ahead), meaning the W7800 trades blows with professional cards that cost significantly more. The GB10, by contrast, competes with the RTX 4000 SFF Ada Generation (117,088, 0.3% behind) and the AMD Radeon PRO W7700 (118,976, 1.3% ahead), placing it in a decidedly more mainstream performance bracket.

The GB10 does have one clear advantage in this comparison: memory capacity. With 128 GB of LPDDR5X on a 256-bit bus, it offers four times the memory of the W7800’s 32 GB of GDDR6. However, that memory runs at just 273.2 GB/s of bandwidth, less than half the W7800’s 576.0 GB/s. This creates an interesting dynamic where the GB10 can hold far larger datasets but moves them much more slowly, while the W7800 moves smaller datasets at nearly twice the speed.

The Verdict

The data points to a clear split: professionals needing maximum compute performance should choose the AMD Radeon PRO W7800, while those prioritizing massive memory capacity and low power consumption should consider the NVIDIA GB10. The W7800 wins both benchmark tests outright, with a 28.5% lead in OpenCL and a 53% lead in Vulkan. Its 97th percentile ranking versus the GB10’s 95th percentile confirms that the AMD card is the stronger overall performer.

However, the GB10 is not without merit. Its 128 GB memory capacity is extraordinary for a card with a 140 W TDP — the W7800 draws 260 W. For workloads that require loading very large models or datasets that exceed 32 GB, the GB10’s capacity advantage could prove decisive, even if its compute throughput is lower. The GB10 also fits into an IGP (integrated graphics processor) form factor with no power connectors, making it suitable for dense server deployments where the W7800’s dual-slot, 2x 8-pin design would be impractical.

The launch MSRP for the AMD Radeon PRO W7800 is 2,499 USD, while the NVIDIA GB10 has a launch MSRP of 3,999 USD. That price difference, combined with the GB10’s lower benchmark scores, makes the W7800 the better choice for most compute-heavy workloads. But the GB10 targets a different use case — one where memory capacity and power efficiency trump raw speed. For AI inference with very large models, the GB10’s 128 GB pool is a compelling feature that no amount of TFLOPS can replace.

Architecture Differences

The two GPUs come from fundamentally different architectural lineages. The AMD Radeon PRO W7800 uses the Navi 31 chip built on RDNA 3.0 architecture, codenamed Plum Bonito, and belongs to the Radeon Pro Navi (Navi III Series) generation. The NVIDIA GB10 uses the GB20B chip on Blackwell 2.0 architecture and belongs to the Server Blackwell (Bxx) generation.

Both are manufactured on a 5 nm process at TSMC, but the similarities end there. The W7800 packs 57,700 million transistors on a 529 mm² die, yielding a transistor density of 109.1M per mm². The GB10’s transistor count is listed as unknown, but its die size is 382 mm² — significantly smaller than the W7800’s.

The memory architectures diverge sharply. The W7800 uses 32 GB of GDDR6 with a 256-bit bus and 576.0 GB/s of bandwidth, running at 2250 MHz (18 Gbps effective). The GB10 uses 128 GB of LPDDR5X, also on a 256-bit bus, but with only 273.2 GB/s of bandwidth and a memory clock of 1067 MHz (8.5 Gbps effective). This is a classic trade-off: GDDR6 prioritizes bandwidth, while LPDDR5X prioritizes capacity and power efficiency.

The compute resources also differ significantly. The W7800 has 4,480 shading units, 280 texture mapping units, 128 ROPs, and 70 ray tracing cores. The GB10 counters with 6,144 shading units, 384 TMUs, 48 ROPs, 48 RT cores, and 384 tensor cores. The GB10 has more shading units and TMUs, but the W7800 has nearly three times the ROPs. The GB10’s tensor cores are a notable addition — the W7800 has none listed — suggesting the NVIDIA card is designed for AI and machine learning workloads.

The API support tells a similar story. The W7800 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, making it a full-featured graphics card. The GB10 lists N/A for DirectX, OpenGL, and Vulkan, indicating it is not intended for traditional graphics rendering. The GB10’s display output is a single HDMI port, while the W7800 offers three DisplayPort 2.1 outputs plus one mini-DisplayPort 2.1.

Specification Differences

The most obvious specification difference is memory capacity: the GB10 offers 128 GB versus the W7800’s 32 GB, a 4x advantage. Memory type also differs — LPDDR5X on the GB10 versus GDDR6 on the W7800. Memory bandwidth heavily favors the W7800 at 576.0 GB/s versus 273.2 GB/s, a 2.1x difference.

Power consumption is another major differentiator. The W7800 has a TDP of 260 W and requires two 8-pin power connectors plus a 600 W suggested PSU. The GB10 has a 140 W TDP, no power connectors, and a 300 W suggested PSU. The GB10 is also an IGP form factor, while the W7800 is dual-slot. Physically, the W7800 measures 280 mm in length, 110 mm in height, and 40 mm in width; the GB10 is 150 mm by 51 mm by 150 mm.

Clock speeds favor the W7800, with a base clock of 1895 MHz and boost of 2525 MHz versus the GB10’s 1665 MHz base and 2418 MHz boost. The FP32 compute performance is 45.25 TFLOPS for the W7800 versus 29.71 TFLOPS for the GB10. FP16 performance shows a stark asymmetry: the W7800 hits 90.50 TFLOPS at a 2:1 ratio, while the GB10 manages 29.71 TFLOPS at a 1:1 ratio — meaning the AMD card has a dedicated path for FP16 throughput that the NVIDIA card lacks.

The PCIe interface also differs: the W7800 uses PCIe 4.0 x16, while the GB10 uses PCIe 5.0 x16, giving the NVIDIA card double the bus bandwidth in theory. The GB10’s release date is later (2025) versus the W7800’s 2023, and the GB10 lists a successor (Server Rubin) while the W7800 has none.

FAQ

Q: Which GPU wins in Geekbench OpenCL performance?

A: The AMD Radeon PRO W7800 wins with a score of 154,366 versus the NVIDIA GB10’s 120,137, a 28.5% advantage.

Q: How much more memory does the NVIDIA GB10 have?

A: The GB10 has 128 GB of LPDDR5X, which is four times the 32 GB of GDDR6 found in the AMD Radeon PRO W7800.

Q: What is the power consumption difference?

A: The AMD Radeon PRO W7800 has a 260 W TDP, while the NVIDIA GB10 draws only 140 W. The W7800 requires two 8-pin power connectors and a 600 W PSU, whereas the GB10 needs no power connectors and only a 300 W PSU.

Q: Does the NVIDIA GB10 support DirectX or Vulkan?

A: No. The GB10 lists N/A for DirectX, OpenGL, and Vulkan support. The AMD Radeon PRO W7800 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: Which card has higher memory bandwidth?

A: The AMD Radeon PRO W7800 has 576.0 GB/s of bandwidth, more than double the GB10’s 273.2 GB/s.

Q: How do these cards rank against all GPUs?

A: The AMD Radeon PRO W7800 is in the 97th percentile, while the NVIDIA GB10 is in the 95th percentile. The W7800’s average benchmark score is 164,894 versus 117,393 for the GB10.