AMD Radeon Pro W6600X vs NVIDIA GB10 Comparison

Head-to-Head Benchmarks

The data presents two very different performance profiles. The NVIDIA GB10 delivers an average benchmark score of 117,393, while the AMD Radeon Pro W6600X averages 107,342. That places the GB10 roughly 9.4% ahead in overall average score. However, the comparison is not straightforward because the two cards were tested with different benchmark suites: the GB10 was evaluated in Geekbench OpenCL and Vulkan, while the W6600X was tested in Geekbench Metal.

In the GB10's strongest workload, Geekbench OpenCL, it scores 120,137. Its Vulkan score is 114,648. The W6600X's single recorded benchmark, Geekbench Metal, returns 107,342. The gap between the GB10's OpenCL result and the W6600X's Metal score is 12,795 points, or approximately 11.9% in favor of the NVIDIA part. The GB10's Vulkan score still leads the W6600X by 7,306 points, roughly 6.8% ahead.

Looking at the nearest rivals for each card gives additional context. The GB10's closest competitor is the NVIDIA RTX 4000 SFF Ada Generation, which averages 117,088 — the GB10 leads it by a mere 0.3%. The GB10 also edges out the AMD Radeon PRO W7700 (118,976 average) by 1.3%, and the NVIDIA Tesla V100 SXM2 16 GB (114,395) by 2.6%. The RTX A5500 Mobile (113,944) trails the GB10 by 3.0%.

The W6600X's rival set is different. It sits 0.6% ahead of the AMD Radeon Pro Vega II Duo (106,750), but 2.1% behind the AMD Radeon Pro Vega II (109,617) and 3.1% behind the AMD Radeon PRO W7900 (110,725). The W6600X does clear the NVIDIA Quadro RTX 6000 (101,872) by 5.4%. These deltas show that the W6600X, despite being an older part, holds its own within its own generation of workstation GPUs, while the GB10 competes against much newer silicon.

In raw throughput metrics, the GB10 also has a significant theoretical advantage. Its FP32 compute is rated at 29.71 TFLOPS versus 10.15 TFLOPS for the W6600X — a difference of nearly three times. The pixel rate tells the opposite story: the W6600X achieves 158.7 GPixel/s while the GB10 manages 116.1 GPixel/s, a 36.7% advantage for the AMD part in fill-rate-bound work. Texture rate favors the GB10 at 928.5 GTexel/s versus 317.3 GTexel/s for the W6600X, a 192.6% gap.

The Verdict

The data supports a clear split by workload type. The NVIDIA GB10 is the stronger compute card. Its FP32 output of 29.71 TFLOPS dwarfs the W6600X's 10.15 TFLOPS. Its texture rate is nearly triple. Its memory capacity is 128 GB versus 8 GB. For any task that scales with raw shader throughput, large datasets, or texture-heavy rendering, the GB10 is the obvious choice from these numbers.

The AMD Radeon Pro W6600X wins in pixel throughput. At 158.7 GPixel/s, it outperforms the GB10's 116.1 GPixel/s by a substantial margin. That makes it the better option for pure rasterization fill-rate workloads, such as high-resolution framebuffer operations or certain post-processing effects. It also has a lower TDP at 120 W versus 140 W, though both cards suggest the same 300 W PSU.

The release timing matters for context. The GB10 launched in October 2025, while the W6600X arrived in August 2021. The GB10 is an active product; the W6600X is end-of-life. The GB10 also carries a launch MSRP of 3,999 USD. The W6600X carried a launch MSRP of 699 USD. Neither of these prices is discussed further, but they frame the generational positioning.

For a buyer choosing in 2025, the GB10 is the data-backed pick for general compute, AI-adjacent tasks, and high-bandwidth memory workloads. The W6600X remains relevant only for specific pixel-bound tasks where its fill-rate advantage matters more than compute throughput. The W6600X's 94th percentile versus the GB10's 95th percentile across all GPUs shows they are close in overall standing, but the GB10's benchmark scores are consistently higher in the tests recorded.

Architecture Differences

The two GPUs come from completely different architectural lineages. The NVIDIA GB10 uses the Blackwell 2.0 architecture, built on a 5 nm process at TSMC. Its die size is 382 mm². The AMD Radeon Pro W6600X uses RDNA 2.0, fabricated on a 7 nm process, also at TSMC. Its die is 237 mm² with 11,060 million transistors, giving a transistor density of 46.7M per mm². The GB10's transistor count is listed as unknown.

The memory subsystems diverge sharply. The GB10 has 128 GB of LPDDR5X across a 256-bit bus, achieving 273.2 GB/s of bandwidth. The W6600X has 8 GB of GDDR6 across a 128-bit bus, delivering 256.0 GB/s. Despite having 16 times the capacity, the GB10 only manages 6.7% more bandwidth. This suggests the GB10 is designed for capacity-hungry workloads rather than raw memory speed.

The compute configurations reflect different design philosophies. The GB10 packs 6,144 shading units, 384 TMUs, 48 ROPs, 48 ray tracing cores, and 384 tensor cores. The W6600X has 2,048 shading units, 128 TMUs, 64 ROPs, and 32 ray tracing cores — but no tensor cores. The GB10's tensor core count of 384 indicates a focus on matrix operations, while the W6600X's higher ROP count (64 versus 48) explains its pixel-rate advantage.

Clock speeds are comparable. The GB10 runs at 1665 MHz base and 2418 MHz boost. The W6600X runs higher at 2068 MHz base and 2479 MHz boost. The W6600X's higher base clock contributes to its fill-rate edge, while the GB10's larger shader array compensates with more parallel throughput.

The API support differs completely. The GB10 lists DirectX, OpenGL, and Vulkan as N/A. The W6600X supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. This is a critical distinction: the GB10 appears to have no graphics API support in the data, while the W6600X is a fully featured graphics card. The GB10's display output is a single HDMI port; the W6600X has no display outputs at all, indicating it is meant for compute-only or headless operation.

Physical design also differs. The GB10 is an integrated GPU (IGP) with a slot width of IGP, no power connectors, and dimensions of 150 mm by 51 mm by 150 mm. The W6600X is a dual-slot card with an Apple MPX bus interface. The GB10 uses PCIe 5.0 x16; the W6600X uses Apple's proprietary MPX connector.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The NVIDIA GB10 delivers 29.71 TFLOPS of FP32, which is nearly three times the 10.15 TFLOPS of the AMD Radeon Pro W6600X.

Q: How do their memory capacities compare?

A: The GB10 has 128 GB of LPDDR5X, while the W6600X has 8 GB of GDDR6. The GB10 offers 16 times the capacity, though its bandwidth advantage is smaller at 273.2 GB/s versus 256.0 GB/s.

Q: Which card supports more graphics APIs?

A: The W6600X supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. The GB10 lists all three APIs as N/A, indicating no graphics API support in the data.

Q: What is the pixel fill-rate difference?

A: The W6600X achieves 158.7 GPixel/s, which is 36.7% higher than the GB10's 116.1 GPixel/s. This makes the AMD card better suited for pure rasterization fill-rate tasks.

Q: How do their benchmark scores compare to their respective rivals?

A: The GB10's average score of 117,393 places it 0.3% ahead of the RTX 4000 SFF Ada Generation and 1.3% ahead of the Radeon PRO W7700. The W6600X's average of 107,342 puts it 0.6% ahead of the Radeon Pro Vega II Duo but 2.1% behind the Radeon Pro Vega II.

Q: What are the production statuses of these cards?

A: The GB10 is listed as Active, while the W6600X is End-of-life. The GB10 was released in October 2025; the W6600X was released in August 2021.

Where Each One Wins

The NVIDIA GB10 wins decisively in compute-heavy scenarios. Its FP32 output of 29.71 TFLOPS versus 10.15 TFLOPS gives it a 192.6% advantage in raw shader throughput. Its texture rate of 928.5 GTexel/s versus 317.3 GTexel/s represents a 192.6% lead in texture-bound work. The 128 GB memory capacity is unmatched for large dataset residency, and the 384 tensor cores provide dedicated hardware for matrix operations that the W6600X lacks entirely. The GB10's benchmark scores reflect this: 120,137 in OpenCL and 114,648 in Vulkan, both above the W6600X's 107,342 Metal score.

The AMD Radeon Pro W6600X wins in pixel fill-rate. Its 158.7 GPixel/s versus 116.1 GPixel/s gives it a 36.7% advantage in scenarios bound by ROP output. Its higher base clock of 2068 MHz versus 1665 MHz helps sustain that fill-rate advantage over time. The W6600X also supports full graphics APIs, making it functional for DirectX 12 Ultimate and Vulkan workloads where the GB10 has no API support. Its 64 ROPs versus 48 ROPs is the structural reason for this win. For a display-less compute card, the W6600X still manages to be the better graphics card due to its API compatibility.

The GB10 also wins on bandwidth efficiency in terms of capacity per watt. At 140 W TDP, it delivers 128 GB of memory and 273.2 GB/s. The W6600X at 120 W delivers 8 GB and 256.0 GB/s. The GB10's power efficiency for memory capacity is dramatically better, though its raw bandwidth per watt is only slightly higher (1.95 GB/s per watt versus 2.13 GB/s per watt for the W6600X).

Specification Differences

Process node: GB10 uses 5 nm; W6600X uses 7 nm.

Die size: GB10 is 382 mm²; W6600X is 237 mm².

Transistors: GB10 is unknown; W6600X has 11,060 million.

Transistor density: GB10 is not listed; W6600X has 46.7M per mm².

Base clock: GB10 runs at 1665 MHz; W6600X runs at 2068 MHz.

Boost clock: GB10 runs at 2418 MHz; W6600X runs at 2479 MHz.

Memory size: GB10 has 128 GB; W6600X has 8 GB.

Memory type: GB10 uses LPDDR5X; W6600X uses GDDR6.

Memory bus: GB10 uses 256-bit; W6600X uses 128-bit.

Memory bandwidth: GB10 achieves 273.2 GB/s; W6600X achieves 256.0 GB/s.

Shading units: GB10 has 6,144; W6600X has 2,048.

TMUs: GB10 has 384; W6600X has 128.

ROPs: GB10 has 48; W6600X has 64.

Ray tracing cores: GB10 has 48; W6600X has 32.

Tensor cores: GB10 has 384; W6600X has none.

Pixel rate: GB10 is 116.1 GPixel/s; W6600X is 158.7 GPixel/s.

Texture rate: GB10 is 928.5 GTexel/s; W6600X is 317.3 GTexel/s.

FP32: GB10 is 29.71 TFLOPS; W6600X is 10.15 TFLOPS.

FP16: GB10 is 29.71 TFLOPS (1:1); W6600X is 20.31 TFLOPS (2:1).

TDP: GB10 is 140 W; W6600X is 120 W.

Slot width: GB10 is IGP; W6600X is dual-slot.

Bus interface: GB10 uses PCIe 5.0 x16; W6600X uses Apple MPX.

Display outputs: GB10 has 1x HDMI; W6600X has none.

API support: GB10 lists all APIs as N/A; W6600X supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4.

Production status: GB10 is Active; W6600X is End-of-life.

Release date: GB10 launched October 2025; W6600X launched August 2021.