AMD Radeon PRO W6400 vs NVIDIA T1000 8 GB Comparison

The AMD Radeon PRO W6400 and NVIDIA T1000 8 GB are both end-of-life, single-slot workstation graphics cards with a 50 W TDP, but they represent fundamentally different design philosophies. The data shows a clear split: the AMD card delivers higher raw compute throughput and wins the only shared benchmark, while the NVIDIA card counters with double the memory capacity and a wider memory bus. This analysis breaks down where each card holds an advantage based solely on the available benchmark and specification data.

Where Each One Wins

The benchmark results give the AMD Radeon PRO W6400 a definitive win in the single head-to-head test available. In Geekbench Vulkan, the W6400 scores 39286 against the T1000's 34561, a 13.7% advantage. This is the only direct comparison in the data, and it favors AMD. The W6400 also holds a higher percentile ranking among all GPUs, sitting at the 80th percentile versus the T1000's 79th. Its average benchmark score of 37157 across two tests (Geekbench OpenCL and Vulkan) further reinforces its compute-oriented strength.

The NVIDIA T1000 8 GB wins in memory capacity and interface flexibility. It offers 8 GB of GDDR6 memory, exactly double the W6400's 4 GB, on a 128-bit bus versus the W6400's 64-bit bus. This translates to 160.0 GB/s of memory bandwidth, 25% more than the AMD card's 128.0 GB/s. The T1000 also uses a PCIe 3.0 x16 interface, which provides more physical lanes than the W6400's PCIe 4.0 x4 connection. For workloads that require large datasets to reside in VRAM, the T1000 is the clear choice. The data does not include a direct OpenCL comparison, so the T1000's single Vulkan score of 34561 stands as its only benchmark entry.

Architecture Differences

The architectural gap between these two cards is substantial. The AMD Radeon PRO W6400 is built on the RDNA 2.0 architecture using a Navi 24 chip, manufactured on a 6 nm process at TSMC. It packs 5,400 million transistors into a 107 mm² die, achieving a transistor density of 50.5 million per square millimeter. In contrast, the NVIDIA T1000 uses the Turing architecture with a TU117 chip on a 12 nm process, also from TSMC. The T1000 has 4,700 million transistors spread across a much larger 200 mm² die, resulting in a density of just 23.5 million per square millimeter.

These process differences translate directly into clock speeds. The W6400 runs at a base clock of 2039 MHz and boosts to 2321 MHz, while the T1000 operates at a much lower 1065 MHz base and 1395 MHz boost. The AMD card's higher clocks, combined with its 768 shading units, deliver 3.565 TFLOPS of FP32 performance and 7.130 TFLOPS of FP16 (2:1 ratio). The T1000, despite having more shading units (896), 56 TMUs, and 32 ROPs, only reaches 2.500 TFLOPS FP32 and 5.000 TFLOPS FP16 due to its lower clock speeds.

Feature support also diverges. The W6400 includes 12 ray tracing cores and supports DirectX 12 Ultimate (12_2), while the T1000 has no ray tracing cores and only supports DirectX 12 (12_1). Both cards support OpenGL 4.6 and Vulkan 1.4. The W6400's pixel rate of 74.27 GPixel/s and texture rate of 111.4 GTexel/s are significantly higher than the T1000's 44.64 GPixel/s and 78.12 GTexel/s, respectively. The T1000 does offer more display outputs with four mini-DisplayPort 1.4a connectors versus the W6400's two DisplayPort 1.4a outputs.

Head-to-Head Benchmarks

The only direct benchmark comparison in the data is the Geekbench Vulkan test. Here, the AMD Radeon PRO W6400 scores 39286 points, while the NVIDIA T1000 8 GB scores 34561 points. This gives the AMD card a 13.7% lead. This is a substantial margin, indicating that in Vulkan-based workloads, the W6400's higher compute throughput and clock speeds provide a tangible advantage.

Looking at the nearest rivals for each card provides additional context. The W6400's average benchmark score of 37157 places it just 0.9% below the AMD Radeon RX Vega 56 (37507) and 1.3% below both the NVIDIA Tesla P4 (37628) and GeForce RTX 4070 (37648). It sits 1.7% above the GeForce GTX TITAN X (36530). This suggests the W6400 performs in the same tier as much larger and more power-hungry cards.

The T1000's average score of 34561 is nearly identical to the AMD Radeon HD 7970 (34541), just 0.1% behind. It is 0.4% below the NVIDIA A2 (34690) and 0.6% above the NVIDIA TITAN V (34355). The T1000 also sits 1.0% above the NVIDIA RTX A1000 (34207). These comparisons show that while the W6400 edges out the T1000 in raw score, both cards are positioned in a competitive mid-range segment where the differences between adjacent products are small.

FAQ

Q: Which card has higher raw compute performance?

A: The AMD Radeon PRO W6400 delivers 3.565 TFLOPS of FP32 performance and 7.130 TFLOPS of FP16, compared to the NVIDIA T1000's 2.500 TFLOPS FP32 and 5.000 TFLOPS FP16. The W6400 also wins the Geekbench Vulkan test with a 13.7% higher score.

Q: Does the NVIDIA T1000 have any advantages?

A: Yes, the T1000 has double the memory capacity at 8 GB versus 4 GB, and a wider 128-bit memory bus providing 160.0 GB/s bandwidth versus the W6400's 128.0 GB/s. It also offers four display outputs instead of two and uses a PCIe 3.0 x16 interface.

Q: How do their process nodes compare?

A: The W6400 uses a 6 nm TSMC process with 5,400 million transistors on a 107 mm² die, while the T1000 uses a 12 nm TSMC process with 4,700 million transistors on a 200 mm² die. The W6400's density is 50.5M transistors per mm² versus 23.5M for the T1000.

Q: Do both cards support ray tracing?

A: No. The AMD W6400 includes 12 ray tracing cores and supports DirectX 12 Ultimate (12_2). The NVIDIA T1000 has no ray tracing cores and only supports DirectX 12 (12_1).

Q: What are the clock speed differences?

A: The W6400 has a base clock of 2039 MHz and a boost clock of 2321 MHz. The T1000 has a base clock of 1065 MHz and a boost clock of 1395 MHz. The AMD card runs significantly faster.

Q: Which card has a higher percentile ranking among all GPUs?

A: The AMD Radeon PRO W6400 ranks at the 80th percentile, while the NVIDIA T1000 ranks at the 79th percentile. The W6400's average benchmark score is 37157 versus 34561 for the T1000.

The Verdict

The data provides a clear, albeit limited, picture. The AMD Radeon PRO W6400 is the superior choice for compute-intensive tasks that leverage Vulkan or OpenCL. Its 13.7% lead in the Geekbench Vulkan test, combined with higher pixel and texture rates, makes it the stronger performer in raw graphics processing. The 80th percentile ranking and the fact that it trades blows with cards like the RX Vega 56 and RTX 4070 in average score underscore its compute capability.

The NVIDIA T1000 8 GB is the better option for memory-bound workflows. Its 8 GB VRAM capacity is double that of the W6400, and its 160.0 GB/s bandwidth is 25% higher. The wider 128-bit bus and PCIe 3.0 x16 interface make it more suitable for large datasets that exceed 4 GB. The T1000's four mini-DisplayPort outputs also give it an edge in multi-display configurations.

For a user prioritizing raw computational speed and modern feature support like ray tracing, the AMD W6400 is the data-backed pick. For a user needing maximum VRAM capacity and memory bandwidth in a single-slot, 50 W package, the NVIDIA T1000 is the logical choice. The benchmark results do not include a direct OpenCL comparison, and the T1000's single Vulkan score is the only data point for that card, so the final decision should weigh the W6400's proven compute lead against the T1000's memory advantage.