AMD Radeon Pro Vega 64X vs NVIDIA Quadro RTX 6000 Comparison

The NVIDIA Quadro RTX 6000 and the AMD Radeon Pro Vega 64X are both end-of-life professional workstation GPUs, but they represent fundamentally different design philosophies. The data shows a clear split: the AMD card wins the only direct benchmark comparison, yet the NVIDIA card commands a significantly higher average score across its broader test suite. This analysis breaks down the head-to-head data, architectural differences, and specific use-case advantages to determine which card leads in each scenario.

Head-to-Head Benchmarks

In the single directly comparable benchmark, the Geekbench OpenCL test, the AMD Radeon Pro Vega 64X emerges victorious. The AMD card scores 78,467, while the NVIDIA Quadro RTX 6000 trails with a score of 74,179. This translates to a -5.5% delta for the NVIDIA card, meaning the AMD card is 5.5% faster in this specific compute workload. This is a notable win for AMD, especially considering the architectural gulf between the two—the Vega 64X uses the older GCN 5.0 architecture and a 14 nm process node, yet still outpaces the newer Turing design on this raw compute metric.

However, the broader benchmark picture tells a different story. The NVIDIA Quadro RTX 6000 has an average benchmark score of 101,872 across its tested workloads (Geekbench OpenCL and Vulkan), placing it in the 94th percentile of all GPUs. The AMD Radeon Pro Vega 64X, by contrast, has an average score of 80,959 (based on Geekbench Metal and OpenCL), placing it in the 92nd percentile. This indicates that while AMD wins the single shared OpenCL test, the NVIDIA card is significantly more capable in other API environments. The RTX 6000’s Vulkan score of 129,564 is particularly dominant, showcasing its strength in that modern graphics API—a workload where the Vega 64X has no comparable benchmark result in the data.

Looking at the competitive landscape, the NVIDIA card’s average of 101,872 places it 4.5% ahead of the AMD Radeon RX 7900M and 4.9% ahead of the AMD Radeon Pro VII, but it is 4.6% behind the AMD Radeon Pro Vega II Duo and 5.1% behind the AMD Radeon Pro W6600X. The AMD Vega 64X’s average of 80,959 sits 1.3% behind the AMD Radeon PRO W6600, but it is 1.4% ahead of the NVIDIA GeForce RTX 5090 and 1.7% ahead of the NVIDIA Tesla P100 PCIe 16 GB. This confirms that the Vega 64X is a strong competitor against high-end consumer and older data-center cards, while the RTX 6000 is positioned among the top-tier workstation and prosumer offerings.

FAQ

Q: Which card has the higher average benchmark score?

A: The NVIDIA Quadro RTX 6000 has a significantly higher average benchmark score of 101,872, compared to the AMD Radeon Pro Vega 64X’s 80,959. This places the RTX 6000 in the 94th percentile of all GPUs, versus the 92nd percentile for the AMD card.

Q: Does the AMD card win any direct benchmark comparison?

A: Yes. In the Geekbench OpenCL test, the AMD Radeon Pro Vega 64X scores 78,467, defeating the NVIDIA Quadro RTX 6000’s score of 74,179. This gives the AMD card a 5.5% performance advantage in that specific test.

Q: What is the memory configuration difference between the two cards?

A: The NVIDIA Quadro RTX 6000 features 24 GB of GDDR6 memory on a 384-bit bus with 672.0 GB/s of bandwidth. The AMD Radeon Pro Vega 64X has 16 GB of HBM2 memory on a 2048-bit bus, but with a lower bandwidth of 512.0 GB/s.

Q: How do their transistor densities compare?

A: Despite using a larger 14 nm process node, the AMD Radeon Pro Vega 64X has a slightly higher transistor density of 25.3M / mm², compared to the NVIDIA Quadro RTX 6000’s 24.7M / mm² on its 12 nm node.

Q: Which card has a higher peak FP32 (single-precision) performance?

A: The NVIDIA Quadro RTX 6000 has a higher FP32 performance at 16.31 TFLOPS, while the AMD Radeon Pro Vega 64X achieves 12.03 TFLOPS. This represents a roughly 35% advantage for the NVIDIA card in raw single-precision compute throughput.

Q: Does the AMD card support hardware ray tracing?

A: No. The AMD Radeon Pro Vega 64X has no RT cores listed in its specifications. The NVIDIA Quadro RTX 6000, however, includes 72 dedicated RT cores for hardware-accelerated ray tracing.

Where Each One Wins

The AMD Radeon Pro Vega 64X wins in raw OpenCL compute performance. Its 78,467 score in Geekbench OpenCL beats the RTX 6000 by 5.5%, making it the better choice for workloads that rely heavily on this open standard for general-purpose GPU computing. The card’s higher transistor density (25.3M / mm² vs. 24.7M / mm²) suggests a more efficient packing of transistors, which may contribute to its performance per die area. It also has a lower TDP of 250 W compared to the RTX 6000’s 260 W, making it slightly more power-efficient in that regard.

The NVIDIA Quadro RTX 6000 wins in almost every other measurable category. Its average benchmark score of 101,872 is 25.8% higher than the AMD card’s 80,959, indicating superior overall performance across a wider range of APIs. The RTX 6000 boasts more shading units (4608 vs. 4096), more TMUs (288 vs. 256), and more ROPs (96 vs. 64), leading to higher pixel rates (169.9 GPixel/s vs. 93.95 GPixel/s) and texture rates (509.8 GTexel/s vs. 375.8 GTexel/s). Its FP32 throughput of 16.31 TFLOPS is 35.5% higher than the AMD card’s 12.03 TFLOPS. Furthermore, the RTX 6000 has 24 GB of memory versus 16 GB, and it features 72 RT cores and 576 Tensor cores, which are entirely absent from the Vega 64X. The NVIDIA card also supports newer API standards, including DirectX 12 Ultimate (12_2) and Vulkan 1.4, while the AMD card is limited to DirectX 12 (12_1) and Vulkan 1.3.

Specification Differences

The most glaring difference is in memory. The NVIDIA Quadro RTX 6000 uses 24 GB of GDDR6 on a 384-bit bus, delivering 672.0 GB/s of bandwidth. The AMD Radeon Pro Vega 64X uses 16 GB of HBM2 on a 2048-bit bus, but its bandwidth is lower at 512.0 GB/s. This is a significant disparity in both capacity and speed, favoring the NVIDIA card for large datasets and high-resolution textures.

The core configurations also differ substantially. The RTX 6000 has 4608 shading units, 288 TMUs, and 96 ROPs, while the Vega 64X has 4096 shading units, 256 TMUs, and 64 ROPs. The NVIDIA card also has 72 RT cores and 576 Tensor cores; the AMD card has none. Clock speeds differ as well, with the RTX 6000 boosting to 1770 MHz and the Vega 64X boosting to 1468 MHz. This contributes to the NVIDIA card’s higher pixel rate (169.9 GPixel/s vs. 93.95 GPixel/s) and texture rate (509.8 GTexel/s vs. 375.8 GTexel/s).

Power and physical specifications show they are built for different environments. The RTX 6000 is a dual-slot card with a 260 W TDP, requiring a 600 W power supply and using 1x 6-pin + 1x 8-pin power connectors. It has a physical length of 267 mm. The Vega 64X, however, is listed as an IGP (Integrated Graphics Processor) with a 250 W TDP, has no power connectors, and its display outputs are described as "Portable Device Dependent." This indicates the Vega 64X is designed for integration into portable or all-in-one systems, likely Apple Mac Pro modules, rather than as a standalone expansion card.

Architecture Differences

The two cards are built on radically different architectures. The NVIDIA Quadro RTX 6000 uses the Turing architecture on a 12 nm process node at TSMC, with a massive die size of 754 mm² housing 18,600 million transistors. The AMD Radeon Pro Vega 64X uses the older GCN 5.0 architecture on a 14 nm process node at GlobalFoundries, with a smaller die size of 495 mm² containing 12,500 million transistors. Interestingly, the AMD card has a slightly higher transistor density at 25.3M / mm², while the NVIDIA card is at 24.7M / mm².

The feature sets are where the architectures diverge most sharply. The Turing architecture in the RTX 6000 introduces hardware ray tracing via 72 RT cores and AI acceleration via 576 Tensor cores. This enables DirectX 12 Ultimate (12_2) support, which is the latest graphics feature level. The GCN 5.0 architecture in the Vega 64X lacks these dedicated hardware units entirely, limiting it to DirectX 12 (12_1) and Vulkan 1.3. Both cards support OpenGL 4.6 and have a PCIe 3.0 x16 bus interface. The NVIDIA card also offers a display output configuration of 4x DisplayPort 1.4a and 1x USB Type-C, while the AMD card’s outputs are dependent on the portable device it is integrated into.

The Verdict

The data dictates a clear verdict for different user profiles. For users prioritizing raw OpenCL compute performance, the AMD Radeon Pro Vega 64X is the winner. Its 5.5% advantage in Geekbench OpenCL is a concrete, measurable lead. However, this is a narrow victory in a single metric, and it comes with significant compromises. The Vega 64X has less memory (16 GB vs. 24 GB), lower bandwidth, no dedicated ray tracing or tensor cores, and a substantially lower average benchmark score (80,959 vs. 101,872).

The NVIDIA Quadro RTX 6000 is the superior all-around workstation GPU. Its higher average score, superior FP32 performance (16.31 TFLOPS), larger memory pool, and exclusive support for hardware ray tracing and Tensor cores make it the more future-proof and versatile choice. The 94th percentile ranking versus the 92nd percentile for the AMD card underscores this gap. For any professional workload that leverages Vulkan, requires large memory buffers, or utilizes ray tracing or AI features, the RTX 6000 is the definitive pick based on the evidence. The AMD card’s only clear win is in the specific OpenCL benchmark, making it a niche choice for users locked into that API and constrained by the integrated form factor of the Mac platform.