AMD Radeon Pro Vega 64 vs NVIDIA Quadro RTX 6000 Comparison

NVIDIA Quadro RTX 6000 and AMD Radeon Pro Vega 64 are both end-of-life workstation-class GPUs, but they represent fundamentally different design philosophies and performance tiers. The data shows a clear overall winner in the NVIDIA Quadro RTX 6000, which holds a 40.8% higher average benchmark score (101,872 vs 72,379) and sits in the 94th percentile of all GPUs compared to the AMD’s 91st percentile. However, the AMD card wins in specific API workloads, making the choice heavily dependent on the software environment and rendering backend being used.

Where Each One Wins

The NVIDIA Quadro RTX 6000 dominates the Vulkan API, where it posts a score of 129,564 compared to the AMD Radeon Pro Vega 64’s 74,174. This represents a massive 74.7% lead for NVIDIA, making it the clear choice for any workload that leverages Vulkan for compute or graphics. In OpenCL, the NVIDIA card also wins, but by a much narrower margin: 74,179 versus 71,094, a 4.3% advantage. This suggests that in OpenCL-heavy applications, the gap between the two is small enough that other system factors could matter more.

The AMD Radeon Pro Vega 64’s only recorded benchmark win comes from the Metal API, where it scores 71,868. This is a significant data point because it is the only test in which the AMD card outperforms the NVIDIA card’s OpenCL score, and it highlights the AMD card’s strength in Apple’s ecosystem. The data does not include a Metal score for the NVIDIA card, so a direct head-to-head in that API is not possible, but the AMD card’s Metal result is competitive with its own OpenCL and Vulkan scores, suggesting it is a well-rounded performer across different backends. For users working in macOS environments that favor Metal, the AMD card may be the more practical option, while the NVIDIA card is overwhelmingly superior in Vulkan-focused Linux or Windows workflows.

Architecture Differences

The two cards are built on completely different manufacturing processes and architectural generations. The NVIDIA Quadro RTX 6000 uses the TU102 chip on a 12 nm process from TSMC, packing 18,600 million transistors onto a 754 mm² die. The AMD Radeon Pro Vega 64 uses the Vega 10 chip on a 14 nm process from GlobalFoundries, with 12,500 million transistors on a 495 mm² die. Notably, the AMD card has a slightly higher transistor density at 25.3M per mm² versus NVIDIA’s 24.7M per mm², despite being on an older node.

The NVIDIA card is built on the Turing architecture, which introduces dedicated hardware features that the AMD GCN 5.0 architecture lacks entirely. The Quadro RTX 6000 includes 72 RT cores and 576 tensor cores, enabling hardware-accelerated ray tracing and AI inference. The AMD card has no RT cores and no tensor cores, meaning any ray tracing or tensor operations must be handled by the general-purpose shaders. The NVIDIA card also supports DirectX 12 Ultimate (12_2) and Vulkan 1.4, while the AMD card is limited to DirectX 12 (12_1) and Vulkan 1.3.

Memory architecture differs fundamentally as well. The NVIDIA card uses 24 GB of GDDR6 on a 384-bit bus, delivering 672.0 GB/s of bandwidth. The AMD card uses 16 GB of HBM2 on a 2048-bit bus, but its bandwidth is significantly lower at 402.4 GB/s. Despite the wider bus, the AMD card’s lower memory clock speed (786 MHz effective 1572 Mbps) holds it back. The NVIDIA card also has a higher base clock (1440 MHz vs 1250 MHz) and boost clock (1770 MHz vs 1350 MHz), giving it a raw throughput advantage in both pixel rate (169.9 GPixel/s vs 86.40 GPixel/s) and texture rate (509.8 GTexel/s vs 345.6 GTexel/s).

FAQ

Q: Which GPU has more raw compute power in FP32?

A: The NVIDIA Quadro RTX 6000 has a clear lead in FP32 performance, rated at 16.31 TFLOPS versus the AMD Radeon Pro Vega 64’s 11.06 TFLOPS. This translates to a 47.5% advantage for NVIDIA in single-precision compute tasks.

Q: Does the AMD card have any hardware features that NVIDIA lacks?

A: No. The AMD Radeon Pro Vega 64 relies on the older GCN 5.0 architecture without any dedicated ray tracing or tensor cores. The NVIDIA Quadro RTX 6000 includes 72 RT cores and 576 tensor cores, which are entirely absent from the AMD card.

Q: Can the AMD card be used in a standard desktop PC?

A: The AMD card is classified as an IGP (integrated graphics processor) with no power connectors and portable-device-dependent display outputs. It is designed for Apple Mac Pro systems, whereas the NVIDIA card is a dual-slot PCIe 3.0 x16 card that requires a 1x 6-pin + 1x 8-pin power connection and a 600 W power supply.

Q: Which card has higher memory bandwidth?

A: The NVIDIA Quadro RTX 6000 achieves 672.0 GB/s of memory bandwidth, which is 67% higher than the AMD card’s 402.4 GB/s. This is despite the AMD card using HBM2 on a 2048-bit bus, because the NVIDIA card’s GDDR6 memory runs at a much higher effective speed.

Q: Is the AMD card competitive in any benchmark against NVIDIA?

A: In the Metal API, the AMD card scores 71,868, which is higher than its own OpenCL score and close to the NVIDIA card’s OpenCL score. However, since no Metal score is listed for NVIDIA, the only direct benchmark where AMD wins is not a head-to-head comparison available in the data.

Specification Differences

| Specification | NVIDIA Quadro RTX 6000 | AMD Radeon Pro Vega 64 |

|---|---|---|

| Architecture | Turing | GCN 5.0 |

| Process Node | 12 nm | 14 nm |

| Foundry | TSMC | GlobalFoundries |

| Transistors | 18,600 million | 12,500 million |

| Die Size | 754 mm² | 495 mm² |

| Base Clock | 1440 MHz | 1250 MHz |

| Boost Clock | 1770 MHz | 1350 MHz |

| Memory Size | 24 GB | 16 GB |

| Memory Type | GDDR6 | HBM2 |

| Memory Bus Width | 384 bit | 2048 bit |

| Memory Bandwidth | 672.0 GB/s | 402.4 GB/s |

| Shading Units | 4608 | 4096 |

| TMUs | 288 | 256 |

| ROPs | 96 | 64 |

| RT Cores | 72 | None |

| Tensor Cores | 576 | None |

| Pixel Rate | 169.9 GPixel/s | 86.40 GPixel/s |

| Texture Rate | 509.8 GTexel/s | 345.6 GTexel/s |

| FP32 Performance | 16.31 TFLOPS | 11.06 TFLOPS |

| FP16 Performance | 32.62 TFLOPS (2:1) | 22.12 TFLOPS (2:1) |

| TDP | 260 W | 250 W |

| Slot Width | Dual-slot | IGP |

| Power Connectors | 1x 6-pin + 1x 8-pin | None |

| Suggested PSU | 600 W | Not specified |

| DirectX Support | 12 Ultimate (12_2) | 12 (12_1) |

| Vulkan Support | 1.4 | 1.3 |

| Display Outputs | 4x DisplayPort 1.4a, 1x USB Type-C | Portable Device Dependent |

| Dimensions | 267 mm x 111 mm | Not specified |

Head-to-Head Benchmarks

The two available head-to-head benchmark results paint a stark picture. In the Geekbench Vulkan test, the NVIDIA Quadro RTX 6000 scores 129,564 against the AMD Radeon Pro Vega 64’s 74,174. That is a 74.7% delta, which is not a marginal edge but a generational gap. The NVIDIA card’s Turing architecture with dedicated RT and tensor cores appears to provide a massive advantage in Vulkan workloads that leverage these features. The AMD card’s GCN 5.0 architecture, with no such specialized hardware, simply cannot keep up in this API.

The Geekbench OpenCL test is much closer, with the NVIDIA card scoring 74,179 and the AMD card scoring 71,094, a delta of just 4.3%. This tight margin suggests that in OpenCL, the raw shader throughput difference matters less, and both cards are within striking distance of each other. The NVIDIA card’s higher FP32 performance (16.31 TFLOPS vs 11.06 TFLOPS) should theoretically give it a larger lead, but the results show that OpenCL scaling is not straightforward. The AMD card’s 4,096 shading units are not far behind NVIDIA’s 4,608, and the higher base clock on NVIDIA (1440 MHz vs 1250 MHz) is partially offset by the AMD card’s wider memory bus, even if its bandwidth is lower.

Looking at the broader benchmark context, the NVIDIA card’s average score of 101,872 is driven primarily by its exceptional Vulkan result. Its nearest rivals include the AMD Radeon Pro Vega II Duo (106,750, 4.6% higher) and the AMD Radeon Pro W6600X (107,342, 5.1% higher), showing that the Quadro RTX 6000 sits in a competitive mid-range position among high-end workstation cards. The AMD Radeon Pro Vega 64’s average score of 72,379 places it near the NVIDIA TITAN X Pascal (72,098, 0.4% higher) and the AMD Radeon RX 6650M (71,768, 0.9% higher), indicating it is a solid but not exceptional performer in its own generation.

The data shows that in every direct comparison available, the NVIDIA Quadro RTX 6000 wins. However, the scale of the victory varies dramatically by API. In Vulkan, it is a blowout. In OpenCL, it is a narrow win. For any user prioritizing Vulkan performance, the NVIDIA card is the obvious choice. For users locked into Metal-based workflows, the AMD card’s 71,868 Metal score suggests it holds its own, but the lack of a comparable NVIDIA Metal score leaves that question open. The AMD card’s lower power draw (250 W vs 260 W) and IGP form factor make it easier to integrate into specific Apple systems, but the NVIDIA card’s superior compute, memory bandwidth, and feature set make it the stronger all-around workstation GPU on paper.