AMD Radeon Pro Vega 64X vs AMD Radeon RX 6950 XT Comparison

The AMD Radeon Pro Vega 64X and the AMD Radeon RX 6950 XT are two very different graphics cards from AMD, separated by three years, a process node shrink, and a complete architectural overhaul. The Pro Vega 64X is a mobile integrated graphics processor from 2019, built for Apple Mac systems. The RX 6950 XT is a 2022 desktop flagship, a massive triple-slot card designed for high-end gaming and compute. The recorded data shows a clear performance hierarchy, but the two cards serve entirely different purposes. This analysis breaks down where each one wins, what separates them internally, and what the benchmark numbers actually mean for a potential buyer.

Where Each One Wins

The performance split is not subtle. The RX 6950 XT wins every single head-to-head benchmark recorded in the database. Out of two shared tests, the RX 6950 XT takes both. The Pro Vega 64X does not win a single comparison. That does not mean the Pro Vega 64X is without merit, but its strengths lie outside the raw compute tests we have data for.

The Pro Vega 64X is an integrated graphics processor, or IGP, with a slot width listed as IGP and no power connectors required. It is designed for portable devices, where space and power draw are at a premium. Its 250 W TDP is low compared to the RX 6950 XT, and its display outputs are described as portable device dependent. This card is not meant to be dropped into a desktop tower; it is part of a laptop or an all-in-one system. The RX 6950 XT, by contrast, is a triple-slot add-in board that needs two 8-pin power connectors and a 700 W power supply. It has a physical length of 267 mm, a height of 120 mm, and a width of 50 mm.

For a user who needs a GPU that fits inside a thin Mac chassis and draws minimal power, the Pro Vega 64X is the only option of the two. For any workload that benefits from high frame rates, high compute throughput, or modern API features, the RX 6950 XT is the clear winner. The data shows that the RX 6950 XT also supports hardware ray tracing with 80 dedicated ray tracing cores, a feature completely absent from the Pro Vega 64X. The RX 6950 XT also supports DirectX 12 Ultimate, while the Pro Vega 64X is limited to DirectX 12 (12_1).

In terms of benchmark percentiles, the Pro Vega 64X sits at the 92nd percentile among all GPUs, while the RX 6950 XT sits at the 88th percentile. This is a notable inversion, given the RX 6950 XT's dominance in the head-to-head tests. However, the percentile data reflects the average benchmark score across all recorded tests, not just the shared ones. The Pro Vega 64X has a higher average benchmark score of 80,959 compared to the RX 6950 XT's 58,392. This is because the RX 6950 XT has a much wider set of recorded benchmarks, including several DirectX 9, 10, 11, and 12 tests that score very low (PassMark DirectX 9 at 303, DirectX 10 at 164, DirectX 11 at 300, DirectX 12 at 114). These low scores drag down its average. The Pro Vega 64X only has two recorded benchmarks, both of which are quite strong.

So, where does each one win? The Pro Vega 64X wins on efficiency, form factor, and integration. The RX 6950 XT wins on raw performance, feature set, and API support.

Architecture Differences

The two cards are built on entirely different architectures. The Pro Vega 64X uses the Vega 10 chip, which is based on the GCN 5.0 architecture. It is manufactured on a 14 nm process at GlobalFoundries. The chip contains 12,500 million transistors on a die size of 495 mm². That works out to a transistor density of 25.3 million transistors per square millimeter.

The RX 6950 XT uses the Navi 21 chip, based on the RDNA 2.0 architecture. It is manufactured on a 7 nm process at TSMC. The chip contains 26,800 million transistors on a die size of 520 mm². That gives a transistor density of 51.5 million transistors per square millimeter, more than double the density of the Vega 10 chip. The RX 6950 XT also has more than double the transistor count.

The memory subsystems are fundamentally different. The Pro Vega 64X uses 16 GB of HBM2 memory on a 2048-bit bus, delivering 512.0 GB/s of bandwidth. The RX 6950 XT uses 16 GB of GDDR6 memory on a 256-bit bus, delivering 576.0 GB/s of bandwidth. Despite the narrower bus, the RX 6950 XT has higher total bandwidth because its memory runs at a much higher effective speed: 18 Gbps effective versus 2 Gbps effective.

The compute resources are also heavily skewed. The Pro Vega 64X has 4096 shading units, 256 texture mapping units, and 64 render output units. The RX 6950 XT has 5120 shading units, 320 texture mapping units, and 128 render output units. The RX 6950 XT also has 80 ray tracing cores, which the Pro Vega 64X lacks entirely. Neither card has tensor cores.

Clock speeds are much higher on the RX 6950 XT. Its base clock is 1860 MHz, and its boost clock is 2310 MHz, with a game clock of 2100 MHz. The Pro Vega 64X has a base clock of 1250 MHz and a boost clock of 1468 MHz. The RX 6950 XT also has a higher memory clock at 2250 MHz versus 1000 MHz.

The API support differs as well. The Pro Vega 64X supports DirectX 12 (12_1), OpenGL 4.6, and Vulkan 1.3. The RX 6950 XT supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The bus interface also differs: the Pro Vega 64X uses PCIe 3.0 x16, while the RX 6950 XT uses PCIe 4.0 x16.

Head-to-Head Benchmarks

The database records two shared benchmarks between these cards: Geekbench Metal and Geekbench OpenCL. In both cases, the RX 6950 XT wins by a massive margin.

In Geekbench Metal, the Pro Vega 64X scores 83,450. The RX 6950 XT scores 222,653. That is a delta of -62.5 percent relative to the RX 6950 XT, meaning the RX 6950 XT is roughly 2.7 times faster in this test. The RX 6950 XT is not just ahead; it is in a different category. For a user running Metal-accelerated applications, the RX 6950 XT would complete tasks in a fraction of the time.

In Geekbench OpenCL, the Pro Vega 64X scores 78,467. The RX 6950 XT scores 205,998. The delta is -61.9 percent relative to the RX 6950 XT. Again, the RX 6950 XT is roughly 2.6 times faster. OpenCL is a general-purpose compute API, and the RX 6950 XT's higher shader count, higher clocks, and faster memory all contribute to this result.

The RX 6950 XT also has a large set of additional benchmarks that the Pro Vega 64X does not share. Its 3DMark Steel Nomad DX12 score is 4,235. Its Geekbench Vulkan score is 165,212. Its PassMark G3D score is 28,070, and its PassMark GPU Compute score is 14,199. The Pro Vega 64X has no recorded results for these tests, so we cannot compare them directly. However, the presence of a Vulkan benchmark on the RX 6950 XT is worth noting, as the Pro Vega 64X supports Vulkan 1.3 but has no recorded Vulkan score.

Looking at the nearest rivals for each card provides additional context. The Pro Vega 64X's average benchmark score of 80,959 places it just 1.3 percent behind the AMD Radeon PRO W6600, which scores 81,995. It is 1.4 percent ahead of the NVIDIA GeForce RTX 5090, which scores 79,842. It is 1.7 percent ahead of the NVIDIA Tesla P100 PCIe 16 GB at 79,605, and 2 percent ahead of the NVIDIA Tesla P100 PCIe 12 GB at 79,396. These are all professional or workstation-class cards, which aligns with the Pro Vega 64X's positioning in Mac systems.

The RX 6950 XT's average benchmark score of 58,392 is much lower, but its nearest rivals are a different group. It is 0.2 percent behind the NVIDIA P102-100 at 58,528, 0.3 percent ahead of the Intel Arc A570M at 58,239, 0.5 percent behind the AMD Radeon PRO V710 at 58,657, and 0.5 percent ahead of the AMD Radeon RX 5600 OEM at 58,085. These are lower-tier cards, which reflects the RX 6950 XT's average being dragged down by its low DirectX 9, 10, 11, and 12 scores.

The Verdict

The data is unambiguous: the AMD Radeon RX 6950 XT is the far more powerful card. It wins both shared benchmarks by a factor of roughly 2.6 to 2.7. It has a newer architecture, a smaller process node, more shading units, more texture units, more render output units, higher clock speeds, higher memory bandwidth, and dedicated ray tracing cores. It supports DirectX 12 Ultimate and Vulkan 1.4, while the Pro Vega 64X is limited to DirectX 12 (12_1) and Vulkan 1.3.

A user who needs maximum compute performance, modern gaming features, or ray tracing should choose the RX 6950 XT without hesitation. Its 80 ray tracing cores and DirectX 12 Ultimate support make it suitable for current and upcoming games. Its 16 GB of GDDR6 memory and 576.0 GB/s bandwidth are more than adequate for high-resolution textures and large datasets.

However, the Pro Vega 64X is not obsolete. It is an integrated processor with no power connectors and a 250 W TDP, designed for portable devices. Its 16 GB of HBM2 memory on a 2048-bit bus is a unique configuration that still delivers respectable bandwidth at 512.0 GB/s. Its average benchmark score of 80,959 is actually higher than the RX 6950 XT's 58,392, and it sits at the 92nd percentile among all GPUs. For a user who needs a GPU that fits in a Mac laptop or an all-in-one and does not require the absolute highest frame rates, the Pro Vega 64X is a viable option.

The choice comes down to the use case. The RX 6950 XT is a desktop powerhouse for enthusiasts and professionals who have the space and power supply headroom. The Pro Vega 64X is a mobile solution for users who prioritize portability and integration over raw performance. The recorded data does not show any scenario where the Pro Vega 64X outperforms the RX 6950 XT, so the decision is based on physical constraints and workload requirements rather than benchmark superiority.

FAQ

Q: Which card has a higher Geekbench Metal score?

A: The AMD Radeon RX 6950 XT scores 222,653 in Geekbench Metal, while the AMD Radeon Pro Vega 64X scores 83,450. The RX 6950 XT is 62.5 percent faster in this test.

Q: Do both cards have the same amount of memory?

A: Yes, both cards have 16 GB of memory. The Pro Vega 64X uses HBM2 on a 2048-bit bus, while the RX 6950 XT uses GDDR6 on a 256-bit bus.

Q: Does the Pro Vega 64X support ray tracing?

A: No, the Pro Vega 64X has no ray tracing cores. The RX 6950 XT has 80 dedicated ray tracing cores.

Q: What process node is each card built on?

A: The Pro Vega 64X is built on a 14 nm process at GlobalFoundries. The RX 6950 XT is built on a 7 nm process at TSMC.

Q: Which card has a higher average benchmark score?

A: The Pro Vega 64X has a higher average benchmark score of 80,959, compared to the RX 6950 XT's 58,392. This is because the RX 6950 XT has multiple low-scoring DirectX 9, 10, 11, and 12 benchmarks that the Pro Vega 64X does not have.

Q: What is the TDP of each card?

A: The Pro Vega 64X has a TDP of 250 W and requires no power connectors. The RX 6950 XT has a TDP of 335 W and requires two 8-pin power connectors and a 700 W power supply.

Specification Differences

The following specifications differ between the two cards:

| Specification | AMD Radeon Pro Vega 64X | AMD Radeon RX 6950 XT |

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

| Architecture | GCN 5.0 | RDNA 2.0 |

| Process Node | 14 nm | 7 nm |

| Foundry | GlobalFoundries | TSMC |

| Transistors | 12,500 million | 26,800 million |

| Die Size | 495 mm² | 520 mm² |

| Transistor Density | 25.3M / mm² | 51.5M / mm² |

| Base Clock | 1250 MHz | 1860 MHz |

| Boost Clock | 1468 MHz | 2310 MHz |

| Game Clock | Not specified | 2100 MHz |

| Memory Clock | 1000 MHz, 2 Gbps effective | 2250 MHz, 18 Gbps effective |

| Memory Type | HBM2 | GDDR6 |

| Memory Bus Width | 2048 bit | 256 bit |

| Memory Bandwidth | 512.0 GB/s | 576.0 GB/s |

| Shading Units | 4096 | 5120 |

| TMUs | 256 | 320 |

| ROPs | 64 | 128 |

| Ray Tracing Cores | None | 80 |

| Pixel Rate | 93.95 GPixel/s | 295.7 GPixel/s |

| Texture Rate | 375.8 GTexel/s | 739.2 GTexel/s |

| FP32 Performance | 12.03 TFLOPS | 23.65 TFLOPS |

| FP16 Performance | 24.05 TFLOPS (2:1) | 47.31 TFLOPS (2:1) |

| TDP | 250 W | 335 W |

| Slot Width | IGP | Triple-slot |

| Power Connectors | None | 2x 8-pin |

| Suggested PSU | Not specified | 700 W |

| Bus Interface | PCIe 3.0 x16 | PCIe 4.0 x16 |

| Display Outputs | Portable Device Dependent | 1x HDMI 2.1, 2x DisplayPort 1.4a |

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

| Vulkan Support | 1.3 | 1.4 |

| Dimensions | Not specified | 267 mm length, 120 mm height, 50 mm width |

| Release Date | 2019-03-18 | 2022-05-09 |

| Predecessor | Not specified | Navi |

| Successor | Not specified | Navi III |

| Launch MSRP | Not specified | 1,099 USD |