AMD Radeon Pro Vega 64X vs NVIDIA CMP 50HX Comparison

Where Each One Wins

The benchmark data splits these two cards into very different roles. The AMD Radeon Pro Vega 64X wins the only shared test, Geekbench OpenCL, by a decisive 39.8% margin. That makes it the clear choice for compute workloads that rely on OpenCL acceleration, where its 12.03 TFLOPS of FP32 throughput and 512.0 GB/s of HBM2 bandwidth can be fully utilized. Its Geekbench Metal score of 83,450 further cements its standing as a capable graphics workstation card for macOS environments, since Metal is the primary GPU API on Apple platforms.

The NVIDIA CMP 50HX, by contrast, has no OpenCL victory to claim. Its Geekbench OpenCL score of 56,135 is substantially lower, and its only other recorded benchmark, Geekbench Vulkan at 47,445, shows modest performance on that API. The CMP 50HX was designed for a different purpose entirely: it is a mining-specific GPU with no display outputs, which means its compute capabilities are aimed at hash workloads rather than traditional graphics or workstation tasks. The data reflects that, as its average benchmark score of 51,790 places it in the 86th percentile of all GPUs, a solid but not exceptional position.

Where the CMP 50HX does hold advantages, they are architectural rather than benchmark-driven. It supports DirectX 12 Ultimate (12_2), Vulkan 1.4, and includes 56 RT Cores and 448 Tensor Cores, making it a Turing-generation part with modern feature support. The Radeon Pro Vega 64X counters with GCN 5.0 architecture, DirectX 12 (12_1) and Vulkan 1.3 support, but no RT Cores or Tensor Cores at all. For users who need rasterization features like ray tracing or Tensor Core acceleration, the CMP 50HX is the only one of these two that offers them.

In terms of pure performance percentile, the Radeon Pro Vega 64X sits at the 92nd percentile versus all GPUs, with an average score of 80,959, placing it among far more expensive and much larger workstation cards like the RTX 5090 class of performance class. The CMP 50HX sits at 86th percentile, with an average score of 51,790. The delta between their average scores is 18.9 percentage points in favor of the AMD part, which tracks with that OpenCL delta of 39.8 points. Simply put, the data shows the Radeon Pro Vega 64X is the stronger performer in every measurable way, while the CMP 50HX is the more feature-rich Turing part with capabilities the AMD card simply does not have.

FAQ

Q: Which card has more shading units?

A: The AMD Radeon Pro Vega 64X has 4096 shading units, which is 512 more than the NVIDIA CMP 50HX's 3584 shading units.

Q: What is the memory configuration of each card?

A: The AMD Radeon Pro Vega 64X has 16 GB of HBM2 memory on a 2048-bit bus with 512.0 GB/s of bandwidth, while the NVIDIA CMP 50HX has 10 GB of GDDR6 memory on a 320-bit bus with 560.0 GB/s of bandwidth.

Q: Which GPU supports ray tracing cores?

A: Only the NVIDIA CMP 50HX includes RT Cores, with 56 of them, as part of its Turing architecture. The AMD Radeon Pro Vega 64X has no RT Cores.

Q: Does either GPU have Tensor Cores?

A: Yes, the NVIDIA CMP 50HX includes 448 Tensor Cores. The AMD Radeon Pro Vega 64X does not have Tensor Cores.

Q: What is the average benchmark score difference between the two cards?

A: The AMD Radeon Pro Vega 64X has an average benchmark score of 80,959, while the NVIDIA CMP 50HX has an average score of 51,790, a difference of 29,169 points in favor of the AMD card.

Q: Which card has display outputs?

A: The AMD Radeon Pro Vega 64X has display outputs described as "Portable Device Dependent," while the NVIDIA CMP 50HX has no display outputs at all.

Head-to-Head Benchmarks

The only directly comparable benchmark in the database is Geekbench OpenCL, and the result is heavily one-sided. The AMD Radeon Pro Vega 64X scores 78,467, while the NVIDIA CMP 50HX scores 56,135. That is a 39.8% delta in favor of the AMD card, a significant margin that indicates a meaningful gap in raw compute throughput for OpenCL workloads. To put that in context, the Radeon Pro Vega 64X's nearest rivals are the AMD Radeon PRO W6600, which scores 81,995 (1.3% higher), the NVIDIA GeForce RTX 5090 at 79,842 (1.4% higher), and the NVIDIA Tesla P100 PCIe 16 GB at 79,605 (1.7% higher). The CMP 50HX, meanwhile, sits in a different performance class altogether, its nearest rivals being the AMD Radeon RX 6900 XT at 50,951 (1.6% lower) and the AMD Radeon RX Vega 64 at 50,001 (3.6% lower).

The delta between the two cards is so large that no other head-to-head comparisons are needed to establish a winner: the Radeon, with its 4096 shading units, 256 TMUs, and 64 ROPs, simply outguns the CMP 50HX's 3584 shading units, 192 TMUs, and 80 ROPs in this test.

The Radeon Pro Vega 64X also has a Geekbench Metal score of 83,450, which is its highest recorded benchmark. The CMP 50HX cannot be tested in Metal, as it has no display outputs and no Metal is not part of its supported API list. Its Vulkan score of 47,445, on the other hand, is lower than its OpenCL score by 8,690 points, suggesting that Vulkan performance is less optimized on the Turing mining card than OpenCL is.

The data confirms that the AMD card wins 1 win, while the NVIDIA card has 0 wins, making this a clean sweep in favor of the Radeon Pro Vega 64X. The margin of 39.8% is the largest delta recorded in the head-to-head benchmark set, and it dwarfs the differences between the Radeon Pro Vega 64X and its own nearest rivals, which are all within 2 percentage points of the AMD card's average score. The CMP 50HX, by contrast, is within 4.1 percentage points of its nearest rivals, but those rivals are all lower-scoring cards.

In the broader context of all GPUs, the Radeon Pro Vega 64X ranks in the 92nd percentile, while the CMP 50HX ranks in the 86th percentile. That 6-percentile gap is mirrored by the 29,169-point average score gap, which is a 18.9% difference in favor of the AMD card.

The takeaway is unambiguous: in any compute task that can use OpenCL, the AMD Radeon Pro Vega 64X is the clear winner, and the only benchmark where both cards have a recorded score, it wins by a large margin. The NVIDIA CMP 50HX simply cannot match the AMD card's compute throughput, and its only consolation is its feature set of Turing-specific hardware like RT Cores, Tensor Cores, and a higher memory clock speed of 1545 MHz.

The more detailed breakdown shows that the AMD card's texture rate is 375.8 GTexel/s, compared to 296.6 GTexel/s for the NVIDIA card, and pixel rate is 93.95 GPixel/s versus 123.6 GPixel/s, meaning the Turing card has a higher pixel throughput despite lower shading unit count.

The FP32 throughput of the AMD card is 12.03 TFLOPS versus 11.07 TFLOPS for the CMP 50HX, and FP16 throughput is 24.05 TFLOPS versus 22.15 TFLOPS, so the AMD card has a 0.96 TFLOPS lead in FP32 and a 1.90 TFLOPS lead in FP16 compute.

Specification Differences

The memory subsystems are entirely different. The AMD Radeon Pro Vega 64X uses 16 GB of HBM2 memory on a 2048-bit memory bus, delivering 512.0 GB/s of bandwidth at 1000 MHz memory clock speed, which is 2 Gbps effective data rate per pin pair. The NVIDIA CMP 50HX has 10 GB of GDDR6 memory on a 320-bit bus, providing 560.0 GB/s of bandwidth at 1750 MHz memory clock speed, which is 14 Gbps effective data rate per pin pair. The NVIDIA card has a higher memory bus width of 320 bits versus 2048 bits for the AMD card, so the AMD card has a 1728-bit wider memory bus, but the HBM2 technology delivers less bandwidth overall.

The physical dimensions differ as well. The AMD card is an IGP slot width design with no power connectors, meaning it draws power through the host system rather than its own power connectors. The NVIDIA CMP 50HX is a dual-slot card with two 8-pin power connectors, a 267 mm length (10.5 inches), 116 mm height (4.6 inches), and 35 mm width (1.4 inches), and it suggests a 600 W power supply unit. The Radeon Pro Vega 64X has no dimensions listed, and no suggested PSU rating is listed.

The bus interface is also distinct. The AMD Radeon Pro Vega 64X uses PCIe 3.0 x16, which is a full x16 link on PCIe 3.0 specification, while the NVIDIA CMP 50HX uses PCIe 1.0 x4, which is a much slower x4 link on PCIe 1.0 specification. The AMD card has a higher bus bandwidth capability, while the NVIDIA card has a lower latency bus interface, but the CMP 50HX has a 600 W PSU rating, which is the same TDP rating of 250 W for both cards.

The manufacturing process node is 14 nm for the AMD card, fabricated at GlobalFoundries foundry with 12,500 million transistors on a 495 mm² die size, while the NVIDIA CMP 50HX is 12 nm node process at TSMC foundry with 18,600 million transistors on a 754 mm² die size. The AMD card has a transistor density of 25.3M per mm², and the NVIDIA card has a transistor density of 24.7M per mm², which is a 0.6M per mm² difference in density.

The API support differs in DirectX version: the AMD Radeon Pro Vega 64X supports DirectX 12 (12_1) and OpenGL 4.6, while the NVIDIA CMP 50HX supports DirectX 12 Ultimate (12_2) and OpenGL 4.6 and Vulkan 1.4. The AMD card supports Vulkan 1.3 and Vulkan 1.4, while the NVIDIA card supports Vulkan 1.4, which is a higher Vulkan version for the CMP 50HX.

The Radeon Pro Vega 64X has display outputs that are portable device dependent, meaning it has display outputs only if the host system provides them. The NVIDIA CMP 50HX has no display outputs and can only be used in headless operation.

Architecture Differences

The AMD Radeon Pro Vega 64X uses GCN 5.0 architecture, also known as Graphics Core Next 5.0, which is the fifth iteration of AMD's GCN architecture family. The chip is named Vega 10, which, like the rest of the Vega series, is a compute-oriented GPU design built on a 14 nm process node at GlobalFoundries foundry. The Vega 10 chip features 12,500 million transistors on a 495 mm² die, with a transistor density of 25.3M per mm², and it belongs to the Radeon Pro Mac (Vega Series) generation, which is the workstation variant of the Vega GPU lineup. The Radeon Pro Vega 64X has 4096 shading units meaning 4096 stream processors, which is its compute unit count of 256 TMUs and 64 ROPs, and its pixel rate is 93.95 GPixel/s and texture rate is 375.8 GTexel/s, and its FP32 performance is 12.03 TFLOPS and FP16 performance is 24.05 TFLOPS at a 2:1 ratio.

The NVIDIA CMP 50HX uses Turing architecture, which is a major architectural leap over the older GCN 5.0 design, and it is built on a 12 nm process node at TSMC foundry. The TU102 chip is the largest of the Turing family, with 18,600 million transistors on a 754 mm² die, which is a larger die than the AMD card, with 24.7M per mm² transistor density. The Turing architecture includes RT Cores, of which there are 56, and Tensor Cores, of which there are 448, which are both absent from the AMD card. The CMP 50HX has 3584 shading units, 192 TMUs, and 80 ROPs, with a pixel rate of 123.6 GPixel/s and a texture rate of 296.6 GTexel/s, which is a lower texture rate than the AMD card despite the higher pixel rate. Its FP32 performance is 11.07 TFLOPS, and FP16 performance is 22.15 TFLOPS, again 2:1.

The architectural differences are fundamental. The GCN 5.0 architecture in the Radeon Pro Vega 64X is optimized for graphics and compute workloads found in professional visualization environments, with its HBM2 memory providing high bandwidth for large datasets. The Turing architecture in the CMP 50HX is a more recent design that adds hardware ray tracing via RT Cores and AI acceleration via Tensor Cores, but the CMP 50HX is a mining-specific version with no display outputs, so those features are not usable for traditional graphics. The AMD card has a higher FP32 throughput of 12.03 TFLOPS versus 11.07 TFLOPS, and a higher FP16 throughput of 24.05 TFLOPS versus 22.15 TFLOPS, meaning the Radeon Pro Vega 64X has a 0.96 TFLOPS lead in FP32 and a 1.90 TFLOPS lead in FP16. Its texture rate is 375.8 GTexel/s versus 296.6 GTexel/s, a 79.2 GTexel/s advantage for the AMD card, while the NVIDIA card has a pixel rate of 123.6 GPixel/s versus 93.95 GPixel/s for the AMD card, a 29.65 GPixel/s advantage for the NVIDIA card.

The memory architecture also differs, with the AMD card using HBM2 on a 2048-bit bus and the NVIDIA card using GDDR6 on a 320-bit bus. The NVIDIA card has a higher memory bandwidth of 560.0 GB/s versus 512.0 GB/s for the AMD card, a 48.0 GB/s advantage for the CMP 50HX. That bandwidth advantage does not translate into compute wins, as the OpenCL benchmark demonstrates.

The Radeon Pro Vega 64X is a Mac-oriented card, with its display outputs described as portable device dependent and its slot width as IGP, meaning it is an integrated graphics processor mounted on a host board. The CMP 50HX is a mining GPU with no display outputs, designed to be installed in mining rigs without any display connection. Both are end-of-life products, with the Radeon Pro Vega 64X released on March 18, 2019, and the CMP 50HX released on June 23, 2021, two years later.

The API support differs in DirectX version: the AMD Radeon Pro Vega 64X supports DirectX 12 (12_1) and OpenGL 4.6, while the NVIDIA CMP 50HX supports DirectX 12 Ultimate (12_2) and OpenGL 4.6 and Vulkan 1.4. The AMD card supports Vulkan 1.3 and Vulkan 1.4, while the NVIDIA card supports Vulkan 1.4, which is a higher Vulkan version for the CMP 50HX.

The Radeon Pro Vega 64X has display outputs that are portable device dependent, meaning it has display outputs only if the host system provides them. The NVIDIA CMP 50HX has no display outputs and can only be used in headless operation.