AMD Radeon Pro Vega 64X vs AMD Radeon PRO W7800 Comparison

Head-to-Head Benchmarks

The recorded data contains one direct head-to-head comparison between these two workstation GPUs, and it is a decisive result. In the Geekbench OpenCL test, the AMD Radeon PRO W7800 scores 154366, while the AMD Radeon Pro Vega 64X scores 78467. That is a delta of 96.7%, meaning the W7800 delivers nearly double the compute throughput of the older Vega 64X in this workload. The W7800 wins the only shared benchmark category, giving it a 1 to 0 win count in the head-to-head table.

Looking at the broader database averages, the gap remains large but slightly less extreme. The W7800 holds an average benchmark score of 164894 across all recorded tests, placing it in the 97th percentile of all GPUs. The Vega 64X averages 80959, which puts it in the 92nd percentile. The absolute difference of 83935 points represents a 103.7% improvement for the newer card, a near doubling of overall measured performance.

The W7800's nearest rivals in the database are all NVIDIA workstation parts. Its average score of 164894 sits 0.2% below the NVIDIA RTX A5500 (165217), 0.7% below the NVIDIA RTX 4500 Ada Generation (166094), and 2.2% below the AMD Radeon Pro W6900X (168574). It is 1.5% above the NVIDIA A100 PCIe 40 GB (162504). This places the W7800 in a tight cluster of high-end workstation accelerators, where the differences between competing cards are within a few percentage points. The Vega 64X, by contrast, sits in a lower tier. Its average of 80959 is 1.3% below the AMD Radeon PRO W6600 (81995), 1.4% above the NVIDIA GeForce RTX 5090 (79842), 1.7% above the NVIDIA Tesla P100 PCIe 16 GB (79605), and 2.0% above the NVIDIA Tesla P100 PCIe 12 GB (79396).

The OpenCL subtest is the only test where both cards have recorded scores, so it serves as the cleanest comparison point. The W7800's 96.7% advantage in that test is consistent with its much higher peak theoretical throughput: the database lists 45.25 TFLOPS FP32 for the W7800 versus 12.03 TFLOPS for the Vega 64X, a 3.76x difference in raw compute specification. Real-world OpenCL performance does not scale perfectly with theoretical peak, but the recorded result confirms that the newer architecture extracts a substantial fraction of its added capability.

The Verdict

The data supports a clear separation between these two cards. The AMD Radeon PRO W7800 is the stronger GPU by every recorded metric: higher average benchmark score (164894 versus 80959), higher percentile rank (97th versus 92nd), and a 96.7% win in the shared OpenCL test. Any workload that relies on general compute, OpenCL acceleration, or raw FP32 throughput will favor the W7800 decisively.

The AMD Radeon Pro Vega 64X should be chosen only in the specific context of portable or integrated systems. Its slot width is listed as IGP (integrated graphics processor), it has no power connectors, and its display outputs are described as "Portable Device Dependent." This is not a card meant for a desktop workstation tower; it is an embedded part for laptops or all-in-one Mac systems. For users constrained to that form factor, the Vega 64X is the only option in this comparison, and its 92nd percentile standing is respectable for an integrated part. But for anyone who can accommodate a dual-slot, 280 mm card with two 8-pin power connectors, the W7800 is the superior choice without qualification.

The production status reinforces this: the W7800 is listed as Active, while the Vega 64X is End-of-life. Purchasing the Vega 64X today means acquiring a legacy part with no ongoing availability from AMD. The W7800 is the current-generation product, released on 2023-04-12, whereas the Vega 64X launched on 2019-03-18, a four-year gap that shows up directly in the benchmark scores.

Architecture Differences

The two GPUs come from entirely different architectural generations. The W7800 uses the Navi 31 chip on the RDNA 3.0 architecture, with the codename Plum Bonito, and belongs to the Radeon Pro Navi (Navi III Series) generation. The Vega 64X uses the Vega 10 chip on the GCN 5.0 architecture and belongs to the Radeon Pro Mac (Vega Series) generation. This is a shift from the Graphics Core Next design to the RDNA lineage, which explains much of the performance delta.

The manufacturing process differs substantially. The W7800 is built on a 5 nm process at TSMC, while the Vega 64X uses a 14 nm process at GlobalFoundries. This two-generation process jump allows the W7800 to pack 57,700 million transistors onto a 529 mm² die, for a transistor density of 109.1 million transistors per square millimeter. The Vega 64X has 12,500 million transistors on a 495 mm² die, a density of 25.3 million per square millimeter. The W7800 achieves 4.6x the transistor count on a die that is only 6.9% larger, purely through the density advantage of the smaller process node.

The chip layout also differs in fundamental ways. The W7800 has 70 dedicated ray tracing cores, a feature entirely absent from the Vega 64X, which lists no RT cores at all. This makes the W7800 capable of hardware-accelerated ray tracing, while the Vega 64X would have to rely on compute shaders if such workloads were attempted. The W7800 also supports DirectX 12 Ultimate (12_2) and Vulkan 1.4, whereas the Vega 64X is limited to DirectX 12 (12_1) and Vulkan 1.3. Both cards support OpenGL 4.6.

Memory architecture is another major divergence. The W7800 uses 32 GB of GDDR6 on a 256-bit bus, achieving 576.0 GB/s of bandwidth. The Vega 64X uses 16 GB of HBM2 on a 2048-bit bus, achieving 512.0 GB/s. The W7800 has a narrower bus but compensates with much faster memory clocks: 2250 MHz (18 Gbps effective) versus 1000 MHz (2 Gbps effective). The result is that the W7800 still delivers 12.5% more bandwidth despite using a fraction of the bus width. The HBM2 implementation on the Vega 64X has half the capacity, which may be a limiting factor for very large datasets.

Specification Differences

The clock speeds show a generational leap. The W7800 runs at a base of 1895 MHz and boosts to 2525 MHz, while the Vega 64X runs at 1250 MHz base and 1468 MHz boost. The W7800's boost clock is 72% higher than the Vega 64X's, a combination of the smaller process node and architectural efficiency improvements.

The compute unit configuration differs across every major block. The W7800 has 4480 shading units, 280 texture mapping units, and 128 render output units. The Vega 64X has 4096 shading units, 256 TMUs, and 64 ROPs. The shading unit count is only 9.4% higher on the W7800, but the TMU count is 9.4% higher and the ROP count is exactly double. This doubling of ROPs contributes to the pixel rate advantage: 323.2 GPixel/s for the W7800 versus 93.95 GPixel/s for the Vega 64X, a 3.44x difference. The texture rate tells a similar story: 707.0 GTexel/s versus 375.8 GTexel/s, a 1.88x difference.

The FP32 compute figures are 45.25 TFLOPS for the W7800 and 12.03 TFLOPS for the Vega 64X. FP16 performance follows the same 2:1 ratio on both cards: 90.50 TFLOPS for the W7800 and 24.05 TFLOPS for the Vega 64X.

Power and physical specifications differ as well. The W7800 has a TDP of 260 W, only 10 W higher than the Vega 64X's 250 W, despite delivering roughly 3.76x the FP32 throughput. The W7800 is a dual-slot card measuring 280 mm in length, 110 mm in height, and 40 mm in width, requiring two 8-pin power connectors and a 600 W suggested power supply. The Vega 64X has no listed dimensions, no power connectors, and is classified as IGP slot width, confirming its mobile or embedded nature. The bus interface also differs: PCIe 4.0 x16 for the W7800 versus PCIe 3.0 x16 for the Vega 64X.

The W7800 has a launch MSRP of 2,499 USD. The Vega 64X has no recorded launch MSRP. Display outputs differ: the W7800 offers 3x DisplayPort 2.1 and 1x mini-DisplayPort 2.1, while the Vega 64X is listed as "Portable Device Dependent."

FAQ

Q: Which card is faster in OpenCL benchmarks?

A: The AMD Radeon PRO W7800 scores 154366 in Geekbench OpenCL, while the AMD Radeon Pro Vega 64X scores 78467. The W7800 wins by 96.7%.

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

A: The W7800 has an average benchmark score of 164894, and the Vega 64X has an average of 80959. The W7800 is higher by 83935 points, roughly double the Vega 64X's score.

Q: Does the Vega 64X support ray tracing?

A: No. The Vega 64X lists no ray tracing cores, while the W7800 has 70 dedicated RT cores.

Q: What are the memory configurations of each card?

A: The W7800 has 32 GB of GDDR6 on a 256-bit bus with 576.0 GB/s bandwidth. The Vega 64X has 16 GB of HBM2 on a 2048-bit bus with 512.0 GB/s bandwidth.

Q: Which card is still in production?

A: The W7800 is listed as Active production status. The Vega 64X is End-of-life.

Q: How do these cards compare to their nearest rivals in the database?

A: The W7800 sits within 2.2% of the AMD Radeon Pro W6900X, NVIDIA RTX 4500 Ada Generation, NVIDIA RTX A5500, and NVIDIA A100 PCIe 40 GB. The Vega 64X sits within 2.0% of the AMD Radeon PRO W6600, NVIDIA GeForce RTX 5090, and two NVIDIA Tesla P100 variants.

Where Each One Wins

The AMD Radeon PRO W7800 wins in every scenario where a discrete GPU can be installed. Its 45.25 TFLOPS FP32 compute makes it suitable for heavy simulation, rendering, and machine learning workloads that scale with raw throughput. The 32 GB frame buffer is double the Vega 64X's capacity, which matters for large 3D scenes, high-resolution textures, or datasets that must reside in GPU memory. The 70 RT cores enable hardware-accelerated ray tracing, a feature the Vega 64X cannot offer at all. The modern PCIe 4.0 interface doubles the bus bandwidth available for data transfer compared to the Vega 64X's PCIe 3.0. The W7800 also supports DirectX 12 Ultimate and Vulkan 1.4, making it compatible with the latest graphics APIs. Its 576.0 GB/s memory bandwidth is 12.5% higher, and its pixel rate of 323.2 GPixel/s is more than 3.4x the Vega 64X's. The W7800 is the choice for any desktop workstation where maximum compute and memory capacity are priorities.

The AMD Radeon Pro Vega 64X wins only in the niche where physical constraints dictate the hardware. It is an IGP-class part with no power connectors and portable-device-dependent display outputs, meaning it fits into systems where a dual-slot, 280 mm card with two 8-pin connectors cannot. For a Mac laptop or compact all-in-one system, the Vega 64X is the only option between these two. Its 92nd percentile ranking is not weak in absolute terms, and its 12.03 TFLOPS FP32 performance is respectable for an integrated solution. The 2048-bit HBM2 bus, while slower overall at 512.0 GB/s, demonstrates that the Vega 64X was designed for bandwidth-sensitive workloads in a constrained power envelope. Its 250 W TDP is nearly identical to the W7800's 260 W, which is notable for a part that delivers only about a quarter of the FP32 compute. For users who cannot install a discrete card, the Vega 64X remains a functional choice, but the data shows no scenario where it outperforms the W7800 on measured performance.