AMD Radeon Pro 575X vs AMD Radeon RX Vega 64 Comparison

Head-to-Head Benchmarks

The direct benchmark comparison between the AMD Radeon RX Vega 64 and the AMD Radeon Pro 575X is limited to a single test, but the result is decisive. In Geekbench Metal, the RX Vega 64 scores 78,088 points against the Pro 575X’s 44,655 points. That is a 74.9% advantage for the RX Vega 64, a margin that dwarfs the 0.1% difference in their aggregate average benchmark scores. The aggregate scores tell a different story: the RX Vega 64’s average benchmark score is 39,879, while the Pro 575X sits at 39,836. The delta is a mere 0.1% in favor of the RX Vega 64, meaning that across the broader benchmark suite, these two cards are effectively tied.

The disparity between the single Geekbench Metal result and the aggregate averages reflects the nature of the workloads. The Metal test heavily favors the RX Vega 64’s raw compute resources, while other benchmarks in the aggregate pool may be less sensitive to those same resources. Looking at the nearest rivals for both cards reinforces this picture. The RX Vega 64’s nearest rival list includes the Pro 575X at 0.1% behind, the Pro 575 at 0.4% behind, the RX 9070 XT at 0.6% behind, and the RTX A500 Mobile at 0.8% behind. The Pro 575X’s nearest rivals mirror this: the RX Vega 64 is 0.1% ahead, the Pro 575 is 0.3% behind, the RX 9070 XT is 0.5% behind, and the RTX A500 Mobile is 0.7% behind. In both lists, the four cards cluster within a 0.9% band, indicating that these GPUs occupy nearly identical performance tiers in the aggregate.

The head-to-head table shows one win for the RX Vega 64 and zero for the Pro 575X. That single win, however, is substantial. A 74.9% lead in Geekbench Metal is not a marginal edge; it is a generational gap in a specific API. For applications that rely heavily on Metal performance, the RX Vega 64 is in a different class entirely. Yet the aggregate scores suggest that many other workloads do not scale with Metal performance, or that the Pro 575X compensates in other ways. The data indicates that the RX Vega 64 is the faster card in the one test where they are directly compared, but the overall benchmark averages put them within 0.1% of each other.

The Verdict

From the data alone, the choice between these two cards depends on the workload. For anyone prioritizing Geekbench Metal performance, the AMD Radeon RX Vega 64 is the clear pick. Its 78,088 score versus 44,655 represents a 74.9% advantage, which is the largest single-metric gap in this comparison. No other benchmark in the FACT PACK shows the Pro 575X winning any test. The wins column is 1-0 in favor of the RX Vega 64.

However, the aggregate benchmark scores complicate a simple recommendation. The RX Vega 64’s average benchmark score is 39,879, and the Pro 575X’s is 39,836. That 0.1% difference is within noise for most real-world use. Both cards sit at the 83rd percentile among all GPUs, meaning they outperform the vast majority of graphics hardware in the database. For workloads that are not Metal-centric, the two cards are likely to perform nearly identically. The Pro 575X’s profile as an integrated graphics processor (IGP) with a 150 W TDP and no power connectors suggests it is designed for a specific form factor, likely a laptop or all-in-one system. The RX Vega 64, by contrast, is a dual-slot, 295 W discrete card requiring a 600 W power supply and two 8-pin connectors.

If the choice is between these two for a system that can accommodate either, the RX Vega 64 wins on raw performance in the one benchmark where they are compared. But the aggregate scores indicate that the Pro 575X is not a slouch; it matches the RX Vega 64 across the broader test suite. The deciding factor should be the target application. For Metal-heavy tasks, pick the RX Vega 64. For everything else, the data shows they are effectively tied, and other factors like power draw and form factor become relevant. The Pro 575X’s 150 W TDP versus 295 W is a significant difference, but the FACT PACK does not include efficiency metrics, so any analysis of performance per watt is outside the scope of this data.

Architecture Differences

The two GPUs are built on fundamentally different architectures. The AMD Radeon RX Vega 64 uses the Vega 10 chip with GCN 5.0 architecture, while the AMD Radeon Pro 575X uses the Ellesmere chip with GCN 4.0 architecture. Both are manufactured on a 14 nm process at GlobalFoundries, but the similarities end there. The Vega 10 die measures 495 mm² and contains 12,500 million transistors, resulting in a transistor density of 25.3 million per square millimeter. The Ellesmere die is 232 mm² with 5,700 million transistors, giving a density of 24.6 million per square millimeter. The RX Vega 64 has more than twice the transistor count and more than double the die area.

The architecture generation difference is significant. GCN 5.0 is a newer revision than GCN 4.0, and the RX Vega 64’s feature set reflects that. In terms of compute resources, the RX Vega 64 has 4,096 shading units, 256 texture mapping units, and 64 raster output units. The Pro 575X has 2,048 shading units, 128 TMUs, and 32 ROPs. That is exactly half the shading units, half the TMUs, and half the ROPs. The RX Vega 64 also uses HBM2 memory with a 2048-bit bus, while the Pro 575X uses GDDR5 with a 256-bit bus. The memory technology and bus width are fundamentally different approaches to bandwidth delivery.

The RX Vega 64 supports DirectX 12 (12_1), while the Pro 575X supports DirectX 12 (12_0). Both support OpenGL 4.6 and Vulkan 1.3. The RX Vega 64’s FP32 compute is 12.66 TFLOPS, and its FP16 is 25.33 TFLOPS at a 2:1 ratio. The Pro 575X’s FP32 is 4.489 TFLOPS, and its FP16 is also 4.489 TFLOPS at a 1:1 ratio. The FP16 difference is stark: the RX Vega 64 offers over five times the half-precision throughput, and it does so with a 2:1 ratio, meaning it can double FP16 rate relative to FP32. The Pro 575X offers no such advantage, running FP16 at the same rate as FP32.

Specification Differences

The specification tables show several clear differences between the two cards. The RX Vega 64 has a base clock of 1247 MHz and a boost clock of 1546 MHz. The Pro 575X has no listed base or boost clocks in the FACT PACK, so no direct clock comparison is possible. The memory clocks differ: the RX Vega 64 runs at 945 MHz with 1890 Mbps effective, while the Pro 575X runs at 1695 MHz with 6.8 Gbps effective. The effective data rate is significantly higher on the Pro 575X, but the memory bus width is much narrower at 256 bits versus 2048 bits.

Memory capacity is 8 GB on the RX Vega 64 and 4 GB on the Pro 575X. Memory bandwidth is 483.8 GB/s on the RX Vega 64 versus 217.0 GB/s on the Pro 575X. The pixel rate is 98.94 GPixel/s for the RX Vega 64 and 35.07 GPixel/s for the Pro 575X. The texture rate is 395.8 GTexel/s versus 140.3 GTexel/s. The RX Vega 64’s TDP is 295 W, while the Pro 575X is 150 W. The RX Vega 64 is a dual-slot card with two 8-pin power connectors and a suggested 600 W power supply. The Pro 575X is an IGP with no power connectors and no suggested PSU.

The RX Vega 64 has specified dimensions: 280 mm in length, 111 mm in height, and 40 mm in width. The Pro 575X has no listed dimensions. Display outputs differ: the RX Vega 64 has 1x HDMI 2.0b and 3x DisplayPort 1.4a, while the Pro 575X is listed as "Portable Device Dependent." The RX Vega 64 has a launch MSRP of 499 USD; the Pro 575X has no launch MSRP listed. Release dates differ: the RX Vega 64 was released on 2017-08-06, and the Pro 575X on 2019-03-17. The RX Vega 64 has a predecessor (Polaris) and successor (Navi), while the Pro 575X has neither listed.

FAQ

Q: Which card has a higher average benchmark score?

A: The AMD Radeon RX Vega 64 has an average benchmark score of 39,879, while the AMD Radeon Pro 575X has an average score of 39,836. The RX Vega 64 leads by 0.1%.

Q: How much faster is the RX Vega 64 in Geekbench Metal?

A: The RX Vega 64 scores 78,088 in Geekbench Metal, while the Pro 575X scores 44,655. That is a 74.9% advantage for the RX Vega 64.

Q: What is the memory configuration difference?

A: The RX Vega 64 has 8 GB of HBM2 memory on a 2048-bit bus with 483.8 GB/s bandwidth. The Pro 575X has 4 GB of GDDR5 memory on a 256-bit bus with 217.0 GB/s bandwidth.

Q: Do both cards support the same DirectX version?

A: No. The RX Vega 64 supports DirectX 12 (12_1), while the Pro 575X supports DirectX 12 (12_0). Both support OpenGL 4.6 and Vulkan 1.3.

Q: What is the TDP difference between the two cards?

A: The RX Vega 64 has a TDP of 295 W and requires a 600 W power supply with two 8-pin connectors. The Pro 575X has a TDP of 150 W and uses no power connectors.

Q: Which card has more shading units?

A: The RX Vega 64 has 4,096 shading units, while the Pro 575X has 2,048. The RX Vega 64 also has 256 TMUs and 64 ROPs, compared to 128 TMUs and 32 ROPs on the Pro 575X.