AMD Radeon Pro 5500 XT vs AMD Radeon Pro 580 Comparison

The AMD Radeon Pro 5500 XT and AMD Radeon Pro 580 represent two distinct eras of Apple-focused workstation graphics, separated by a generational shift in architecture and manufacturing. Benchmark data from Geekbench reveals a clear but nuanced picture: the Radeon Pro 5500 XT wins the overall average benchmark score decisively with 45,384 against 40,318 for the Radeon Pro 580, a difference of roughly 12.6%. However, this aggregate figure masks significant variation across individual API tests, with the older Radeon Pro 580 actually claiming victory in one specific workload. The data suggests that while the newer Navi-based card is generally faster, the transition from GCN to RDNA brought both gains and regressions that are worth investigating in detail.

Head-to-Head Benchmarks

The most dramatic divergence appears in the Geekbench Metal test, where the Radeon Pro 5500 XT scores 54,779 against the Radeon Pro 580’s 39,213. This represents a 39.7% advantage for the 5500 XT, the largest margin in any of the three head-to-head comparisons. Metal is Apple’s low-level graphics API, and the data strongly suggests that the RDNA 1.0 architecture handles its compute and rendering workloads far more efficiently than the older GCN 4.0 design. For applications that leverage Metal — which includes most modern macOS creative software — the newer card holds a substantial performance lead that would be immediately noticeable in GPU-bound tasks.

The OpenCL results tell a similar but less extreme story. Here, the Radeon Pro 5500 XT scores 41,772, which is 8.6% higher than the Radeon Pro 580’s 38,457. While still a clear win for the newer card, the margin is significantly smaller than in Metal. This narrower gap hints that OpenCL workloads may not exploit the architectural advantages of RDNA as thoroughly, or that the Radeon Pro 580’s higher shading unit count — 2,304 versus 1,536 — helps it remain competitive in certain parallel compute patterns. The 5500 XT still wins, but the data shows it is not a universal trouncing.

Interestingly, the Vulkan benchmark flips the result entirely. In this test, the Radeon Pro 580 scores 43,285, while the Radeon Pro 5500 XT manages only 39,601. That gives the older card an 8.5% victory. This is a notable outlier, as Vulkan is a cross-platform API that is generally well-optimized on AMD hardware. The fact that the 580 wins here could indicate that its larger memory bus (256-bit vs 128-bit) and higher texture fill rate provide benefits in specific Vulkan rendering paths, or that the RDNA implementation has a driver-level inefficiency in this particular workload. Regardless, the data shows that the Radeon Pro 580 is not simply obsolete; it retains a niche where it outperforms its successor.

Architecture Differences

The fundamental divergence between these two GPUs lies in their underlying architectures and manufacturing processes. The Radeon Pro 5500 XT uses the Navi 14 chip built on RDNA 1.0, fabricated on TSMC’s 7 nm process. In contrast, the Radeon Pro 580 uses the Ellesmere chip based on GCN 4.0, produced on GlobalFoundries’ 14 nm node. This process shrink is substantial: the 5500 XT packs 6,400 million transistors into a die size of 158 mm², yielding a transistor density of 40.5 million per square millimeter. The 580, meanwhile, contains 5,700 million transistors on a much larger 232 mm² die, resulting in a density of just 24.6 million per square millimeter. The newer process allows the 5500 XT to achieve higher efficiency per transistor, which is reflected in its lower 125 W thermal design power compared to the 580’s 185 W.

The core configurations also differ significantly. The 5500 XT has 1,536 shading units, 96 texture mapping units, and 32 ROPs. The 580 has more of everything on paper: 2,304 shading units, 144 TMUs, and the same 32 ROPs. However, the clock speeds tell a different story. The 5500 XT runs at a base clock of 1187 MHz and a boost clock of 1757 MHz, while the 580 is slower at 1100 MHz base and 1200 MHz boost. This clock advantage helps the 5500 XT overcome its fewer cores, resulting in comparable raw compute figures: the 5500 XT delivers 5.398 TFLOPS FP32, while the 580 delivers 5.530 TFLOPS. The texture rate slightly favors the 580 at 172.8 GTexel/s versus 168.7 GTexel/s, but the pixel rate heavily favors the 5500 XT at 56.22 GPixel/s versus 38.40 GPixel/s, indicating better efficiency in rasterization.

Memory architecture is another major point of divergence. Both cards have 8 GB of VRAM, but the 5500 XT uses GDDR6 on a 128-bit bus, achieving a bandwidth of 224.0 GB/s. The 580 uses GDDR5 on a 256-bit bus, achieving 217.0 GB/s. Despite the narrower bus, the faster GDDR6 memory gives the 5500 XT a slight bandwidth advantage. The effective memory speed is 14 Gbps for the 5500 XT versus 6.8 Gbps for the 580. Additionally, the 5500 XT supports PCIe 4.0 x8, while the 580 uses PCIe 3.0 x16; the newer standard offers higher per-lane bandwidth, though the practical impact depends on workload.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The AMD Radeon Pro 5500 XT has a higher average benchmark score of 45,384, compared to 40,318 for the AMD Radeon Pro 580. This places the 5500 XT at the 84th percentile of all GPUs, while the 580 sits at the 82nd percentile.

Q: Is the Radeon Pro 580 faster in any workload?

A: Yes, the data shows the Radeon Pro 580 wins the Geekbench Vulkan test, scoring 43,285 against the 5500 XT’s 39,601, a margin of 8.5%. This is the only head-to-head test where the 580 comes out ahead.

Q: What explains the 5500 XT’s large lead in Metal performance?

A: The 5500 XT scores 54,779 in Geekbench Metal, which is 39.7% higher than the 580’s 39,213. This likely stems from its RDNA 1.0 architecture, which is designed to be more efficient per clock, combined with its higher boost clock of 1757 MHz versus 1200 MHz for the 580.

Q: How do the memory systems compare between the two cards?

A: Both have 8 GB of VRAM, but the 5500 XT uses GDDR6 with a 128-bit bus and 224.0 GB/s bandwidth, while the 580 uses GDDR5 with a 256-bit bus and 217.0 GB/s bandwidth. The 5500 XT’s faster memory clock (14 Gbps effective vs 6.8 Gbps) compensates for its narrower bus.

Q: Which card has more shading units?

A: The Radeon Pro 580 has more shading units, with 2,304 compared to 1,536 on the Radeon Pro 5500 XT. However, the 5500 XT’s higher clocks (1187 MHz base, 1757 MHz boost) allow it to nearly match the 580’s FP32 throughput of 5.530 TFLOPS, with the 5500 XT achieving 5.398 TFLOPS.

Q: Are these cards still in production?

A: No, both are listed as end-of-life products. The Radeon Pro 580 was released earlier, on 2017-06-04, while the Radeon Pro 5500 XT was released later, on 2020-08-03.

Specification Differences

The two GPUs diverge on nearly every key specification. The process node differs significantly: the 5500 XT uses 7 nm TSMC fabrication, while the 580 uses 14 nm GlobalFoundries. Transistor counts are close, 6,400 million for the 5500 XT versus 5,700 million for the 580, but the die size is much smaller on the newer card (158 mm² vs 232 mm²), resulting in a transistor density of 40.5M/mm² versus 24.6M/mm². Clock speeds are higher on the 5500 XT, with a base of 1187 MHz and boost of 1757 MHz, compared to 1100 MHz base and 1200 MHz boost on the 580. Memory type is GDDR6 for the 5500 XT versus GDDR5 for the 580, with effective speeds of 14 Gbps versus 6.8 Gbps. Bus width is narrower on the 5500 XT (128-bit vs 256-bit), but bandwidth is slightly higher (224.0 GB/s vs 217.0 GB/s). Shading units and TMUs are more numerous on the 580 (2,304 and 144) than on the 5500 XT (1,536 and 96), while ROPs are equal at 32. Pixel rate favors the 5500 XT (56.22 GPixel/s vs 38.40 GPixel/s), while texture rate favors the 580 (172.8 GTexel/s vs 168.7 GTexel/s). FP32 compute is nearly identical: 5.398 TFLOPS for the 5500 XT and 5.530 TFLOPS for the 580. The 5500 XT offers FP16 at 10.80 TFLOPS (2:1 ratio), while the 580 is limited to 5.530 TFLOPS (1:1 ratio). TDP is lower on the 5500 XT at 125 W versus 185 W. The 5500 XT supports PCIe 4.0 x8, while the 580 uses PCIe 3.0 x16. Display outputs differ: the 5500 XT has no outputs, while the 580 is portable device dependent. The 5500 XT supports DirectX 12_1 and Vulkan 1.4, while the 580 supports DirectX 12_0 and Vulkan 1.3. Both support OpenGL 4.6.

The Verdict

Based strictly on benchmark data, the AMD Radeon Pro 5500 XT is the superior overall performer. It wins the average benchmark score (45,384 vs 40,318), wins two of the three head-to-head tests, and achieves a higher percentile ranking (84th vs 82nd). Its 39.7% advantage in Geekbench Metal is particularly compelling for macOS users, as Metal is the primary graphics API for professional applications on that platform. The 5500 XT also offers superior efficiency, with a lower 125 W TDP versus 185 W, and a more advanced feature set including FP16 support at 2:1 ratio and PCIe 4.0. The data clearly indicates that for the vast majority of workloads, the 5500 XT is the better choice.

However, the Radeon Pro 580 is not without merit. Its win in Vulkan (43,285 vs 39,601) suggests that it may still be preferable for specific Vulkan-based applications or games. Its higher shading unit count and texture rate could also benefit certain compute tasks that are not well-represented in the benchmark suite. For users who exclusively run Vulkan workloads, the 580 might be the more sensible pick, despite its older architecture and higher power draw. But for general-purpose GPU tasks, especially those using Metal or OpenCL, the 5500 XT’s wins are decisive.

Where Each One Wins

The AMD Radeon Pro 5500 XT wins in Metal-based workloads, where its 39.7% lead over the 580 (54,779 vs 39,213) is the strongest argument for its adoption. It also wins in OpenCL, posting a 8.6% advantage (41,772 vs 38,457). These are the two most common APIs for professional rendering, video editing, and compute acceleration on macOS. The 5500 XT’s higher pixel rate and FP16 capabilities further bolster its case for tasks involving high-resolution displays, post-processing effects, or half-precision machine learning inference. Its lower TDP also makes it more suitable for compact or thermally constrained systems.

The AMD Radeon Pro 580 wins in Vulkan-based workloads, with an 8.5% advantage (43,285 vs 39,601). This makes it the better option for Vulkan-exclusive applications, which are more common in cross-platform game engines and certain scientific visualization tools. The 580’s higher texture rate (172.8 GTexel/s vs 168.7 GTexel/s) and larger number of shading units could also give it an edge in texture-heavy or highly parallel compute tasks that scale with core count rather than clock speed. For users whose primary software stack relies on Vulkan and who do not utilize Metal, the 580 remains a viable, albeit older, option.