AMD Radeon Pro 555X vs AMD Radeon Pro 560X Comparison

Where Each One Wins

The benchmark data splits these two mobile workstation GPUs along API lines. The AMD Radeon Pro 560X takes the majority of recorded wins, securing 2 out of 3 head-to-head tests. Its victories come in Geekbench Metal and Geekbench Vulkan, where it posts substantially higher scores. The AMD Radeon Pro 555X claims a single, but significant, win in Geekbench OpenCL.

Looking at the average benchmark scores, the 560X sits at 15082, while the 555X averages 13321. That places the 560X roughly 13.2% higher overall. In terms of global percentile ranking, the 560X lands at the 57th percentile of all GPUs, while the 555X sits at the 54th percentile. Both are mid-pack performers, but the 560X consistently edges ahead in the majority of workloads.

The use-case split is clear. For applications that leverage Metal or Vulkan APIs, the 560X is the stronger choice. For OpenCL-focused tasks, the 555X unexpectedly takes the lead. This makes the 555X a niche pick for specific compute workloads, while the 560X serves as the more broadly capable part for graphics-oriented tasks.

Architecture Differences

Both GPUs share the same fundamental architecture. They are built on the Polaris 21 chip, using GCN 4.0 architecture, produced on a 14 nm process at GlobalFoundries. Both integrate 3,000 million transistors on a 123 mm² die, yielding a transistor density of 24.4M per mm². The memory subsystem is identical: 4 GB of GDDR5 on a 128-bit bus, with 94.08 GB/s bandwidth and a memory clock of 1470 MHz (5.9 Gbps effective).

The core differences lie in the compute unit configuration. The 560X features 1024 shading units, 64 texture mapping units (TMUs), and 16 raster operation units (ROPs). The 555X scales down to 768 shading units, 48 TMUs, and retains 16 ROPs. This means the 560X has 33% more shading units and 33% more TMUs, which directly drives its higher theoretical throughput.

These core counts translate into different rate figures. The 560X achieves a pixel rate of 16.06 GPixel/s and a texture rate of 64.26 GTexel/s. The 555X delivers 14.51 GPixel/s and 43.54 GTexel/s. In floating-point performance, the 560X reaches 2.056 TFLOPS for both FP32 and FP16 (1:1 ratio), while the 555X delivers 1,393.2 GFLOPS for both. The 560X therefore provides roughly 47.6% more FP32 compute capacity.

Both cards share the same API support: DirectX 12 (12_0), OpenGL 4.6, and Vulkan 1.3. They also share the same TDP of 75 W, slot width of IGP, and no power connectors. The bus interface is PCIe 3.0 x8 for both, and display outputs are listed as portable device dependent. Both are end-of-life products released on the same date.

Head-to-Head Benchmarks

The Geekbench Metal test shows the 560X winning decisively. It scores 18763 against the 555X's 14479, a delta of 29.6%. This is the largest percentage gap in the 560X's favor among the three tests. For Metal-based rendering and compute, the extra shading units and texture units provide a clear advantage.

The Geekbench Vulkan test also goes to the 560X, with a score of 16819 versus 12855. That represents a 30.8% lead, the single biggest margin recorded in either direction. Vulkan workloads clearly benefit from the 560X's higher core count and texture throughput.

The surprise comes in Geekbench OpenCL. Here the 555X wins, scoring 12628 against the 560X's 9663. The delta is -23.5% from the 560X's perspective, meaning the 555X is 23.5% faster in this specific test. This is a notable inversion. The 555X has fewer cores and lower theoretical compute, yet it outperforms in OpenCL. The recorded data does not explain why, but the consistency of the result suggests a driver or workload characteristic that favors the smaller configuration.

Looking at the nearest rivals provides context. The 560X's average score of 15082 sits just 0.1% above the NVIDIA GeForce GTX 660 Ti (15063), and 0.6% below the AMD Radeon RX 7600 (15171). It trails the NVIDIA GeForce RTX 3050 OEM (15199) by 0.8% and the AMD Radeon 680M (15270) by 1.2%. This places the 560X in a tight cluster of comparable desktop and mobile GPUs.

The 555X's average of 13321 is 0.2% above the NVIDIA GeForce GTX 480 (13300) and 0.2% below the AMD FirePro M6100 (13354). It also sits 0.3% under the AMD Radeon RX 5500M (13356) and 0.4% under the AMD Radeon HD 8950M (13376). The 555X is thus grouped with older high-end parts and mid-range mobile offerings.

FAQ

Q: Which GPU wins the majority of benchmark tests?

A: The AMD Radeon Pro 560X wins 2 out of 3 head-to-head tests, taking Geekbench Metal and Geekbench Vulkan. The AMD Radeon Pro 555X wins only the Geekbench OpenCL test.

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

A: The 560X has an average benchmark score of 15082, while the 555X averages 13321. That gives the 560X an overall lead of approximately 13.2%.

Q: How do these GPUs compare to their nearest rivals?

A: The 560X's average score is within 1.2% of the NVIDIA GeForce RTX 3050 OEM, AMD Radeon RX 7600, AMD Radeon 680M, and NVIDIA GeForce GTX 660 Ti. The 555X's average is within 0.4% of the AMD Radeon HD 8950M, AMD Radeon RX 5500M, AMD FirePro M6100, and NVIDIA GeForce GTX 480.

Q: Which GPU has better theoretical compute performance?

A: The 560X is significantly ahead. It delivers 2.056 TFLOPS FP32 and FP16, versus 1,393.2 GFLOPS for the 555X. The 560X also has higher pixel and texture rates: 16.06 GPixel/s and 64.26 GTexel/s versus 14.51 GPixel/s and 43.54 GTexel/s.

Q: Do both GPUs have the same memory configuration?

A: Yes. Both feature 4 GB of GDDR5 on a 128-bit bus, with 94.08 GB/s bandwidth and a memory clock of 1470 MHz (5.9 Gbps effective).

Q: Are there any architectural differences besides core counts?

A: No. Both use the Polaris 21 chip on GCN 4.0 architecture, 14 nm process, 3,000 million transistors, and a 123 mm² die. They share identical API support, TDP of 75 W, and PCIe 3.0 x8 interface.

Specification Differences

The two GPUs differ in exactly five specification fields, all related to the compute core configuration and derived rates:

• Shading Units: The 560X has 1024, the 555X has 768.
• TMUs: The 560X has 64, the 555X has 48.
• Pixel Rate: The 560X is rated at 16.06 GPixel/s, the 555X at 14.51 GPixel/s.
• Texture Rate: The 560X achieves 64.26 GTexel/s, the 555X achieves 43.54 GTexel/s.
• FP32/FP16 Performance: The 560X delivers 2.056 TFLOPS, the 555X delivers 1,393.2 GFLOPS.

All other specifications are identical. Both use the same chip (Polaris 21), architecture (GCN 4.0), process node (14 nm), foundry (GlobalFoundries), transistor count (3,000 million), die size (123 mm²), and transistor density (24.4M / mm²). Memory size, type, bus width, and bandwidth are the same. ROPs remain at 16 for both. TDP, slot width, power connectors, bus interface, display outputs, and API support are unchanged. Both were released on the same date and are end-of-life products.

The practical effect of these differences is straightforward. The 560X has 33% more shading units and TMUs, which drives its higher texture and pixel rates. The FP32 output scales with the shading unit count, giving the 560X a 47.6% compute advantage. Yet the OpenCL result shows that raw specifications do not always dictate benchmark outcomes, as the smaller 555X wins that single test by 23.5%.