AMD FirePro W4300 vs AMD Radeon Pro 555X Comparison

Head-to-Head Benchmarks

The database contains one directly comparable benchmark result between the AMD Radeon Pro 555X and the AMD FirePro W4300: the Geekbench OpenCL test. In this test, the Radeon Pro 555X scores 12628, while the FirePro W4300 scores 11225. That is a 12.5% advantage for the Radeon Pro 555X, a decisive margin in compute workloads.

This result aligns with the broader positioning of both cards in the database. The Radeon Pro 555X achieves an average benchmark score of 13321 across all recorded tests, which places it at the 54th percentile of all GPUs. The FirePro W4300 averages 11225, sitting at the 50th percentile. The 12.5% OpenCL gap is the headline figure, but the Radeon Pro 555X also carries additional benchmark data points that the FirePro W4300 lacks. In Geekbench Metal, the Radeon Pro 555X scores 14479, and in Geekbench Vulkan it scores 12855. These results suggest that the Radeon Pro 555X has a broader software compatibility profile, not just a raw compute advantage.

Looking at the nearest rivals for each card helps contextualize these scores. The Radeon Pro 555X average score of 13321 puts it within 0.2% of the NVIDIA GeForce GTX 480 (13300), 0.2% behind the AMD FirePro M6100 (13354), 0.3% behind the AMD Radeon RX 5500M (13356), and 0.4% behind the AMD Radeon HD 8950M (13376). These are extremely tight margins, meaning the Radeon Pro 555X sits in a crowded performance band where no single competitor dominates. The FirePro W4300, by contrast, averages 11225, which is statistically identical to the AMD Radeon Pro WX 3200 (11228, 0% delta). It is 0.3% behind the NVIDIA GeForce GTX 780M (11261), and 1.2% ahead of both the NVIDIA RTX PRO 6000 Blackwell Max-Q and the NVIDIA RTX PRO 6000D Blackwell Max-Q, which each score 11088. The FirePro W4300 is therefore competitive with a much older set of parts, while the Radeon Pro 555X trades blows with more recent mobile and desktop offerings.

The head-to-head data only records one test, but the magnitude of the OpenCL win is meaningful. A 12.5% advantage in a compute API that both cards support fully is not a marginal difference; it represents a real generational uplift in raw throughput. The Radeon Pro 555X wins the only direct comparison, and it does so with a comfortable margin.

FAQ

Q: Which GPU wins the only directly comparable benchmark in the database?

A: The AMD Radeon Pro 555X wins the Geekbench OpenCL test with a score of 12628 against 11225 for the AMD FirePro W4300, a 12.5% advantage.

Q: How does the Radeon Pro 555X compare to its nearest rivals in average score?

A: The Radeon Pro 555X averages 13321, which is 0.2% ahead of the NVIDIA GeForce GTX 480 (13300), 0.2% behind the AMD FirePro M6100 (13354), 0.3% behind the AMD Radeon RX 5500M (13356), and 0.4% behind the AMD Radeon HD 8950M (13376).

Q: Where does the FirePro W4300 sit relative to its closest competitors?

A: The FirePro W4300 averages 11225, matching the AMD Radeon Pro WX 3200 (11228, 0% delta) almost exactly. It trails the NVIDIA GeForce GTX 780M (11261) by 0.3% and leads both the NVIDIA RTX PRO 6000 Blackwell Max-Q and NVIDIA RTX PRO 6000D Blackwell Max-Q by 1.2%, as those two cards each score 11088.

Q: Does the Radeon Pro 555X have additional benchmark coverage beyond OpenCL?

A: Yes. The database lists Geekbench Metal and Geekbench Vulkan results for the Radeon Pro 555X, with scores of 14479 and 12855 respectively. No corresponding Metal or Vulkan results are recorded for the FirePro W4300.

Q: What is the percentile ranking difference between the two cards?

A: The Radeon Pro 555X sits at the 54th percentile of all GPUs, while the FirePro W4300 sits at the 50th percentile.

Q: Which card has a higher theoretical texture rate?

A: The FirePro W4300 has a texture rate of 44.64 GTexel/s, slightly higher than the Radeon Pro 555X at 43.54 GTexel/s, despite the Radeon Pro 555X winning the real-world OpenCL benchmark.

Where Each One Wins

The AMD Radeon Pro 555X is the clear winner in compute performance. It takes the sole head-to-head benchmark, the Geekbench OpenCL test, by 12.5%. It also posts a higher average benchmark score (13321 vs 11225) and a higher percentile ranking (54th vs 50th). Beyond raw compute, the Radeon Pro 555X offers additional benchmark coverage in Metal and Vulkan, both of which return strong scores (14479 and 12855). This makes it the more versatile choice for workloads that span multiple graphics APIs. The Radeon Pro 555X also supports Vulkan 1.3, whereas the FirePro W4300 only supports Vulkan 1.2.170, so software targeting newer Vulkan features will favor the Radeon Pro 555X.

The AMD FirePro W4300 does retain a few narrow advantages. Its pixel rate is 14.88 GPixel/s versus 14.51 GPixel/s for the Radeon Pro 555X, and its texture rate is 44.64 GTexel/s versus 43.54 GTexel/s. These are small but real margins in fill-rate-oriented tasks. The FirePro W4300 also has a lower TDP of 50 W compared to 75 W for the Radeon Pro 555X, which matters in power-constrained environments. It is a single-slot card with four mini-DisplayPort 1.2 outputs, whereas the Radeon Pro 555X is an integrated GPU with display outputs that are described as "Portable Device Dependent." In practical terms, the FirePro W4300 is a discrete workstation card that slots into a desktop PCIe slot; the Radeon Pro 555X is an IGP designed for a portable device, meaning its display connectivity is defined by the host laptop.

For a user choosing between these two, the decision comes down to the host platform. The Radeon Pro 555X is an integrated part with no power connectors and a PCIe 3.0 x8 interface; it only exists inside a Mac laptop. The FirePro W4300 is a standalone single-slot card with a PCIe 3.0 x16 interface, a 250 W suggested PSU, and a physical length of 171 mm (6.7 inches) with a height of 69 mm (2.7 inches). The Radeon Pro 555X wins on compute and API support, while the FirePro W4300 wins on thermal envelope, fill rate, and discrete card flexibility.

Specification Differences

The two cards share several core specifications. Both have 4 GB of GDDR5 memory on a 128-bit bus, 768 shading units, 48 texture mapping units, and 16 ROPs. Both support DirectX 12 (12_0) and OpenGL 4.6. Both are end-of-life products, and neither has a recorded launch MSRP.

The differences begin with memory clock. The Radeon Pro 555X runs its memory at 1470 MHz with 5.9 Gbps effective, delivering 94.08 GB/s of bandwidth. The FirePro W4300 runs its memory at 1500 MHz with 6 Gbps effective, delivering 96.00 GB/s. The FirePro W4300 has a slightly higher memory bandwidth, though the difference is small.

The Radeon Pro 555X has a TDP of 75 W and is an IGP with no power connectors. The FirePro W4300 has a TDP of 50 W, is a single-slot card, also has no power connectors, and lists a suggested PSU of 250 W. The bus interface differs as well: the Radeon Pro 555X uses PCIe 3.0 x8, while the FirePro W4300 uses PCIe 3.0 x16.

Display outputs are another clear differentiator. The Radeon Pro 555X has outputs that are "Portable Device Dependent," meaning the host laptop defines them. The FirePro W4300 has four mini-DisplayPort 1.2 outputs.

The release dates are far apart. The FirePro W4300 was released on 2015-11-30, while the Radeon Pro 555X was released on 2018-07-15. The FirePro W4300 also has a recorded predecessor (FirePro Terascale) and successor (Radeon Pro GCN), while the Radeon Pro 555X has neither in the database.

Architecture Differences

The architectural gap between these two GPUs is substantial. The Radeon Pro 555X uses the Polaris 21 chip built on GCN 4.0, while the FirePro W4300 uses the Bonaire chip built on GCN 2.0. This is a two-generation jump in the GCN lineage.

The manufacturing process tells a similar story. The Radeon Pro 555X is fabricated on a 14 nm process at GlobalFoundries, packing 3,000 million transistors into a 123 mm² die. That yields a transistor density of 24.4 million transistors per square millimeter. The FirePro W4300 is fabricated on a 28 nm process at TSMC, with 2,080 million transistors on a 160 mm² die, for a density of 13.0 million transistors per square millimeter. The Radeon Pro 555X achieves nearly double the transistor density despite having fewer total transistors, and it does so on a smaller die.

The FP32 compute figures reflect the architectural improvements. The Radeon Pro 555X delivers 1,393.2 GFLOPS of FP32 performance, while the FirePro W4300 delivers 1,428.5 GFLOPS. Interestingly, the FirePro W4300 has a slightly higher FP32 number despite losing the OpenCL benchmark. The Radeon Pro 555X also supports FP16 at a 1:1 ratio (1,393.2 GFLOPS), while the FirePro W4300 has no recorded FP16 capability.

API support differs in Vulkan versions. The Radeon Pro 555X supports Vulkan 1.3, while the FirePro W4300 supports Vulkan 1.2.170. Both support DirectX 12 (12_0) and OpenGL 4.6, so the main software compatibility gap is in the newer Vulkan revision.

The release timing and architecture generation explain the benchmark results. The Radeon Pro 555X came out over two and a half years after the FirePro W4300, and its GCN 4.0 design on 14 nm brings architectural efficiencies that a 28 nm GCN 2.0 part cannot match. The FirePro W4300 compensates with slightly higher clocks and fill rates, but the newer architecture wins the compute benchmark that matters.