AMD Radeon Pro 5300M vs AMD Radeon RX 6600S Comparison

The AMD Radeon RX 6600S is the clear performance leader over the AMD Radeon Pro 5300M, winning all eight head-to-head benchmark comparisons. The RX 6600S posts an average benchmark score of 10629 against 10013 for the Pro 5300M, a 6.2% advantage that understates its dominance in raw compute and graphics tests. The Pro 5300M’s only saving grace is its Metal API performance in Geekbench, where it scores 33626, a result the RX 6600S cannot match because it lacks a Metal benchmark entry.

Head-to-Head Benchmarks

The RX 6600S delivers its most decisive victory in Geekbench OpenCL, scoring 66435 versus 29252 for the Pro 5300M. That is a 127.1% delta, meaning the RX 6600S more than doubles the Pro 5300M’s compute throughput in this test. The gap narrows but remains massive in DirectX 11, where the RX 6600S scores 105 against 37, a 183.8% advantage. This is the single largest percentage delta in the entire comparison, indicating that the RX 6600S handles legacy DirectX titles with far greater ease.

DirectX 12 results follow the same pattern: the RX 6600S scores 56 versus 25, a 124% lead. DirectX 10 shows an identical relative gap, with the RX 6600S at 81 and the Pro 5300M at 36, a 125% delta. Even DirectX 9, the oldest API tested, favors the RX 6600S by 120%, with scores of 176 and 80 respectively. The RX 6600S also wins the Passmark G3D test by 113.7%, scoring 12649 versus 5918, which places it in the 49th percentile of all GPUs compared to the Pro 5300M’s 48th percentile.

Compute workloads show a slightly smaller but still commanding lead. In Passmark GPU Compute, the RX 6600S scores 4879 versus 2658, an 83.6% advantage. The least impressive win for the RX 6600S comes in the 2D graphics test, where it scores 647 against 582, an 11.2% delta. This is the only benchmark where the two GPUs are remotely close, suggesting that 2D performance is largely a wash between them. The data is unambiguous: the RX 6600S wins every single test, and in most cases by margins exceeding 100%.

FAQ

Q: How much faster is the RX 6600S in OpenCL compute?

A: The RX 6600S scores 66435 in Geekbench OpenCL, which is 127.1% higher than the Pro 5300M’s 29252. This is the largest absolute score difference in the comparison.

Q: Does the Pro 5300M win any benchmarks?

A: No. The head-to-head data shows the RX 6600S wins all eight tests, including every Passmark DirectX variant, G2D, G3D, and GPU Compute. The Pro 5300M’s only unique result is a Geekbench Metal score of 33626, which has no corresponding RX 6600S score.

Q: Which GPU has better DirectX 11 performance?

A: The RX 6600S scores 105 in Passmark DirectX 11 versus 37 for the Pro 5300M, a 183.8% lead. This is the largest percentage delta in the entire head-to-head set.

Q: How do their average benchmark scores compare?

A: The RX 6600S has an average benchmark score of 10629, while the Pro 5300M averages 10013. The RX 6600S’s nearest rival by average score is the AMD Radeon R9 M275X at 10582, a 0.4% delta, while the Pro 5300M’s closest rival is the NVIDIA Quadro K5100M at 10043, a -0.3% delta.

Q: What is the difference in 2D performance?

A: The RX 6600S scores 647 in Passmark G2D versus 582 for the Pro 5300M, an 11.2% advantage. This is the smallest delta between the two GPUs in any test.

Q: Which GPU has higher pixel and texture rates?

A: The RX 6600S has a pixel rate of 128.0 GPixel/s and a texture rate of 224.0 GTexel/s. The Pro 5300M has a pixel rate of 40.00 GPixel/s and a texture rate of 100.0 GTexel/s, meaning the RX 6600S is 220% higher in pixel rate and 124% higher in texture rate.

Architecture Differences

The two GPUs are built on different generations of AMD’s RDNA architecture. The RX 6600S uses RDNA 2.0 with the Navi 23 chip, while the Pro 5300M uses RDNA 1.0 with the Navi 14 chip. This architectural gap explains most of the performance delta. RDNA 2.0 brings hardware ray tracing support, with 28 ray tracing cores on the RX 6600S, while the Pro 5300M has no ray tracing cores at all. The RX 6600S also supports DirectX 12 Ultimate (12_2), whereas the Pro 5300M is limited to DirectX 12 (12_1).

Both GPUs are manufactured on TSMC’s 7 nm process, but the RX 6600S packs significantly more silicon. The RX 6600S has 11,060 million transistors on a 237 mm² die, giving a transistor density of 46.7M per mm². The Pro 5300M has 6,400 million transistors on a 158 mm² die, with a density of 40.5M per mm². This means the RX 6600S has 72.8% more transistors and a 50% larger die, allowing for substantially more compute resources.

The RX 6600S also features 1792 shading units, 112 texture mapping units, and 64 render output units. The Pro 5300M has 1280 shading units, 80 TMUs, and 32 ROPs. The RX 6600S therefore has 40% more shading units, 40% more TMUs, and double the ROP count. FP32 compute is 7.168 TFLOPS on the RX 6600S versus 3.200 TFLOPS on the Pro 5300M, a 124% advantage. FP16 performance follows the same 2:1 ratio, with 14.34 TFLOPS versus 6.400 TFLOPS.

Specification Differences

The most obvious specification gap is clock speed. The RX 6600S has a base clock of 1700 MHz, a boost clock of 2000 MHz, and a game clock of 1881 MHz. The Pro 5300M runs at a 1000 MHz base and 1250 MHz boost, with no game clock listed. This means the RX 6600S boosts 60% higher than the Pro 5300M’s maximum.

Memory configurations are similar in capacity and bus width but differ in speed. Both have 4 GB of GDDR6 on a 128-bit bus. However, the RX 6600S runs memory at 1750 MHz with 14 Gbps effective throughput, yielding 224.0 GB/s of bandwidth. The Pro 5300M runs memory at 1500 MHz with 12 Gbps effective, yielding 192.0 GB/s. The RX 6600S has 16.7% more memory bandwidth.

Power consumption is close but favors the RX 6600S. The RX 6600S has an 80 W TDP, while the Pro 5300M has an 85 W TDP. Both are integrated-class parts with no power connectors and portable-device-dependent display outputs. The RX 6600S uses a PCIe 4.0 x8 interface, and so does the Pro 5300M. The RX 6600S was released on 2022-01-03, while the Pro 5300M came out on 2019-11-12, a gap of over two years.

API support differs in one key area: the RX 6600S supports DirectX 12 Ultimate (12_2), while the Pro 5300M only supports DirectX 12 (12_1). Both support OpenGL 4.6 and Vulkan 1.4. The RX 6600S also has a predecessor listed as Polaris Mobile, while the Pro 5300M has no predecessor or successor listed. Neither GPU has a launch MSRP.

Where Each One Wins

The RX 6600S wins everywhere that matters for gaming and general compute. It dominates every DirectX test, from DirectX 9 to DirectX 12, with deltas ranging from 120% to 183.8%. It also wins OpenCL compute by 127.1%, making it the better choice for any workload that leverages OpenCL, such as rendering, physics simulation, or machine learning inference. The Passmark G3D score of 12649 versus 5918 confirms that the RX 6600S is the superior gaming GPU, landing in the 49th percentile of all GPUs versus the Pro 5300M’s 48th.

The Pro 5300M has one niche advantage: Metal API performance. Its Geekbench Metal score of 33626 is its highest benchmark result, and it is the only test where the Pro 5300M has a score that the RX 6600S cannot contest. This makes the Pro 5300M a more relevant choice for macOS or iOS development environments where Metal is the primary graphics API. The Pro 5300M also has a lower TDP of 85 W versus 80 W, but this difference is negligible in practice.

For users on Windows or Linux, the RX 6600S is the obvious pick. For users locked into Apple’s ecosystem or requiring Metal compute, the Pro 5300M’s 33626 Metal score is a data point the RX 6600S simply does not have. However, in every head-to-head test where both GPUs have scores, the RX 6600S wins. The Pro 5300M’s average benchmark score of 10013 places it at the 48th percentile, just one point below the RX 6600S, but this masks the fact that the RX 6600S wins by over 100% in most individual tests.

The Verdict

The AMD Radeon RX 6600S is the definitive winner for anyone running DirectX, OpenCL, or general-purpose graphics workloads. Its 183.8% lead in DirectX 11, 127.1% lead in OpenCL, and 113.7% lead in G3D are decisive. The 80 W TDP is lower than the Pro 5300M’s 85 W, and the RX 6600S still delivers over double the FP32 throughput at 7.168 TFLOPS versus 3.200 TFLOPS.

The Pro 5300M is only relevant if your workload requires the Metal API, where its 33626 Geekbench Metal score stands alone. It also has a lower transistor count and die size, meaning it is a smaller, simpler chip. But in any benchmark where both GPUs are measured, the Pro 5300M loses by margins that are too large to ignore.

Choose the RX 6600S for gaming, Windows/Linux compute, or any DirectX-based application. Choose the Pro 5300M only if you specifically need Metal performance in a Mac environment. The data shows no other scenario where the Pro 5300M is competitive.