AMD Radeon R8 M445DX vs Intel UHD Graphics P630 Comparison

The Verdict

The data places the Intel UHD Graphics P630 ahead of the AMD Radeon R8 M445DX in the only directly comparable benchmark. The Intel part scores 5111 points in Geekbench OpenCL, which is 8.1% higher than the AMD part's 4727 points. This margin is meaningful in this performance tier, where both products sit near the bottom of the overall GPU population. The Intel UHD Graphics P630 holds a 31st percentile ranking across all GPUs, while the AMD Radeon R8 M445DX sits at the 27th percentile. For a user choosing between these two, the Intel solution offers the higher average benchmark score: 5370 versus 4727. The Intel part also benefits from a more recent release date, coming to market in May 2020, whereas the AMD part launched in May 2016. Given the measured data, the Intel UHD Graphics P630 is the stronger option for general compute workloads as captured by OpenCL. The AMD part does offer a higher raw FP32 throughput on paper, but the recorded benchmark results do not reflect that advantage in practice. For legacy systems where the AMD Radeon R8 M445DX is the only option, it remains a usable integrated solution, but the data suggests it is the weaker of the two in real-world OpenCL execution.

Architecture Differences

The two GPUs come from different architectural lineages and manufacturing processes. The Intel UHD Graphics P630 is built on the Generation 9.5 architecture, using the Comet Lake GT2 chip fabricated on Intel's 14 nm+++ process. The AMD Radeon R8 M445DX uses the GCN 3.0 architecture with the Meso chip, fabricated by TSMC on a 28 nm process. This process gap is substantial: Intel's 14 nm+++ is a mature, refined node, while AMD's 28 nm is an older, larger geometry. The AMD chip contains 1,550 million transistors on a 125 mm² die, giving a transistor density of 12.4 million per square millimeter. The Intel chip does not have published transistor or die size data in the database, so a direct density comparison is not possible.

The compute configurations differ significantly. The Intel UHD Graphics P630 has 192 shading units, 24 texture mapping units, and 3 render output units. The AMD Radeon R8 M445DX has 320 shading units, 20 TMUs, and 8 ROPs. This means AMD has 66.7% more shading units but 16.7% fewer TMUs and 166.7% more ROPs. The clock speeds also diverge: the Intel part runs at a base of 350 MHz with a boost of 1200 MHz, while the AMD part runs at a base of 780 MHz with a boost of 1021 MHz. Despite the higher AMD base clock, the Intel boost clock is 17.5% higher. The resulting pixel and texture rates reflect these differences. The AMD part achieves 8.168 GPixel/s, which is 126.9% higher than the Intel part's 3.600 GPixel/s. However, the Intel part achieves 28.80 GTexel/s, which is 41.0% higher than the AMD part's 20.42 GTexel/s. The FP32 throughput favors AMD at 653.4 GFLOPS versus Intel's 460.8 GFLOPS, a 41.8% advantage. The FP16 rates also differ: Intel supports 2:1 FP16 with 921.6 GFLOPS, while AMD supports 1:1 FP16 with 653.4 GFLOPS.

The memory subsystems are similar in that both use system shared memory with system dependent bandwidth. Neither has dedicated VRAM. The bus interfaces differ: Intel uses a Ring Bus, while AMD uses an IGP interface. Both are integrated graphics parts with no expansion slot width. The API support shows a slight difference: Intel supports DirectX 12 (12_1) and Vulkan 1.3, while AMD supports DirectX 12 (12_0) and Vulkan 1.2.170. Both support OpenGL 4.6. The display outputs are platform dependent for both, with Intel's being motherboard dependent and AMD's being portable device dependent. The Intel part has a TDP of 15 W, while the AMD part has no TDP listed in the database.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The Intel UHD Graphics P630 has an average benchmark score of 5370, which is 643 points higher than the AMD Radeon R8 M445DX's average score of 4727.

Q: How much faster is the Intel part in the Geekbench OpenCL test?

A: The Intel UHD Graphics P630 scores 5111, while the AMD Radeon R8 M445DX scores 4727. This gives Intel an 8.1% lead in that specific test.

Q: Which GPU has more shading units?

A: The AMD Radeon R8 M445DX has 320 shading units, which is 128 more than the Intel UHD Graphics P630's 192 shading units.

Q: What is the difference in boost clock speeds?

A: The Intel UHD Graphics P630 boosts to 1200 MHz, while the AMD Radeon R8 M445DX boosts to 1021 MHz. The Intel part runs 179 MHz higher at boost.

Q: Which GPU has the higher pixel rate?

A: The AMD Radeon R8 M445DX has a pixel rate of 8.168 GPixel/s, which is more than double the Intel UHD Graphics P630's 3.600 GPixel/s.

Q: Do both GPUs support the same DirectX version?

A: No. The Intel UHD Graphics P630 supports DirectX 12 (12_1), while the AMD Radeon R8 M445DX supports DirectX 12 (12_0). The Intel part has a slightly higher feature level.

Specification Differences

The two GPUs differ across nearly every recorded specification. Starting with the process node, Intel uses 14 nm+++ fabricated in-house, while AMD uses 28 nm fabricated by TSMC. The AMD part is the only one with published transistor data: 1,550 million transistors on a 125 mm² die with a density of 12.4 million per square millimeter. The Intel part has no such data recorded.

Clock speeds show a split: the AMD part has a higher base clock at 780 MHz versus Intel's 350 MHz, but the Intel part has a higher boost clock at 1200 MHz versus AMD's 1021 MHz. The shading unit count favors AMD at 320 versus 192, as does the ROP count at 8 versus 3. However, the TMU count favors Intel at 24 versus 20. The pixel rate is higher on AMD at 8.168 GPixel/s versus 3.600 GPixel/s, while the texture rate is higher on Intel at 28.80 GTexel/s versus 20.42 GTexel/s. The FP32 throughput is higher on AMD at 653.4 GFLOPS versus 460.8 GFLOPS. The FP16 throughput is higher on Intel at 921.6 GFLOPS versus 653.4 GFLOPS, with Intel using a 2:1 ratio and AMD using a 1:1 ratio.

The TDP is listed only for Intel at 15 W; the AMD part has no TDP value. The bus interface differs: Intel uses Ring Bus, AMD uses IGP. The display outputs are motherboard dependent for Intel and portable device dependent for AMD. The API support shows Intel with DirectX 12 (12_1) and Vulkan 1.3, while AMD has DirectX 12 (12_0) and Vulkan 1.2.170. Both support OpenGL 4.6. The release dates are far apart: Intel released on May 12, 2020, and AMD released on May 14, 2016. Both are marked as end-of-life production status. Neither has a launch MSRP recorded. Both use system shared memory with system dependent bandwidth, and both are integrated graphics parts with no slot width.

Head-to-Head Benchmarks

The only direct head-to-head benchmark recorded in the database is the Geekbench OpenCL test. In this test, the Intel UHD Graphics P630 scores 5111, while the AMD Radeon R8 M445DX scores 4727. The Intel part wins with an 8.1% margin. This is a clear victory for Intel, and it is the only benchmark where both parts have matching scores. However, the broader benchmark data tells a more complete story. The Intel part also has a Geekbench Vulkan score of 5628, which has no counterpart for the AMD part. This additional data point contributes to Intel's average benchmark score of 5370. The AMD part's average score of 4727 is based solely on its OpenCL result.

Looking at the nearest rivals for each GPU provides context for these scores. The Intel UHD Graphics P630's nearest competitors are the AMD Radeon R7 M445 (5358, 0.2% above), the AMD Radeon R7 M365X (5416, 0.8% below), the NVIDIA GeForce 840M (5322, 0.9% above), and the NVIDIA GeForce 930A (5317, 1% above). This places the Intel part within a tight cluster where the spread between the best and worst rival is only about 2%. The Intel part's average score of 5370 sits almost exactly in the middle of this group, indicating it is a typical performer for its class.

The AMD Radeon R8 M445DX's nearest rivals are the AMD Radeon R5 M335 (4752, 0.5% below), the NVIDIA Quadro P400 (4684, 0.9% above), the AMD Radeon R5 M255 (4788, 1.3% below), and the NVIDIA GeForce RTX 3080 12 GB (4791, 1.3% below). The presence of the RTX 3080 12 GB in this list is notable given its far higher performance class, but the average score of 4791 for that part is likely an artifact of the specific workload. The AMD R8 M445DX's average of 4727 places it at the lower end of its rival cluster, with only the Quadro P400 scoring lower.

The percentile rankings reinforce this picture. The Intel part sits at the 31st percentile across all GPUs, while the AMD part sits at the 27th percentile. This means the Intel part outperforms a slightly larger fraction of the overall GPU population. The 8.1% OpenCL lead, combined with the presence of a Vulkan score on the Intel side, explains the 643-point gap in average scores. The AMD part does have theoretical advantages in shading units and FP32 throughput, but the recorded benchmark results do not translate those into a higher score. The Intel part's higher boost clock and superior texture rate appear to be more impactful in the OpenCL workload captured by the database.