AMD Radeon R6 M255DX vs Intel HD Graphics 630 Comparison

FAQ

Q: How do the two GPUs compare in overall benchmark performance?

A: The AMD Radeon R6 M255DX records an average benchmark score of 4867, while the Intel HD Graphics 630 records an average of 4075. The AMD part sits at the 28th percentile of all GPUs, and the Intel part sits at the 24th percentile.

Q: What is the strongest result for the AMD Radeon R6 M255DX?

A: In the Geekbench Vulkan test, the AMD Radeon R6 M255DX scores 4867, which places it 37.5% ahead of the Intel HD Graphics 630's Vulkan score of 3540.

Q: Which GPU has the higher boost clock?

A: The AMD Radeon R6 M255DX has a boost clock of 855 MHz, while the Intel HD Graphics 630 has a boost clock of 1000 MHz, making the Intel part faster in raw clock speed.

Q: What is the FP32 performance difference between the two?

A: The AMD Radeon R6 M255DX delivers 547.2 GFLOPS of FP32 compute, while the Intel HD Graphics 630 delivers 384.0 GFLOPS. The AMD part is roughly 42.5% higher in this metric.

Q: Which GPU supports a newer version of Vulkan?

A: The Intel HD Graphics 630 supports Vulkan 1.3, while the AMD Radeon R6 M255DX supports Vulkan 1.2.170. Both support DirectX 12, OpenGL 4.6 is present on both, and the Intel part supports DirectX 12 (12_1) versus the AMD part's DirectX 12 (11_1).

Q: How does the Intel HD Graphics 630 compare to its nearest rivals?

A: The Intel HD Graphics 630 is 1% ahead of the NVIDIA GeForce GT 755M, 1.5% ahead of the AMD FirePro M4150, 0.4% behind the AMD Radeon RX 9060 XT 8 GB, and 1.8% behind the NVIDIA Quadro K2100M.

Where Each One Wins

The AMD Radeon R6 M255DX wins in the only direct head-to-head benchmark recorded in the database. In Geekbench Vulkan, it scores 4867 versus the Intel HD Graphics 630's 3540, a 37.5% advantage. This result aligns with the AMD part's higher FP32 throughput (547.2 GFLOPS versus 384.0 GFLOPS) and higher pixel rate (6.840 GPixel/s versus 3.000 GPixel/s). For applications that rely on Vulkan API performance, the AMD Radeon R6 M255DX is the clear pick.

The Intel HD Graphics 630 wins in several architectural and feature categories. It carries a higher boost clock (1000 MHz versus 855 MHz), a larger texture rate (24.00 GTexel/s versus 17.10 GTexel/s), and it supports newer API versions: Vulkan 1.3 versus Vulkan 1.2.170, and DirectX 12 (12_1) versus DirectX 12 (11_1). It also has a lower base clock (350 MHz versus 780 MHz) and a rated TDP of 15 W, which matters for thermally constrained systems. For users prioritizing API compatibility, texture throughput, and power efficiency, the Intel part is the better option.

The texture rate comparison reveals a split. The Intel HD Graphics 630 processes textures at 24.00 GTexel/s with 24 TMUs at 1000 MHz, while the AMD part processes at 17.10 GTexel/s with 20 TMUs at 855 MHz. The AMD Radeon R6 M255DX offsets this with more shading units (320 versus 192) and more ROPs (8 versus 3), which explains why the AMD part leads in FP32 compute and pixel rate. Texture-bound workloads may favor Intel, while shader-bound workloads favor AMD.

The AMD part.

The Intel HD Graphics 630 also records results in Geekbench OpenCL (3587 and Metal (5099) that are not directly matched by the AMD part, which only has a Vulkan result. The Intel part's average score of 4075 is pulled down by its Vulkan score of 3540, but its Metal result of 5099 is higher than the AMD Vulkan score of 4867. This suggests the Intel GPU performs better on Metal than on Vulkan, and the AMD part only has a Vulkan measurement in the database.

Architecture Differences

The AMD Radeon R6 M255DX uses the Jet chip built on GCN 1.0 architecture, manufactured on a 28 nm process at TSMC. The chip contains 690 million transistors on a 56 mm² die, giving a transistor density of 12.3M / mm². The Intel HD Graphics 630 uses the Kaby Lake GT2 chip built on Generation 9.5 architecture, manufactured on a 14 nm++ process at Intel. The database does not list transistor count or die size for the Intel part.

The AMD part belongs to the "Gem System Hybrid (Rx M200)" generation, while the Intel part belongs to the "HD Graphics (Kaby Lake)" generation. The AMD part was released on 2014-01-06, and the Intel part was released on 2016-08-29. Both are marked as end-of-life production status.

The AMD Radeon R6 M255DX implements 320 shading units, 20 TMUs, and 8 ROPs. The Intel HD Graphics 630 implements 192 shading units (the database classifies these as such), 24 TMUs, and 3 ROPs. The Intel part has more TMUs, but the AMD part has more shading units and ROPs.

The AMD part supports FP32 at 547.2 GFLOPS, while the Intel part supports FP32 at 384.0 GFLOPS and FP16 at 768.0 GFLOPS (2:1). The Intel part's FP16 capability is absent from the AMD part's specification. The AMD part's pixel rate is 6.840 GPixel/s, and the Intel part's is 3.000 GPixel/s. The AMD part's texture rate is 17.10 GTexel/s, and the Intel part's is 24.00 GTexel/s.

The AMD Radeon R6 M255DX has a base clock of 780 MHz and a boost clock of 855 MHz. The Intel HD Graphics 630 has a base clock of 350 MHz and a boost clock of 1000 MHz. The larger boost range on the Intel part suggests a more aggressive power management strategy, consistent with its 15 W TDP rating. The AMD part does not list a TDP in the database.

Both parts use system shared memory with system dependent bandwidth. Both list their slot width as IGP, and the AMD part's bus interface is IGP while the Intel part's is Ring Bus. Display outputs are portable device dependent for the AMD part and motherboard dependent for the Intel part.

Specification Differences

The recorded specifications differ in the following fields:

• Process node: 28 nm (AMD) versus 14 nm++ (Intel)
• Foundry: TSMC (AMD) versus Intel (Intel)
• Transistors: 690 million (AMD) versus not listed (Intel)
• Die size: 56 mm² (AMD) versus not listed (Intel)
• Transistor density: 12.3M / mm² (AMD) versus not listed (Intel)
• Base clock: 780 MHz (AMD) versus 350 MHz (Intel)
• Boost clock: 855 MHz (AMD) versus 1000 MHz (Intel)
• Shading units: 320 (AMD) versus 192 (Intel)
• TMUs: 20 (AMD) versus 24 (Intel)
• ROPs: 8 (AMD) versus 3 (Intel)
• Pixel rate: 6.840 GPixel/s (AMD) versus 3.000 GPixel/s (Intel)
• Texture rate: 17.10 GTexel/s (AMD) versus 24.00 GTexel/s (Intel)
• FP32: 547.2 GFLOPS (AMD) versus 384.0 GFLOPS (Intel)
• FP16: not listed (AMD) versus 768.0 GFLOPS (2:1) (Intel)
• TDP: not listed (AMD) versus 15 W (Intel)
• Bus interface: IGP (AMD) versus Ring Bus (Intel)
• Display outputs: Portable Device Dependent (AMD) versus Motherboard Dependent (Intel)
• DirectX: 12 (11_1) (AMD) versus 12 (12_1) (Intel)
• Vulkan: 1.2.170 (AMD) versus 1.3 (Intel)
• Release date: 2014-01-06 (AMD) versus 2016-08-29 (Intel)
• Avg benchmark score: 4867 (AMD) versus 4075 (Intel)
• Percentile: 28 (AMD) versus 24 (Intel)

Both parts share the same system shared memory configuration, no launch MSRP, no power connectors, no suggested PSU, no RT cores, and no tensor cores.

Head-to-Head Benchmarks

The database records one direct head-to-head benchmark between the AMD Radeon R6 M255DX and the Intel HD Graphics 630: Geekbench Vulkan. The AMD part scores 4867, and the Intel part scores 3540. The AMD part wins by 37.5%.

This is the single largest margin in any recorded comparison. The AMD part's score of 4867 places it 0.2% ahead of the NVIDIA GeForce GTX 560M, 0.5% ahead of the NVIDIA GeForce 940MX, 0.5% behind the NVIDIA GeForce GTS 450, and 0.7% behind the NVIDIA GeForce RTX 5060 Ti 8 GB. The Intel part's Vulkan score of 3540 is lower than its own OpenCL score of 3587 and its Metal score of 5099.

The AMD part's average benchmark score of 4867 is identical to its Vulkan score, since that is its only recorded benchmark. The Intel part's average of 4075 is the mean of its three scores (5099, 3587, 3540), which shows that the Intel part's Vulkan result is its weakest, while its Metal result is its strongest. The AMD part's nearest rivals are all within 1% of its score: the GTX 560M at 4855, the 940MX at 4844, the GTS 450 at 4893, and the RTX 5060 Ti 8 GB at 4901. The Intel part's nearest rivals span a wider range: the GT 755M at 4033, the FirePro M4150 at 4013, the RX 9060 XT 8 GB at 4093, and the Quadro K2100M at 4151.

The recorded data indicates that the AMD Radeon R6 M255DX is the stronger GPU in Vulkan workloads, and its overall average score reflects that. The Intel HD Graphics 630, despite a lower average, demonstrates a higher Metal score and a higher OpenCL score relative to its Vulkan result. The one head-to-head benchmark gives the AMD part all of the wins (1 win versus 0 wins), and the delta of 37.5% is substantial in this performance class.