AMD Radeon HD 6950 vs Intel UHD Graphics P630 Comparison

Head-to-Head Benchmarks

The recorded database contains a single direct comparison between these two graphics solutions: the Geekbench OpenCL test. In that benchmark, the AMD Radeon HD 6950 scores 6210 points, while the Intel UHD Graphics P630 scores 5111 points. The AMD part wins this head-to-head by a delta of 21.5 percent. This is a substantial margin, indicating that in raw compute workloads exposed through OpenCL, the older discrete card retains a clear performance advantage over the integrated Intel solution.

The Intel UHD Graphics P630 does have a second recorded benchmark result, a Geekbench Vulkan score of 5628, but there is no corresponding Vulkan result for the AMD Radeon HD 6950 in the database. Therefore, a direct Vulkan comparison cannot be made. The wins tally reflects this: the AMD card holds 1 win in the head-to-head table, while the Intel part holds 0. The average benchmark score for the AMD card is 6210, derived from its single OpenCL result. The Intel card's average is 5370, which is the mean of its OpenCL and Vulkan scores. This average difference, 840 points, further reinforces the AMD card's overall compute advantage in the recorded data.

Context from the nearest rivals list clarifies the positioning. The AMD Radeon HD 6950's 6210 OpenCL score places it just 0.2 percent behind the AMD FirePro W600, which averages 6223. It also sits 0.9 percent behind the NVIDIA GeForce RTX 4070 Ti SUPER AD102 and the RTX 5070 Ti SUPER, both averaging 6270. Interestingly, it trails the NVIDIA Quadro K620 by 1.1 percent, as that card averages 6282. This shows the HD 6950 is operating in a performance band occupied by professional and modern enthusiast cards, despite its age. For the Intel UHD Graphics P630, its 5370 average is 0.2 percent ahead of the AMD Radeon R7 M445, 0.9 percent ahead of the NVIDIA GeForce 840M, and 1 percent ahead of the NVIDIA GeForce 930A. It sits 0.8 percent behind the AMD Radeon R7 M365X. These deltas indicate the Intel part is clustered with low-end mobile discrete GPUs from several generations ago.

Architecture Differences

The fundamental architectural split is stark. The AMD Radeon HD 6950 is built on the TeraScale 3 architecture, using the Cayman chip, and belongs to the Northern Islands generation, specifically the HD 6900 series. It is fabricated on a 40 nm process at TSMC. The die contains 2,640 million transistors on a 389 mm² area, yielding a transistor density of 6.8 million per square millimeter. In contrast, the Intel UHD Graphics P630 uses the Comet Lake GT2 chip, based on the Generation 9.5 architecture, and comes from the HD Graphics-W family under Comet Lake. Its process node is 14 nm+++, fabricated by Intel itself. The database does not record a transistor count, die size, or density for the Intel part, as these are often not published for integrated graphics.

Core configuration differences are massive. The AMD card has 1408 shading units, 88 texture mapping units, and 32 raster output pipelines. The Intel part has just 192 shading units, 24 TMUs, and only 3 ROPs. This translates into a pixel rate of 25.60 GPixel/s for the AMD card versus 3.600 GPixel/s for the Intel part. Texture rates are 70.40 GTexel/s for AMD and 28.80 GTexel/s for Intel. Floating point performance in FP32 is 2.253 TFLOPS for the AMD card, while the Intel part delivers 460.8 GFLOPS. Notably, the Intel part has a recorded FP16 rate of 921.6 GFLOPS with a 2:1 ratio, a feature the AMD card does not list. The memory subsystem is entirely different: the AMD card uses 2 GB of dedicated GDDR5 memory on a 256-bit bus, delivering 160.0 GB/s of bandwidth. The Intel part uses system shared memory, with its bandwidth described as system dependent.

Clock behavior also diverges. The AMD card's memory runs at 1250 MHz, which translates to 5 Gbps effective. The Intel part has a base clock of 350 MHz and a boost clock of 1200 MHz. The AMD card's base and boost clocks are not recorded in the database. API support differs as well. The AMD card supports DirectX 11.2 (11_0) and OpenGL 4.4, but Vulkan support is not listed. The Intel part supports DirectX 12 (12_1), OpenGL 4.6, and Vulkan 1.3. This is a significant feature gap, as the Intel part offers modern API compatibility that the older AMD architecture lacks.

Where Each One Wins

The AMD Radeon HD 6950 wins decisively in raw compute throughput. Its 2.253 TFLOPS FP32 performance and 21.5 percent OpenCL benchmark lead over the Intel part indicate it is better suited for general-purpose GPU compute tasks that leverage OpenCL. The massive difference in shading units, 1408 versus 192, and the dedicated memory bandwidth of 160.0 GB/s versus system shared memory, give it a clear edge in workloads that are memory-bandwidth sensitive or require high parallel throughput. Its pixel rate of 25.60 GPixel/s is more than seven times that of the Intel part, making it far more capable for fill-rate-bound rendering tasks. The AMD card also wins on memory capacity guarantees: 2 GB of dedicated GDDR5, whereas the Intel part's memory is shared and variable.

The Intel UHD Graphics P630 wins in areas not measured by the head-to-head OpenCL test. Its Vulkan score of 5628 demonstrates it can handle modern graphics APIs, and its support for DirectX 12, OpenGL 4.6, and Vulkan 1.3 means it is compatible with contemporary software titles and frameworks. The AMD card lacks Vulkan support entirely and is limited to DirectX 11.2. The Intel part also wins decisively on power consumption, with a 15 W TDP versus the AMD card's 200 W. This makes it usable in compact, thermally constrained systems where the AMD card would require substantial cooling and power delivery. The Intel part is an integrated graphics processor, requiring no slot width, whereas the AMD card is a dual-slot card with two 6-pin power connectors and a suggested PSU of 550 W. The AMD card's physical footprint is recorded at 286 mm in length, 126 mm in height, and 42 mm in width, making it a large add-in board.

Specification Differences

The following table summarizes only the fields where the two parts differ, according to the database.

| Specification | AMD Radeon HD 6950 | Intel UHD Graphics P630 |

|---|---|---|

| Architecture | TeraScale 3 | Generation 9.5 |

| Chip | Cayman | Comet Lake GT2 |

| Generation | Northern Islands (HD 6900) | HD Graphics-W (Comet Lake) |

| Process Node | 40 nm | 14 nm+++ |

| Foundry | TSMC | Intel |

| Transistors | 2,640 million | Not recorded |

| Die Size | 389 mm² | Not recorded |

| Transistor Density | 6.8M / mm² | Not recorded |

| Memory Clock | 1250 MHz (5 Gbps effective) | System Shared |

| Memory Size | 2 GB GDDR5 | System Shared |

| Memory Bus Width | 256 bit | System Shared |

| Memory Bandwidth | 160.0 GB/s | System Dependent |

| Shading Units | 1408 | 192 |

| TMUs | 88 | 24 |

| ROPs | 32 | 3 |

| Pixel Rate | 25.60 GPixel/s | 3.600 GPixel/s |

| Texture Rate | 70.40 GTexel/s | 28.80 GTexel/s |

| FP32 | 2.253 TFLOPS | 460.8 GFLOPS |

| FP16 | Not recorded | 921.6 GFLOPS (2:1) |

| TDP | 200 W | 15 W |

| Slot Width | Dual-slot | IGP |

| Power Connectors | 2x 6-pin | None |

| Suggested PSU | 550 W | Not recorded |

| Bus Interface | PCIe 2.0 x16 | Ring Bus |

| Display Outputs | 2x DVI, 1x HDMI 1.4a, 2x mini-DisplayPort 1.2 | Motherboard Dependent |

| DirectX | 11.2 (11_0) | 12 (12_1) |

| OpenGL | 4.4 | 4.6 |

| Vulkan | Not recorded | 1.3 |

| Dimensions | 286 mm x 126 mm x 42 mm | Not recorded |

| Release Date | 2010-12-13 | 2020-05-12 |

| Launch MSRP | 299 USD | Not recorded |

The AMD card was released in December 2010, while the Intel part came nearly a decade later in May 2020. The AMD card's launch MSRP was 299 USD, stated once here as recorded. The Intel part has no recorded launch MSRP. The AMD card's production status is end-of-life, as is the Intel part's. The AMD card's predecessor is Evergreen, and its successor is Southern Islands. The Intel part has no recorded predecessor or successor.

FAQ

Q: Which GPU is faster in the recorded OpenCL benchmark?

A: The AMD Radeon HD 6950 scores 6210 points, which is 21.5 percent higher than the Intel UHD Graphics P630's 5111 points in the Geekbench OpenCL test.

Q: What is the average benchmark score for each card?

A: The AMD Radeon HD 6950 has an average score of 6210, based on its single OpenCL result. The Intel UHD Graphics P630 has an average of 5370, based on its OpenCL score of 5111 and Vulkan score of 5628.

Q: Does the Intel UHD Graphics P630 support modern graphics APIs?

A: Yes, the Intel part supports DirectX 12 (12_1), OpenGL 4.6, and Vulkan 1.3. The AMD Radeon HD 6950 supports DirectX 11.2 (11_0) and OpenGL 4.4, with no Vulkan support recorded.

Q: How do the memory configurations differ?

A: The AMD Radeon HD 6950 uses 2 GB of dedicated GDDR5 memory on a 256-bit bus, providing 160.0 GB/s of bandwidth. The Intel UHD Graphics P630 uses system shared memory with system dependent bandwidth.

Q: What are the power consumption figures?

A: The AMD Radeon HD 6950 has a TDP of 200 W and requires a 550 W suggested PSU. The Intel UHD Graphics P630 has a TDP of 15 W and is an integrated graphics processor with no power connectors.

Q: How does the AMD card compare to its nearest rivals?

A: The AMD Radeon HD 6950's 6210 average score is 0.2 percent behind the AMD FirePro W600, 0.9 percent behind both the NVIDIA GeForce RTX 4070 Ti SUPER AD102 and RTX 5070 Ti SUPER, and 1.1 percent behind the NVIDIA Quadro K620.