AMD Radeon PRO W6800 vs Intel Arc A770 Comparison

Where Each One Wins

The recorded data splits these two cards along clear workload boundaries. The AMD Radeon PRO W6800 wins both head-to-head benchmark comparisons in the database, taking the Geekbench OpenCL test with a score of 121,808 against Intel's 109,175, and the Geekbench Vulkan test with 109,961 against 94,284. That gives AMD a 2-0 sweep in the direct comparisons, with a margin of 11.6% in OpenCL and 16.6% in Vulkan.

The Intel Arc A770 does not win any of the recorded head-to-head tests, but its strength lies elsewhere. Its average benchmark score of 68,809 places it in the 90th percentile of all GPUs, which is a strong showing for a card with a 225 W power target. The AMD card, by contrast, sits in the 96th percentile with an average score of 135,396. That is nearly double the Intel card's average, a gap that reflects the AMD card's positioning as a professional workstation part rather than a consumer-oriented accelerator.

When looking at the nearest rivals in the database, each card's competitive context becomes clearer. The AMD Radeon PRO W6800 is bracketed by NVIDIA A10M (135,230 average score, 0.1% delta) and NVIDIA RTX 4000 Ada Generation (135,218, 0.1% delta), with the AMD Radeon Pro W6800X Duo (135,774, -0.3%) and AMD Radeon PRO V620 (136,472, -0.8%) sitting slightly above. This means the W6800 is effectively tied with professional NVIDIA accelerators in average score, within a 1% band.

The Intel Arc A770's nearest rivals are a different class entirely: NVIDIA CMP 90HX (69,000, -0.3%), AMD Radeon Instinct MI25 (68,562, 0.4%), AMD Radeon Pro WX 8200 (69,870, -1.5%), and NVIDIA Quadro P6000 (69,986, -1.7%). The Arc A770 is competitive with these older or specialized cards, but it is not in the same performance tier as the W6800.

The use-case split is therefore stark. The AMD card wins compute-oriented benchmarks by double-digit percentages, and its 32 GB memory capacity with 512.0 GB/s bandwidth makes it suited for large datasets. The Intel card, with 16 GB at the same 512.0 GB/s bandwidth, offers half the capacity but matches the bandwidth, which could favor certain throughput-bound workloads where capacity is less critical.

Architecture Differences

The two GPUs come from different architectural lineages. The AMD Radeon PRO W6800 uses the Navi 21 chip on RDNA 2.0 architecture, manufactured on a 7 nm process at TSMC. The Intel Arc A770 uses the DG2-512 chip on Xe-HPG architecture, built on a 6 nm process, also at TSMC. The process node difference is small but measurable: 6 nm versus 7 nm, which allows Intel to pack more transistors per square millimeter.

Transistor counts and die sizes differ substantially. The AMD chip has 26,800 million transistors on a 520 mm² die, giving a transistor density of 51.5M per mm². The Intel chip has 21,700 million transistors on a 406 mm² die, yielding a higher density of 53.4M per mm². Despite the smaller die, Intel achieves higher density, but AMD has more total transistors and a larger physical package.

Memory configurations diverge in capacity but not in bus width or bandwidth. Both use GDDR6 memory with a 256-bit bus and 512.0 GB/s bandwidth, but the AMD card carries 32 GB while the Intel card has 16 GB. Memory clock is identical at 2000 MHz with 16 Gbps effective.

Compute unit counts favor Intel in raw numbers. The Arc A770 has 4,096 shading units, 256 TMUs, and 128 ROPs, compared to the W6800's 3,840 shading units, 240 TMUs, and 96 ROPs. However, the AMD card has 60 ray tracing cores while the Intel card has 32, a 2:1 advantage in dedicated RT hardware.

The clock speeds tell a different story. Intel's base clock is 2100 MHz with a boost of 2400 MHz, while AMD's base is 1575 MHz with a boost of 2322 MHz. Intel runs higher at both ends, but AMD's lower clocks are compensated by the architecture's efficiency. The FP32 throughput reflects this: Intel reaches 19.66 TFLOPS versus AMD's 17.83 TFLOPS, and FP16 performance is 39.32 TFLOPS versus 35.67 TFLOPS (both at 2:1 ratios).

Pixel and texture rates also favor Intel. The Arc A770 achieves 307.2 GPixel/s and 614.4 GTexel/s, while the W6800 reaches 222.9 GPixel/s and 557.3 GTexel/s. These are raw throughput numbers, not application results.

Power and physical specifications differ. The AMD card has a 250 W TDP with a suggested 600 W PSU, while Intel lists 225 W TDP and 550 W suggested PSU. Both are dual-slot cards with identical power connectors (1x 6-pin + 1x 8-pin). Display outputs differ: AMD has 6x mini-DisplayPort 1.4a, Intel has 1x HDMI 2.1 and 3x DisplayPort 2.0.

Head-to-Head Benchmarks

The database contains two direct benchmark comparisons, and AMD wins both decisively. In Geekbench OpenCL, the AMD Radeon PRO W6800 scores 121,808 against the Intel Arc A770's 109,175, a delta of 11.6%. In Geekbench Vulkan, AMD scores 109,961 against Intel's 94,284, a delta of 16.6%.

The Vulkan margin is particularly notable. A 16.6% lead in a cross-vendor API like Vulkan suggests the AMD architecture handles the driver and command overhead more efficiently, or that the RDNA 2.0 design extracts more performance per shader unit. The Intel card has more shading units (4,096 versus 3,840) and higher clocks (2400 MHz boost versus 2322 MHz), yet it loses by double digits. This indicates that raw compute resources do not translate directly into benchmark wins.

The OpenCL result narrows the gap. Intel's 109,175 is closer to AMD's 121,808, but still 11.6% behind. OpenCL workloads often scale with memory bandwidth and driver maturity, and since both cards have identical 512.0 GB/s bandwidth, the difference likely comes from compute efficiency or driver optimization.

Worth noting: the Intel card's average benchmark score of 68,809 is dragged down by its 3DMark Steel Nomad DX12 result of 2,969, a professional-grade test where the card appears to struggle. The AMD card has no equivalent 3DMark score in the database, so a direct DX12 comparison is not possible. However, the average scores (135,396 for AMD, 68,809 for Intel) reflect a fundamental performance gap across the full test suite.

The percentile rankings corroborate this. AMD sits at 96th percentile of all GPUs, Intel at 90th. That 6-percentile gap is small in absolute terms but represents a meaningful split between the top tier and the upper-mid tier.

The Verdict

From the recorded data, the AMD Radeon PRO W6800 is the clear winner in raw compute performance. It beats the Intel Arc A770 by 11.6% in OpenCL and 16.6% in Vulkan, and its average benchmark score of 135,396 is roughly double Intel's 68,809. The AMD card also carries twice the memory capacity (32 GB versus 16 GB) at the same bandwidth, making it the obvious choice for memory-heavy workloads such as large model inference, high-resolution rendering, or multi-application virtualization.

The Intel Arc A770 does have a legitimate argument in efficiency per watt. It runs at 225 W TDP versus AMD's 250 W, and its suggested PSU requirement is 550 W versus 600 W. For users with power constraints, the Intel card delivers 90th percentile performance at a lower power envelope. But the performance gap is too large to ignore: Intel's shading unit count and clock advantage do not overcome AMD's architectural efficiency in the recorded tests.

The database's nearest-rival data reinforces this. AMD's W6800 trades blows with NVIDIA A10M, RTX 4000 Ada, W6800X Duo, and PRO V620, all professional or prosumer parts. Intel's Arc A770 sits alongside NVIDIA CMP 90HX, Radeon Instinct MI25, Pro WX 8200, and Quadro P6000, which are older or specialized accelerators. The competitive tier is simply different.

For whom should each card be chosen? The AMD Radeon PRO W6800 suits professionals who need maximum compute throughput, double-digit benchmark margins, and 32 GB of memory. The Intel Arc A770 suits users who need a capable GPU with lower power draw and are willing to accept a 16.6% Vulkan deficit and a 11.6% OpenCL deficit, provided their workload is not memory-capacity bound. The data does not support choosing Intel for raw performance.

FAQ

Q: Which GPU has a higher average benchmark score?

A: The AMD Radeon PRO W6800 has an average benchmark score of 135,396, while the Intel Arc A770 averages 68,809. AMD's score is nearly double Intel's.

Q: How much faster is the AMD card in Vulkan?

A: The AMD Radeon PRO W6800 scores 109,961 in Geekbench Vulkan versus 94,284 for the Intel Arc A770, a 16.6% lead.

Q: Do both cards have the same memory bandwidth?

A: Yes, both have 512.0 GB/s bandwidth with a 256-bit bus and GDDR6 memory. However, the AMD card has 32 GB capacity while the Intel card has 16 GB.

Q: What is the power consumption difference?

A: The AMD card has a 250 W TDP with a 600 W suggested PSU. The Intel card has a 225 W TDP with a 550 W suggested PSU. Intel draws less power.

Q: Which card has more ray tracing cores?

A: The AMD Radeon PRO W6800 has 60 ray tracing cores, while the Intel Arc A770 has 32. AMD has a 2:1 advantage in dedicated RT hardware.

Q: What are the nearest rivals for each card in the database?

A: The AMD card's nearest rivals are NVIDIA A10M, RTX 4000 Ada, Radeon Pro W6800X Duo, and Radeon PRO V620, all within 0.8% of its average score. The Intel card's nearest rivals are NVIDIA CMP 90HX, Radeon Instinct MI25, Pro WX 8200, and Quadro P6000, within 1.7%.

Specification Differences

| Specification | AMD Radeon PRO W6800 | Intel Arc A770 |

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

| Chip | Navi 21 | DG2-512 |

| Architecture | RDNA 2.0 | Xe-HPG |

| Process Node | 7 nm | 6 nm |

| Foundry | TSMC | TSMC |

| Transistors | 26,800 million | 21,700 million |

| Die Size | 520 mm² | 406 mm² |

| Transistor Density | 51.5M / mm² | 53.4M / mm² |

| Base Clock | 1575 MHz | 2100 MHz |

| Boost Clock | 2322 MHz | 2400 MHz |

| Memory Size | 32 GB | 16 GB |

| Shading Units | 3840 | 4096 |

| TMUs | 240 | 256 |

| ROPs | 96 | 128 |

| Ray Tracing Cores | 60 | 32 |

| Pixel Rate | 222.9 GPixel/s | 307.2 GPixel/s |

| Texture Rate | 557.3 GTexel/s | 614.4 GTexel/s |

| FP32 Performance | 17.83 TFLOPS | 19.66 TFLOPS |

| FP16 Performance | 35.67 TFLOPS (2:1) | 39.32 TFLOPS (2:1) |

| TDP | 250 W | 225 W |

| Suggested PSU | 600 W | 550 W |

| Display Outputs | 6x mini-DisplayPort 1.4a | 1x HDMI 2.1, 3x DisplayPort 2.0 |

| Release Date | 2021-06-07 | 2022-10-11 |

| Predecessor | Radeon Pro Vega | Xe Graphics |

| Successor | None | Battlemage |

| Launch MSRP | 2,249 USD | 329 USD |