Intel Arc B770 vs NVIDIA RTX A400 Comparison

The Intel Arc B770 and NVIDIA RTX A400 occupy different positions in the recorded database. The Arc B770 is a Battlemage-generation part using the Xe2-HPG architecture on a 5 nm TSMC process, while the RTX A400 is a Workstation Ampere part using the GA107 chip on Samsung 8 nm. No head-to-head benchmark records exist between them, and the database assigns zero wins to both cards, so the comparison relies on the recorded specifications and the RTX A400's standalone benchmark results.

Where Each One Wins

The Arc B770 wins on raw throughput. It records 4096 shading units, 256 texture units, 128 ROPs, and 32 RT cores. Its memory subsystem uses 16 GB GDDR6 on a 256-bit bus for 512.0 GB/s of bandwidth. The pixel rate is 307.2 GPixel/s, the texture rate is 614.4 GTexel/s, FP32 is 19.66 TFLOPS, and FP16 is 39.32 TFLOPS with a 2:1 ratio. These figures place the Arc B770 as the higher-capacity rendering and compute part in this pairing.

The RTX A400 wins on power and physical footprint. Its TDP is 50 W, it uses no power connectors, and its suggested PSU is 250 W. It is a single-slot card with recorded dimensions of 163 mm 6.4 inches in length and 69 mm 2.7 inches in height. The Arc B770 has a 225 W TDP, uses one 6-pin and one 8-pin connector, requires a 550 W suggested PSU, and is a dual-slot card with no recorded dimensions. For constrained workstation chassis, the RTX A400 is the card with the smaller installation profile.

The RTX A400 also has the only tensor core count in this comparison: 24 tensor cores. The Arc B770 does not list a tensor core count. Workloads that use tensor cores have a recorded hardware block on the RTX A400, while workloads that need large memory capacity and high shader throughput have a stronger specification set on the Arc B770.

Architecture Differences

Both cards support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, but their underlying designs differ at nearly every hardware level. The Arc B770 uses the BMG-G31 chip built on Xe2-HPG, a 5 nm TSMC design with a die size of 368 mm² and an unknown transistor count. The RTX A400 uses the GA107 chip built on Ampere, an 8 nm Samsung design with a die size of 200 mm², 8,700 million transistors, and a transistor density of 43.5M / mm².

The compute blocks diverge sharply. The Arc B770 has 4096 shading units, 256 texture units, 128 ROPs, and 32 RT cores. The RTX A400 has 768 shading units, 24 texture units, 16 ROPs, 6 RT cores, and 24 tensor cores. The Arc B770's tensor core count is not recorded. Cache sizes are not listed for either card, so the architecture comparison cannot include cache data.

The memory subsystem differs in scale. The Arc B770 uses 16 GB GDDR6 across a 256-bit bus for 512.0 GB/s. The RTX A400 uses 4 GB GDDR6 across a 64-bit bus for 96.00 GB/s. Clock behavior also separates the two: the Arc B770 has a 2100 MHz base clock and a 2400 MHz boost clock, while the RTX A400 has a 1417 MHz base clock and a 1762 MHz boost clock. Memory clocks are 2000 MHz 16 Gbps effective for the Arc B770 and 1500 MHz 12 Gbps effective for the RTX A400.

The product lineage differs as well. The Arc B770 belongs to the Battlemage (Arc 7) generation, with Alchemist as its predecessor and no successor listed. The RTX A400 belongs to the Workstation Ampere (Ax000) generation, with Quadro Turing as its predecessor and Workstation Ada as its successor.

Head-to-Head Benchmarks

The database contains no head-to-head benchmark results for the Arc B770 and RTX A400, and no wins are recorded for either card. The Arc B770 has no benchmark entries and no nearest rivals listed. The RTX A400 has nine recorded benchmark scores.

| Test | NVIDIA RTX A400 |

|---|---|

| geekbench_opencl | 22844 |

| geekbench_vulkan | 22237 |

| passmark_directx_10 | 32 |

| passmark_directx_11 | 37 |

| passmark_directx_12 | 27 |

| passmark_directx_9 | 87 |

| passmark_g2d | 899 |

| passmark_g3d | 5983 |

| passmark_gpu_compute | 2557 |

The RTX A400's average benchmark score is 6078, placing it at the 35th percentile of all GPUs in the database. Its nearest rivals are the GeForce MX230 at 6077 with a 0% delta, the Quadro P2000 at 6049 with a 0.5% delta, the Intel Iris Pro Graphics 6200 at 6117 with a -0.6% delta, and the AMD Radeon 760M at 6019 with a 1% delta. These deltas show a tight cluster: the largest recorded win is 1% over the Radeon 760M, and the largest recorded deficit is 0.6% below the Iris Pro Graphics 6200.

The Passmark DirectX results show a spread from 87 in DirectX 9 to 27 in DirectX 12, with DirectX 10 at 32 and DirectX 11 at 37. The G3D score of 5983 is substantially higher than the G2D score of 899, and the GPU compute score is 2557. Because the Arc B770 has no benchmark scores, there is no Arc B770 win to quantify in this section.

Specification Differences

The recorded specification differences are as follows.

| Field | Intel Arc B770 | NVIDIA RTX A400 |

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

| Chip | BMG-G31 | GA107 |

| Architecture | Xe2-HPG | Ampere |

| Generation | Battlemage (Arc 7) | Workstation Ampere (Ax000) |

| Process node / foundry | 5 nm / TSMC | 8 nm / Samsung |

| Die size | 368 mm² | 200 mm² |

| Transistors | unknown | 8,700 million |

| Transistor density | not listed | 43.5M / mm² |

| Base clock | 2100 MHz | 1417 MHz |

| Boost clock | 2400 MHz | 1762 MHz |

| Memory clock | 2000 MHz 16 Gbps effective | 1500 MHz 12 Gbps effective |

| Memory size | 16 GB | 4 GB |

| Bus width | 256 bit | 64 bit |

| Bandwidth | 512.0 GB/s | 96.00 GB/s |

| Shading units | 4096 | 768 |

| TMUs | 256 | 24 |

| ROPs | 128 | 16 |

| RT cores | 32 | 6 |

| Tensor cores | not listed | 24 |

| Pixel rate | 307.2 GPixel/s | 28.19 GPixel/s |

| Texture rate | 614.4 GTexel/s | 42.29 GTexel/s |

| FP32 | 19.66 TFLOPS | 2.706 TFLOPS |

| FP16 | 39.32 TFLOPS (2:1) | 2.706 TFLOPS (1:1) |

| TDP | 225 W | 50 W |

| Slot width | Dual-slot | Single-slot |

| Power connectors | 1x 6-pin + 1x 8-pin | None |

| Suggested PSU | 550 W | 250 W |

| Bus interface | PCIe 4.0 x16 | PCIe 4.0 x8 |

| Display outputs | 1x HDMI 2.1a, 3x DisplayPort 2.1 | 4x mini-DisplayPort 1.4a |

| Dimensions | not listed | 163 mm 6.4 inches, 69 mm 2.7 inches |

| Production status | not listed | Active |

| Release date | 2025-12-31 | 2024-04-15 |

| Predecessor | Alchemist | Quadro Turing |

| Successor | not listed | Workstation Ada |

The two cards share the same API set: DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Both use GDDR6 memory. Beyond those shared items, every recorded hardware field differs.

FAQ

Q: Which card has more memory bandwidth?

A: The Intel Arc B770 records 512.0 GB/s from 16 GB GDDR6 on a 256-bit bus. The NVIDIA RTX A400 records 96.00 GB/s from 4 GB GDDR6 on a 64-bit bus.

Q: What benchmark scores does the RTX A400 have?

A: The RTX A400 records Geekbench OpenCL 22844, Geekbench Vulkan 22237, Passmark G3D 5983, Passmark GPU compute 2557, Passmark G2D 899, Passmark DirectX 9 87, Passmark DirectX 11 37, Passmark DirectX 10 32, and Passmark DirectX 12 27. Its average score is 6078.

Q: Does the Arc B770 have any recorded benchmark results?

A: No. The database lists no benchmark entries for the Arc B770, no nearest rivals, and no average benchmark score.

Q: What is the power requirement difference?

A: The Arc B770 has a 225 W TDP, uses one 6-pin and one 8-pin power connector, and lists a 550 W suggested PSU. The RTX A400 has a 50 W TDP, uses no power connectors, and lists a 250 W suggested PSU.

Q: Which card includes tensor cores?

A: The NVIDIA RTX A400 includes 24 tensor cores. The Intel Arc B770 does not list a tensor core count in the database.

Q: How does the RTX A400 compare to its nearest rivals?

A: Its average score is 6078. It sits 0% from the GeForce MX230 at 6077, 0.5% above the Quadro P2000 at 6049, -0.6% below the Intel Iris Pro Graphics 6200 at 6117, and 1% above the AMD Radeon 760M at 6019.