Intel Arc B580 vs Intel Arc Pro B370 Comparison

Head-to-Head Benchmarks

The Intel Arc B580 is a discrete graphics card with a substantial benchmark presence, while the Intel Arc Pro B370 is an integrated graphics processor (IGP) with no recorded benchmarks in the database. This makes a direct score-to-score comparison impossible; instead, the B580's recorded data must be interpreted against its own nearest rivals to establish where it stands.

The B580 delivers an average benchmark score of 23021 across all recorded tests. Its nearest rival, the AMD Radeon RX 580 2048SP, scores 23061, placing the B580 a marginal 0.2% behind. Against the NVIDIA GeForce RTX 2080, which scores 22895, the B580 is 0.6% ahead. The NVIDIA GeForce RTX 3080 scores 23172, putting the B580 0.7% behind it. The NVIDIA P106-100 scores 23249, leaving the B580 1% behind. These deltas are all within a narrow band, indicating the B580 performs in the same tier as these older or differently positioned GPUs, despite being a newer architecture.

In individual tests, the B580 shows its strongest results in Geekbench Vulkan with a score of 109672, and Geekbench OpenCL with 92821. The Passmark G3D score is 15748, while the Passmark GPU Compute score is 7729. The 3DMark Steel Nomad DX12 test yields 3068. DirectX 9 and DirectX 11 Passmark scores are 183 and 128 respectively, with DirectX 10 and DirectX 12 both at 76. The Passmark G2D score is 709. These figures confirm the B580 is a capable performer across modern and legacy APIs, with a percentile ranking of 68 against all GPUs in the database.

The Arc Pro B370, with no benchmark scores and an average benchmark score of 0, cannot be compared head-to-head. Its percentile ranking of 50 is lower than the B580's 68, but this percentile is derived from its specifications rather than measured performance. The data shows the B580 is the only one of the two with empirical performance evidence.

Architecture Differences

The two processors use completely different underlying designs. The Intel Arc B580 uses the BMG-G21 chip built on the Xe2-HPG architecture, belonging to the Battlemage (Arc 5) generation. It is manufactured on a 5 nm process at TSMC, with 19,600 million transistors on a 272 mm² die, giving a transistor density of 72.1M per mm². The Intel Arc Pro B370 uses the Panther Lake chip on the Xe3-LPG architecture, part of the Arc Graphics-WM (Panther Lake) generation. It is built on a 3 nm process at Intel, with transistor count and die size listed as unknown.

The B580 is a discrete card with a dual-slot design, a 190 W TDP, and requires a single 8-pin power connector with a suggested 450 W power supply. The B370 is an integrated graphics processor with a 25 W TDP, no power connectors, and no suggested PSU. The B580 uses a PCIe 4.0 x8 bus interface, while the B370 connects via an integrated graphics processor interface.

Memory configurations differ sharply. The B580 has 12 GB of GDDR6 memory on a 192-bit bus, with 456.0 GB/s of bandwidth and a memory clock of 2375 MHz (19 Gbps effective). The B370 uses system shared memory, with the bus width, type, and bandwidth all listed as system dependent. The B580's memory is dedicated and fixed; the B370's is variable and shared with the system.

The B580's display outputs are 1x HDMI 2.1a and 3x DisplayPort 2.1. The B370's display outputs are listed as portable device dependent, reflecting its integrated nature. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API feature parity exists despite the hardware differences.

Where Each One Wins

The Intel Arc B580 wins in every measurable performance category. It has 2560 shading units, 160 texture mapping units, and 80 raster operation units, compared to the B370's 1280 shading units, 40 TMUs, and 20 ROPs. The B580 has 20 ray tracing cores, while the B370 has 10. The B580's pixel rate is 213.6 GPixel/s and texture rate is 427.2 GTexel/s, versus 48.00 GPixel/s and 96.00 GTexel/s for the B370. FP32 compute is 13.67 TFLOPS for the B580 and 6.144 TFLOPS for the B370, with FP16 at 27.34 TFLOPS (2:1) versus 12.29 TFLOPS (2:1).

The B580's clock speeds are also higher: a base and boost of 2670 MHz, while the B370 has a 300 MHz base and 2400 MHz boost. The B580's transistor density of 72.1M per mm² on a 272 mm² die indicates a dense, fully featured discrete GPU. The B370's integrated design with a 25 W TDP suggests it is meant for low-power, portable systems where discrete graphics are not an option.

Where the B370 wins is in power efficiency and integration. Its 25 W TDP is dramatically lower than the B580's 190 W, and it requires no additional power connectors or dedicated PSU headroom. For systems where space, cooling, and power draw are at a premium, the B370 is a viable option. The B580, by contrast, wins in all compute, rendering, and memory bandwidth scenarios.

Specification Differences

| Specification | Intel Arc B580 | Intel Arc Pro B370 |

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

| Chip | BMG-G21 | Panther Lake |

| Architecture | Xe2-HPG | Xe3-LPG |

| Generation | Battlemage (Arc 5) | Arc Graphics-WM (Panther Lake) |

| Process node | 5 nm (TSMC) | 3 nm (Intel) |

| Transistors | 19,600 million | Unknown |

| Die size | 272 mm² | Unknown |

| Base clock | 2670 MHz | 300 MHz |

| Boost clock | 2670 MHz | 2400 MHz |

| Memory | 12 GB GDDR6 | System Shared |

| Memory bus | 192 bit | System Shared |

| Memory bandwidth | 456.0 GB/s | System Dependent |

| Shading units | 2560 | 1280 |

| TMUs | 160 | 40 |

| ROPs | 80 | 20 |

| Ray tracing cores | 20 | 10 |

| Pixel rate | 213.6 GPixel/s | 48.00 GPixel/s |

| Texture rate | 427.2 GTexel/s | 96.00 GTexel/s |

| FP32 | 13.67 TFLOPS | 6.144 TFLOPS |

| FP16 | 27.34 TFLOPS (2:1) | 12.29 TFLOPS (2:1) |

| TDP | 190 W | 25 W |

| Slot width | Dual-slot | IGP |

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

| Suggested PSU | 450 W | None |

| Bus interface | PCIe 4.0 x8 | IGP |

| Display outputs | 1x HDMI 2.1a, 3x DisplayPort 2.1 | Portable Device Dependent |

| Dimensions | 272 mm length, 115 mm height, 45 mm width | Not listed |

| Release date | 2024-12-12 | 2026-01-26 |

| Launch MSRP | 249 USD | None |

FAQ

Q: Which processor has more shading units?

A: The Intel Arc B580 has 2560 shading units, while the Intel Arc Pro B370 has 1280.

Q: What is the memory bandwidth difference?

A: The B580 provides 456.0 GB/s from 12 GB of GDDR6 on a 192-bit bus. The B370 uses system shared memory with system dependent bandwidth.

Q: How do the TDPs compare?

A: The B580 has a 190 W TDP with a dual-slot cooler and one 8-pin power connector. The B370 has a 25 W TDP, requires no power connectors, and is an integrated graphics processor.

Q: Which has a higher boost clock?

A: The B580 boosts at 2670 MHz. The B370 boosts at 2400 MHz, with a much lower 300 MHz base clock.

Q: Are both processors active in production?

A: Yes, both the Intel Arc B580 and the Intel Arc Pro B370 are listed as active in production.

Q: What is the B580's percentile ranking compared to the B370?

A: The B580 ranks in the 68th percentile against all GPUs. The B370 ranks in the 50th percentile.

The Verdict

The Intel Arc B580 is a discrete graphics card with measured performance data. Its average benchmark score of 23021 places it within 1% of the AMD Radeon RX 580 2048SP, NVIDIA GeForce RTX 2080, NVIDIA GeForce RTX 3080, and NVIDIA P106-100. It has a 68th percentile ranking, a 190 W TDP, 12 GB of GDDR6 memory, and a 2670 MHz boost clock. It was released on 2024-12-12 with a launch MSRP of 249 USD.

The Intel Arc Pro B370 is an integrated graphics processor with no recorded benchmarks. It has a 50th percentile ranking, a 25 W TDP, system shared memory, and a 2400 MHz boost clock. It was released on 2026-01-26. The data shows the B370 is designed for low-power, integrated systems where discrete graphics are not feasible.

For users needing a dedicated GPU with proven benchmark results, the B580 is the clear choice. Its FP32 compute of 13.67 TFLOPS is more than double the B370's 6.144 TFLOPS, and its memory bandwidth of 456.0 GB/s is fixed and substantial. The B370 suits systems where power draw is critical, as its 25 W TDP is a fraction of the B580's 190 W, and its integrated nature removes the need for a separate card. The B580's release date and active production status confirm it is a current discrete option, while the B370's later release and integrated design target a different segment entirely.