Intel Arc B580 vs Intel Arc B770 Comparison

Where Each One Wins

The Intel Arc B580 and Intel Arc B770 serve different positions within Intel's Battlemage generation, and the recorded data shows a clear split in workload focus. The B580 is the only one of the two with actual benchmark scores in the database, and those scores establish it as a capable mid-range performer. Its average benchmark score of 23,021 places it in the 68th percentile of all GPUs, which means it outperforms roughly two-thirds of the installed base of graphics cards. The nearest rivals in the database confirm this positioning: the AMD Radeon RX 580 2048SP sits just 0.2% behind with an average score of 23,061, while the NVIDIA GeForce RTX 3080 sits 0.7% ahead at 23,172. The B580 effectively trades blows with the RTX 2080, which scores 22,895, a 0.6% deficit for the NVIDIA card.

The B770, by contrast, has no recorded benchmark scores in the database. Its percentile ranking of 50 is a placeholder value, not a measured result. What the specifications indicate, however, is that the B770 is built for higher throughput in compute-heavy and high-resolution scenarios. Its FP32 throughput of 19.66 TFLOPS versus the B580's 13.67 TFLOPS represents a 44% advantage in raw shader math. The texture rate difference is even larger: 614.4 GTexel/s versus 427.2 GTexel/s, a 44% gap. Pixel throughput moves from 213.6 GPixel/s on the B580 to 307.2 GPixel/s on the B770, a 44% increase as well. These are the metrics that drive rasterization performance at higher resolutions and with heavier post-processing effects.

The B580 wins in the efficiency-per-clock domain. Its boost clock of 2670 MHz is 11% higher than the B770's 2400 MHz boost, and its base clock of 2670 MHz is 27% higher than the B770's 2100 MHz base. For workloads that are latency-sensitive or clock-bound, the B580 has the advantage. The B770 compensates with 60% more shading units (4096 versus 2560), 60% more TMUs (256 versus 160), 60% more ROPs (128 versus 80), and 60% more ray tracing cores (32 versus 20). The B770 is the throughput king; the B580 is the clock-speed specialist.

Architecture Differences

Both cards use the Xe2-HPG architecture, Intel's second-generation high-performance graphics design, and both are fabricated on TSMC's 5 nm process. The fundamental architectural building blocks are identical: DirectX 12 Ultimate (12_2) support, OpenGL 4.6, Vulkan 1.4, and the same display output configuration of 1x HDMI 2.1a plus 3x DisplayPort 2.1. The difference lies in the silicon implementation.

The B580 uses the BMG-G21 chip, which measures 272 mm² and packs 19,600 million transistors, yielding a transistor density of 72.1 million per mm². The B770 uses the BMG-G31 chip, a larger 368 mm² die. The database does not record a transistor count for the G31, so its density cannot be calculated. The die size difference of 96 mm² (35% larger) is significant, and it accommodates the additional execution resources: 1,536 more shading units, 96 more TMUs, 48 more ROPs, and 12 more ray tracing cores.

Memory architecture diverges as well. The B580 features 12 GB of GDDR6 on a 192-bit bus, delivering 456.0 GB/s of bandwidth. The B770 doubles the bus width to 256-bit and increases capacity to 16 GB, pushing bandwidth to 512.0 GB/s, a 12% improvement. The B770's memory clock is actually lower (2000 MHz, 16 Gbps effective) than the B580's (2375 MHz, 19 Gbps effective), but the wider bus more than compensates. For large texture sets and high-resolution frame buffers, the B770's extra capacity and bandwidth matter.

The power delivery and interface configurations differ accordingly. The B580 draws up to 190 W TDP and uses a single 8-pin power connector, with a suggested 450 W power supply. The B770 draws 225 W TDP, requires both a 6-pin and an 8-pin connector, and recommends a 550 W power supply. The PCIe interface also differs: the B580 runs at PCIe 4.0 x8, while the B770 runs at PCIe 4.0 x16, doubling the available host link bandwidth for the larger card.

Physical dimensions are only recorded for the B580: 272 mm in length, 115 mm in height, and 45 mm in width, making it a dual-slot card. The B770's dimensions are not in the database, but its dual-slot designation is confirmed.

FAQ

Q: Which card has higher raw compute throughput?

A: The Intel Arc B770. Its FP32 performance of 19.66 TFLOPS exceeds the B580's 13.67 TFLOPS by 44%. The FP16 figures follow the same pattern: 39.32 TFLOPS versus 27.34 TFLOPS, both at a 2:1 ratio.

Q: How do the memory subsystems compare?

A: The B580 uses 12 GB of GDDR6 on a 192-bit bus at 19 Gbps effective, yielding 456.0 GB/s. The B770 uses 16 GB of GDDR6 on a 256-bit bus at 16 Gbps effective, yielding 512.0 GB/s. The B770 has 33% more capacity and 12% more bandwidth.

Q: Which card has higher clock speeds?

A: The B580. Its base and boost clocks are both 2670 MHz. The B770 runs at a 2100 MHz base and 2400 MHz boost. The B580's boost is 11% higher, and its base is 27% higher.

Q: What is the ray tracing hardware difference?

A: The B770 has 32 ray tracing cores, which is 60% more than the B580's 20 ray tracing cores. Both cards support DirectX 12 Ultimate (12_2), which includes ray tracing feature requirements.

Q: Are the power requirements significantly different?

A: Yes. The B580 has a 190 W TDP with a single 8-pin connector and a suggested 450 W power supply. The B770 has a 225 W TDP with a 6-pin plus 8-pin configuration and a suggested 550 W power supply.

Q: Does the B770 have any recorded benchmark scores?

A: No. The database contains no benchmark entries for the B770. Its average benchmark score is recorded as 0, and its percentile of 50 is a default value, not a measured statistic. All performance comparisons must be inferred from its specification sheet versus the B580's measured results.

Specification Differences

| Specification | Intel Arc B580 | Intel Arc B770 |

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

| Chip | BMG-G21 | BMG-G31 |

| Generation | Battlemage (Arc 5) | Battlemage (Arc 7) |

| Die Size | 272 mm² | 368 mm² |

| Base Clock | 2670 MHz | 2100 MHz |

| Boost Clock | 2670 MHz | 2400 MHz |

| Memory Clock | 2375 MHz, 19 Gbps effective | 2000 MHz, 16 Gbps effective |

| Memory Size | 12 GB | 16 GB |

| Memory Bus Width | 192 bit | 256 bit |

| Memory Bandwidth | 456.0 GB/s | 512.0 GB/s |

| Shading Units | 2560 | 4096 |

| TMUs | 160 | 256 |

| ROPs | 80 | 128 |

| Ray Tracing Cores | 20 | 32 |

| Pixel Rate | 213.6 GPixel/s | 307.2 GPixel/s |

| Texture Rate | 427.2 GTexel/s | 614.4 GTexel/s |

| FP32 Performance | 13.67 TFLOPS | 19.66 TFLOPS |

| FP16 Performance | 27.34 TFLOPS (2:1) | 39.32 TFLOPS (2:1) |

| TDP | 190 W | 225 W |

| Power Connectors | 1x 8-pin | 1x 6-pin + 1x 8-pin |

| Suggested PSU | 450 W | 550 W |

| Bus Interface | PCIe 4.0 x8 | PCIe 4.0 x16 |

| Launch MSRP | 249 USD | Not recorded |

The two cards share identical architecture, process node (5 nm on TSMC), foundry, API support, display outputs, slot width, and manufacturer. The B770's transistor count, transistor density, dimensions, and production status are not recorded in the database.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark results between the B580 and the B770. The head-to-head array is empty, and neither card records any wins in that category. This absence of directly comparable measurements means the analysis must rely on the B580's absolute scores and the B770's specification-derived capabilities.

The B580's strongest recorded result is in Geekbench Vulkan, where it scores 109,672. Its OpenCL score of 92,821 is also substantial. In 3DMark Steel Nomad DX12, the B580 posts 3,068 points. PassMark results show a G3D score of 15,748, a GPU compute score of 7,729, and a G2D score of 709. The DirectX 9 score of 183 is the highest among the legacy API tests, while DirectX 10 and DirectX 12 both score 76, and DirectX 11 scores 128.

Against its nearest rivals, the B580's average score of 23,021 places it in a tight cluster. The RTX 3080 leads the group at 23,172, just 0.7% ahead. The RX 580 2048SP follows at 23,061, 0.2% behind the B580. The RTX 2080 trails at 22,895, a 0.6% deficit, and the P106-100 records 23,249, which is 1% ahead of the B580. These deltas are all within a narrow band, indicating that the B580 performs essentially on par with this group of cards from previous generations.

For the B770, the absence of measured scores means no direct percentile comparison is possible. However, the specification sheet provides a consistent scaling story. The B770's shading unit count is 60% higher, its texture rate is 44% higher, its pixel rate is 44% higher, and its FP32 throughput is 44% higher. If the B770 scales even close to linearly with these resource increases, its performance should land well above the B580's measured results in rasterization-heavy workloads. The 12% bandwidth advantage and 33% capacity advantage in memory further support this expectation in high-resolution scenarios.

The clock speed differential complicates the simple resource-count scaling. The B580's 2670 MHz boost is 11% above the B770's 2400 MHz. For lightly threaded or latency-bound workloads, the B580's higher clocks may narrow the gap. The B770's 27% higher base clock deficit (2100 MHz versus 2670 MHz) could also affect sustained performance in thermally constrained scenarios, though the database does not record thermal behavior.

The B580's launch MSRP of 249 USD places it in the database's recorded pricing structure, but the B770 has no recorded launch price. The B770's release date of 2025-12-31 is later than the B580's 2024-12-12, which suggests the larger card is positioned as a subsequent, higher-tier release within the same Battlemage generation. Both cards share the Alchemist predecessor, and neither has a recorded successor.

The data indicates that the B580 is the measured, shipping product with verified performance, while the B770 is a specification-defined product awaiting benchmark validation. The B580's 68th percentile standing among all GPUs is a concrete achievement. The B770's 50th percentile is a default placeholder and should not be interpreted as a performance estimate. Until benchmark results appear for the B770, its 44% to 60% resource advantages over the B580 remain theoretical, though the architecture's consistent scaling pattern across texture, pixel, and compute rates suggests those advantages are realizable in practice.