Intel Arc B580 vs Intel Arc G3 Extreme Comparison

The Intel Arc B580 and the Intel Arc G3 Extreme occupy very different positions in the database. The B580 is a discrete Battlemage card with a full set of recorded benchmark scores, while the G3 Extreme is an integrated Panther Lake part with no recorded benchmark scores. This comparison relies on the recorded specifications and measurements to show what each part delivers.

Head-to-Head Benchmarks

The database has no direct benchmark matchups between these two GPUs. The recorded head-to-head win count is 0 for both parts, and there are no shared workload entries. The Arc G3 Extreme has no recorded benchmark scores at all, so it cannot claim a single measured win.

The Arc B580, by contrast, has a set of recorded scores across multiple test suites. In 3DMark Steel Nomad DX12 it scores 3068. Geekbench OpenCL returns 92821, and Geekbench Vulkan returns 109672. Passmark results include DirectX 10 at 76, DirectX 11 at 128, DirectX 12 at 76, DirectX 9 at 183, G2D at 709, G3D at 15748, and GPU Compute at 7729.

Because there is no direct head-to-head result, the B580's nearest-rival data provides context. Its average benchmark score is 23021. That sits between the AMD Radeon RX 580 2048SP's 23061 and the NVIDIA GeForce RTX 2080's 22895. The B580 is 0.2% below the AMD part and 0.6% above the NVIDIA part. Against the NVIDIA GeForce RTX 3080's 23172 and the NVIDIA P106-100's 23249, it trails by 0.7% and 1%. The G3 Extreme has no nearest rivals listed, no average score, and no benchmark entries, so the measured side of this comparison belongs entirely to the B580.

Architecture Differences

The architecture gap is substantial. The B580 uses the Xe2-HPG architecture on the BMG-G21 chip and belongs to the Battlemage (Arc 5) generation. The G3 Extreme uses the Xe3-LPG architecture on the Panther Lake chip and belongs to the Arc Graphics-M (Panther Lake) generation. The B580 is built on a 5 nm TSMC process, while the G3 Extreme is built on a 3 nm Intel process.

The B580 has 19,600 million transistors on a 272 mm² die, with a transistor density of 72.1M / mm². The G3 Extreme's transistor count and die size are unknown, so its density is not recorded. The memory designs are also fundamentally different. The B580 has 12 GB of GDDR6 on a 192-bit bus, with 456.0 GB/s of bandwidth and a memory clock of 2375 MHz, listed as 19 Gbps effective. The G3 Extreme uses system shared memory, with a system shared type, a system shared bus width, and system dependent bandwidth.

Compute resources differ across every major unit. The B580 has 2560 shading units, 160 TMUs, 80 ROPs, and 20 RT cores. The G3 Extreme has 1536 shading units, 48 TMUs, 24 ROPs, and 12 RT cores. The resulting rates are far apart: the B580 delivers 213.6 GPixel/s, 427.2 GTexel/s, 13.67 TFLOPS FP32, and 27.34 TFLOPS FP16. The G3 Extreme delivers 60.00 GPixel/s, 120.0 GTexel/s, 7.680 TFLOPS FP32, and 15.36 TFLOPS FP16.

Clock behavior also differs. The B580 has a base clock of 2670 MHz and a boost clock of 2670 MHz. The G3 Extreme has a base clock of 300 MHz and a boost clock of 2500 MHz. Power and physical design follow the same split. The B580 has a 190 W TDP, is dual-slot, uses a 1x 8-pin power connector, and lists a 450 W suggested PSU. The G3 Extreme has an 80 W TDP, is an IGP, uses no power connector, and has no suggested PSU. The B580 uses a PCIe 4.0 x8 bus interface; the G3 Extreme uses an IGP bus interface. Display outputs are 1x HDMI 2.1a and 3x DisplayPort 2.1 on the B580, while the G3 Extreme's outputs are portable device dependent.

Both parts list DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4 support. The B580 measures 272 mm in length, 115 mm in height, and 45 mm in width, while the G3 Extreme has no recorded dimensions. The B580 was released on 2024-12-12 and has Alchemist as its predecessor. The G3 Extreme has a recorded release date of 2026-05-31 and no recorded predecessor.

FAQ

Q: Does the Arc G3 Extreme have any recorded benchmark scores in the database?

A: No. The G3 Extreme has an empty benchmark list, an average benchmark score of 0, and a percentile standing of 50. The Arc B580, by contrast, has recorded scores including a Passmark G3D result of 15748 and a Geekbench Vulkan result of 109672.

Q: How does the Arc B580 compare to its nearest rivals by average score?

A: The B580's average benchmark score is 23021. That is 0.6% above the NVIDIA GeForce RTX 2080's 22895, 0.2% below the AMD Radeon RX 580 2048SP's 23061, 0.7% below the NVIDIA GeForce RTX 3080's 23172, and 1% below the NVIDIA P106-100's 23249.

Q: What memory configurations do the two GPUs use?

A: The B580 uses 12 GB of GDDR6 on a 192-bit bus with 456.0 GB/s bandwidth and a 2375 MHz memory clock, listed as 19 Gbps effective. The G3 Extreme uses system shared memory, with a system shared type, a system shared bus width, and system dependent bandwidth.

Q: Which GPU has more shading units, TMUs, ROPs, and RT cores?

A: The B580 has 2560 shading units, 160 TMUs, 80 ROPs, and 20 RT cores. The G3 Extreme has 1536 shading units, 48 TMUs, 24 ROPs, and 12 RT cores.

Q: Are both GPUs based on the same architecture?

A: No. The B580 uses Xe2-HPG on the BMG-G21 chip, while the G3 Extreme uses Xe3-LPG on the Panther Lake chip. The B580 is built on a 5 nm TSMC process; the G3 Extreme is built on a 3 nm Intel process.

Q: What is the power draw difference?

A: The B580 has a 190 W TDP, while the G3 Extreme has an 80 W TDP. The B580 requires a 450 W suggested PSU and a 1x 8-pin power connector. The G3 Extreme is an IGP with no power connectors and no suggested PSU.

Specification Differences

The following table lists the recorded specification fields that differ between the two parts.

| Field | Intel Arc B580 | Intel Arc G3 Extreme |

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

| Chip | BMG-G21 | Panther Lake |

| Architecture | Xe2-HPG | Xe3-LPG |

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

| Process node | 5 nm | 3 nm |

| Foundry | TSMC | Intel |

| Transistors | 19,600 million | unknown |

| Die size | 272 mm² | unknown |

| Transistor density | 72.1M / mm² | not recorded |

| Base clock | 2670 MHz | 300 MHz |

| Boost clock | 2670 MHz | 2500 MHz |

| Memory clock | 2375 MHz, 19 Gbps effective | System Shared |

| Memory size | 12 GB | System Shared |

| Memory type | GDDR6 | System Shared |

| Memory bus width | 192 bit | System Shared |

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

| Shading units | 2560 | 1536 |

| TMUs | 160 | 48 |

| ROPs | 80 | 24 |

| RT cores | 20 | 12 |

| Pixel rate | 213.6 GPixel/s | 60.00 GPixel/s |

| Texture rate | 427.2 GTexel/s | 120.0 GTexel/s |

| FP32 | 13.67 TFLOPS | 7.680 TFLOPS |

| FP16 | 27.34 TFLOPS (2:1) | 15.36 TFLOPS (2:1) |

| TDP | 190 W | 80 W |

| Slot width | Dual-slot | IGP |

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

| Suggested PSU | 450 W | not recorded |

| Bus interface | PCIe 4.0 x8 | IGP |

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

| Dimensions | 272 mm x 115 mm x 45 mm | not recorded |

| Release date | 2024-12-12 | 2026-05-31 |

| Predecessor | Alchemist | not recorded |

| Benchmark entries | Recorded scores across 3DMark, Geekbench, and Passmark | No recorded scores |

| Percentile vs all GPUs | 68 | 50 |

| Average benchmark score | 23021 | 0 |

| Nearest rivals | AMD Radeon RX 580 2048SP, NVIDIA GeForce RTX 2080, NVIDIA GeForce RTX 3080, NVIDIA P106-100 | None |

The Verdict

The recorded data supports a clear split. The Arc B580 is the only part in this comparison with measured benchmark results, a dedicated memory subsystem, and a discrete add-in card design. Its average benchmark score of 23021 places it in the 68th percentile of all GPUs. The Arc G3 Extreme has an average benchmark score of 0, no recorded benchmark entries, and a 50th percentile standing.

For anyone working from measured performance, the B580 is the only viable candidate in this pairing. It offers 12 GB of dedicated GDDR6, 456.0 GB/s of bandwidth, 2560 shading units, and 20 RT cores. The G3 Extreme is the only candidate for an integrated, low-power context: its 80 W TDP, IGP bus interface, no power connector, and system shared memory define a fundamentally different product. The data indicates that the B580 serves discrete desktop graphics workloads, while the G3 Extreme serves integrated platforms where measured benchmarks are not yet recorded.

Where Each One Wins

Every recorded benchmark win belongs to the Arc B580 because the Arc G3 Extreme has no recorded scores. The B580's 3DMark Steel Nomad DX12 result is 3068, its Geekbench OpenCL result is 92821, its Geekbench Vulkan result is 109672, and its Passmark G3D result is 15748. The G3 Extreme cannot claim a benchmark win from the database.

The specification-level wins split by use case. The G3 Extreme wins on power draw and integration: 80 W TDP versus 190 W, no power connector, IGP bus interface, and system shared memory. It also uses a 3 nm Intel process, while the B580 uses a 5 nm TSMC process. The B580 wins on raw throughput and dedicated memory: 2560 shading units, 20 RT cores, 13.67 TFLOPS FP32, 12 GB GDDR6, and 456.0 GB/s bandwidth. For workloads that require measured performance and dedicated VRAM, the B580 is the clear choice. For integrated, low-power platforms, the G3 Extreme's specifications fit that role.