Intel Arc B370 vs Intel Arc G3 Extreme Comparison

The Verdict

The data separates these two Intel Arc Graphics-M parts by capability tier, not by architecture. The Intel Arc B370 delivers a measured 3DMark Steel Nomad DX12 score of 1184, placing it in the 5th percentile of all GPUs in the database. Its closest measured rival is the ATI Mobility Radeon HD 5570 at 1186, a 0.2% difference, and it trails the AMD Radeon HD 7650M by 0.7%. The Intel Arc G3 Extreme has no recorded benchmark score, no average score, and no nearest rivals, so its only verifiable advantage comes from raw specification data.

For users constrained by power and thermal limits, the Arc B370 is the clear choice from the data. Its 25 W TDP and IGP slot width suit compact portable systems. The Arc G3 Extreme, with an 80 W TDP, demands more from the host platform despite also being an IGP with no power connectors. The Arc B370 has a production status of Active and a release date of 2026-01-26, while the Arc G3 Extreme is also Active but released later, on 2026-05-31.

For users prioritizing raw graphics throughput, the Arc G3 Extreme wins on every computed rate. It delivers 7.680 TFLOPS FP32 versus 6.144 TFLOPS for the Arc B370, a 25% advantage. Its pixel rate of 60.00 GPixel/s beats 48.00 GPixel/s, and its texture rate of 120.0 GTexel/s exceeds 96.00 GTexel/s. The Arc G3 Extreme also offers more shading units, TMUs, ROPs, and RT cores. The trade-off is power: 80 W against 25 W.

The verdict from the recorded data: choose the Arc B370 for lower power draw and a verified benchmark score; choose the Arc G3 Extreme for higher theoretical throughput and a larger execution resource pool, accepting a much higher TDP.

Architecture Differences

Both GPUs share the same fundamental architecture. Each uses the Panther Lake chip and the Xe3-LPG architecture, produced on Intel's 3 nm process node at Intel foundry. Both belong to the Arc Graphics-M (Panther Lake) generation. Transistor counts and die sizes are listed as unknown in the database, so no comparison is possible on those fronts.

The execution resources differ. The Arc B370 has 1280 shading units, 40 TMUs, 20 ROPs, and 10 RT cores. The Arc G3 Extreme has 1536 shading units, 48 TMUs, 24 ROPs, and 12 RT cores. That is 256 more shading units, 8 more TMUs, 4 more ROPs, and 2 more RT cores for the Arc G3 Extreme. Neither part lists tensor cores, so that field is a non-factor.

Clock behavior differs in boost state. Both have a 300 MHz base clock, but the Arc B370 boosts to 2400 MHz while the Arc G3 Extreme boosts to 2500 MHz. The 100 MHz higher boost contributes to the Arc G3 Extreme's higher fill rates and FP32 throughput.

Memory architecture is identical in structure. Both use System Shared memory, with System Shared type, bus width, and System Dependent bandwidth. Neither has dedicated VRAM. API support matches exactly: DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Display outputs are Portable Device Dependent for both. Power connectors are None for both, confirming their integrated design. The bus interface is IGP for both.

The real architectural story is resource scaling on the same 3 nm Xe3-LPG design: the Arc G3 Extreme is a larger configuration of the same chip, with a higher boost clock and a substantially higher power envelope.

FAQ

Q: How much faster is the Intel Arc G3 Extreme in FP32 compute than the Intel Arc B370?

A: The Arc G3 Extreme delivers 7.680 TFLOPS FP32 versus 6.144 TFLOPS for the Arc B370, a 25% advantage.

Q: What are the power draw figures for each GPU?

A: The Intel Arc B370 has a 25 W TDP. The Intel Arc G3 Extreme has an 80 W TDP.

Q: Do these GPUs have dedicated video memory?

A: No. Both use System Shared memory, with System Shared type and bus width, and System Dependent bandwidth.

Q: Which GPU has a higher boost clock?

A: The Intel Arc G3 Extreme boosts to 2500 MHz. The Intel Arc B370 boosts to 2400 MHz. Both have a 300 MHz base clock.

Q: What is the release date difference between the two?

A: The Intel Arc B370 has a release date of 2026-01-26. The Intel Arc G3 Extreme has a release date of 2026-05-31.

Q: Does the Intel Arc B370 have any benchmark data?

A: Yes. It scores 1184 in 3DMark Steel Nomad DX12, placing it in the 5th percentile of all GPUs. The Arc G3 Extreme has no recorded benchmark scores.

Q: What are the RT core counts?

A: The Arc B370 has 10 RT cores. The Arc G3 Extreme has 12 RT cores.

Specification Differences

| Specification | Intel Arc B370 | Intel Arc G3 Extreme |

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

| Boost Clock | 2400 MHz | 2500 MHz |

| Shading Units | 1280 | 1536 |

| TMUs | 40 | 48 |

| ROPs | 20 | 24 |

| RT Cores | 10 | 12 |

| Pixel Rate | 48.00 GPixel/s | 60.00 GPixel/s |

| Texture Rate | 96.00 GTexel/s | 120.0 GTexel/s |

| FP32 | 6.144 TFLOPS | 7.680 TFLOPS |

| FP16 | 12.29 TFLOPS (2:1) | 15.36 TFLOPS (2:1) |

| TDP | 25 W | 80 W |

| Release Date | 2026-01-26 | 2026-05-31 |

| Benchmark Score | 1184 | No recorded score |

| Percentile | 5th | 50th |

Fields that are identical are not listed: base clock (300 MHz), process node (3 nm), foundry (Intel), chip (Panther Lake), architecture (Xe3-LPG), generation (Arc Graphics-M, Panther Lake), memory configuration (System Shared), APIs (DirectX 12 Ultimate 12_2, OpenGL 4.6, Vulkan 1.4), slot width (IGP), power connectors (None), bus interface (IGP), display outputs (Portable Device Dependent), and production status (Active).

Head-to-Head Benchmarks

No direct head-to-head benchmark results exist in the database for these two GPUs, and the wins counters are zero for both sides. The only recorded benchmark belongs to the Intel Arc B370: a 3DMark Steel Nomad DX12 score of 1184. That score places it in the 5th percentile of all GPUs. Its nearest rival in the database is the ATI Mobility Radeon HD 5570 with an average score of 1186, making the Arc B370 0.2% slower. It is also 0.5% slower than the ATI Radeon HD 5770 (1190) and 0.7% slower than the AMD Radeon HD 7650M (1192). It is 1.4% faster than the AMD FirePro M2000 (1168).

The Arc G3 Extreme has no benchmark entries, so its measured performance cannot be compared directly. The data instead supports a specification-based comparison. The Arc G3 Extreme's FP32 throughput of 7.680 TFLOPS is exactly 25% higher than the Arc B370's 6.144 TFLOPS. Its FP16 output of 15.36 TFLOPS (2:1) is likewise 25% higher than 12.29 TFLOPS (2:1). Pixel rate scales from 48.00 GPixel/s to 60.00 GPixel/s, a 25% increase. Texture rate scales from 96.00 GTexel/s to 120.0 GTexel/s, also a 25% increase.

The resource counts scale consistently. The Arc G3 Extreme has 20% more shading units (1536 versus 1280), 20% more TMUs (48 versus 40), 20% more ROPs (24 versus 20), and 20% more RT cores (12 versus 10). The boost clock rises by 100 MHz, from 2400 MHz to 2500 MHz, about 4.2% higher. The TDP, however, rises by 55 W, from 25 W to 80 W, a 220% increase.

The benchmark implication is straightforward: the Arc B370 has a verified, if modest, performance footprint in the database, sitting near the bottom of the percentile ranking. The Arc G3 Extreme's specification advantage is uniform across every compute and fill-rate metric, but without a recorded score, its actual standing among all GPUs cannot be confirmed by measurement. The 50th percentile listed for the Arc G3 Extreme is a database placeholder, not a score-derived rank, since its average benchmark score is 0 and no nearest rivals exist.

The data confirms that the Arc G3 Extreme is the higher-throughput part on paper, with a 25% lead in FP32, FP16, pixel rate, and texture rate, plus a larger execution resource configuration. The Arc B370 is the only one of the two with a measurable benchmark result, and it sits within 1% of several older discrete GPUs in the database. The 80 W TDP of the Arc G3 Extreme is the cost of that scaling, more than triple the 25 W TDP of the Arc B370. For portable, thermally constrained designs, the Arc B370's measured score and lower power draw make it the safer data-backed option; for maximum integrated graphics throughput, the Arc G3 Extreme's specifications point to a higher ceiling, pending actual benchmark data.