Intel Arc Graphics 128EU Mobile vs Intel Arc Pro B370 Comparison

Where Each One Wins

The recorded data for the Intel Arc Graphics 128EU Mobile and the Intel Arc Pro B370 contains no completed benchmark runs, no win counts, and no rival comparison scores. The database lists zero head-to-head benchmark entries, zero wins for the 128EU Mobile, and zero wins for the Pro B370. Consequently, any use-case split based on measured benchmark victories cannot be derived from the available records. The only measurable differentiators are architectural, physical, and clock-related specifications.

The 128EU Mobile delivers a higher pixel fill rate of 72.00 GPixel/s compared to 48.00 GPixel/s on the Pro B370. This indicates that the 128EU Mobile has an advantage in scenarios that are heavily dependent on raster operations, such as pixel shading throughput. The Pro B370 counters with a higher texture fill rate deficit, delivering 96.00 GTexel/s versus 144.0 GTexel/s for the 128EU Mobile. These fill rate figures are the only performance-oriented numbers present in the database, and they favor the 128EU Mobile in both categories.

The Pro B370, however, leads in raw compute throughput. Its FP32 performance is 6.144 TFLOPS, and its FP16 performance is 12.29 TFLOPS (2:1). The 128EU Mobile delivers 4.608 TFLOPS FP32 and 9.216 TFLOPS FP16 (2:1). The Pro B370 is therefore positioned for workloads that scale with shader compute, while the 128EU Mobile is positioned for workloads that stress pixel and texture processing. Without benchmark data, these architectural figures are the sole basis for determining where each part wins.

Architecture Differences

The two GPUs come from different Intel architectures and manufacturing nodes. The Intel Arc Graphics 128EU Mobile uses the Xe-LPG architecture on a 10 nm process, built on the Meteor Lake chip. The Intel Arc Pro B370 uses the Xe3-LPG architecture on a 3 nm process, built on the Panther Lake chip. The 128EU Mobile belongs to the Arc Graphics-M (Meteor Lake) generation, while the Pro B370 belongs to the Arc Graphics-WM (Panther Lake) generation. The foundry for both is Intel.

Shader resources differ significantly. The 128EU Mobile contains 1024 shading units, 64 texture mapping units, and 32 raster output units. The Pro B370 contains 1280 shading units, 40 texture mapping units, and 20 raster output units. The 128EU Mobile has more TMUs and ROPs, while the Pro B370 has more shading units. The Pro B370 also includes 10 ray tracing cores, whereas the 128EU Mobile lists no ray tracing core count. Neither GPU lists tensor cores.

The Pro B370 supports DirectX 12 Ultimate (12_2), a higher API tier than the 128EU Mobile's DirectX 12 (12_1). Both support OpenGL 4.6 and Vulkan 1.4. The Pro B370 has no power connectors, while the 128EU Mobile does not list a power connector configuration. Both are IGP slot width devices, and both have portable device dependent display outputs.

Memory configurations are identical in form: system shared memory, system shared type, system shared bus width, and system dependent bandwidth. The Pro B370 lists its transistor count and die size as unknown, while the 128EU Mobile has no recorded values for either. The bus interface differs, with the 128EU Mobile using a Ring Bus and the Pro B370 using IGP.

Head-to-Head Benchmarks

The database records no head-to-head benchmark results between these two GPUs. There are no scores, no delta percentages, and no nearest rival entries for either product. As a result, the only quantitative comparisons available come from specification-level measurements.

In FP32 compute, the Pro B370 produces 6.144 TFLOPS, which is 33.3% higher than the 128EU Mobile's 4.608 TFLOPS. In FP16 compute, the Pro B370 produces 12.29 TFLOPS, which is 33.3% higher than the 128EU Mobile's 9.216 TFLOPS. Both figures use a 2:1 ratio for FP16.

In pixel throughput, the 128EU Mobile reaches 72.00 GPixel/s, which is 50.0% higher than the Pro B370's 48.00 GPixel/s. In texture throughput, the 128EU Mobile reaches 144.0 GTexel/s, which is 50.0% higher than the Pro B370's 96.00 GTexel/s.

Clock speeds also differ. The 128EU Mobile has a base clock of 300 MHz and a boost clock of 2250 MHz. The Pro B370 has the same base clock of 300 MHz but a higher boost clock of 2400 MHz. The Pro B370's boost clock is 6.7% higher than the 128EU Mobile's.

Power draw is comparable but not identical. The 128EU Mobile has a TDP of 28 W. The Pro B370 has a TDP of 25 W, which is 10.7% lower. Both are integrated graphics parts with no dedicated memory bus.

FAQ

Q: Which GPU has higher raw compute throughput?

A: The Intel Arc Pro B370. It delivers 6.144 TFLOPS FP32 and 12.29 TFLOPS FP16 (2:1), compared to 4.608 TFLOPS FP32 and 9.216 TFLOPS FP16 (2:1) for the Intel Arc Graphics 128EU Mobile.

Q: Which GPU has higher pixel and texture fill rates?

A: The Intel Arc Graphics 128EU Mobile. Its pixel rate is 72.00 GPixel/s versus 48.00 GPixel/s for the Pro B370, and its texture rate is 144.0 GTexel/s versus 96.00 GTexel/s.

Q: Do these GPUs support different DirectX versions?

A: Yes. The Intel Arc Pro B370 supports DirectX 12 Ultimate (12_2), while the Intel Arc Graphics 128EU Mobile supports DirectX 12 (12_1). Both support OpenGL 4.6 and Vulkan 1.4.

Q: What are the boost clock speeds of each GPU?

A: The Intel Arc Graphics 128EU Mobile boosts to 2250 MHz. The Intel Arc Pro B370 boosts to 2400 MHz. Both have a base clock of 300 MHz.

Q: How many shading units does each GPU have?

A: The Intel Arc Graphics 128EU Mobile has 1024 shading units. The Intel Arc Pro B370 has 1280 shading units.

Q: Does the Intel Arc Pro B370 have ray tracing cores?

A: Yes, it lists 10 ray tracing cores. The Intel Arc Graphics 128EU Mobile does not list a ray tracing core count.

Specification Differences

The table below lists only the fields where the two GPUs differ, based on the recorded data.

| Field | Intel Arc Graphics 128EU Mobile | Intel Arc Pro B370 |

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

| Chip | Meteor Lake | Panther Lake |

| Architecture | Xe-LPG | Xe3-LPG |

| Generation | Arc Graphics-M (Meteor Lake) | Arc Graphics-WM (Panther Lake) |

| Process Node | 10 nm | 3 nm |

| Transistors | Not recorded | unknown |

| Die Size | Not recorded | unknown |

| Boost Clock | 2250 MHz | 2400 MHz |

| Shading Units | 1024 | 1280 |

| TMUs | 64 | 40 |

| ROPs | 32 | 20 |

| Ray Tracing Cores | Not recorded | 10 |

| Pixel Rate | 72.00 GPixel/s | 48.00 GPixel/s |

| Texture Rate | 144.0 GTexel/s | 96.00 GTexel/s |

| FP32 | 4.608 TFLOPS | 6.144 TFLOPS |

| FP16 | 9.216 TFLOPS (2:1) | 12.29 TFLOPS (2:1) |

| TDP | 28 W | 25 W |

| Power Connectors | Not recorded | None |

| Bus Interface | Ring Bus | IGP |

| DirectX | 12 (12_1) | 12 Ultimate (12_2) |

| Release Date | 2023-12-13T17:00:00.000Z | 2026-01-26T17:00:00.000Z |

| Predecessor | HD Graphics-M | HD Graphics-WM |

Fields that are identical between the two include manufacturer (Intel), base clock (300 MHz), memory size/type/bus width (System Shared), memory bandwidth (System Dependent), slot width (IGP), display outputs (Portable Device Dependent), OpenGL (4.6), Vulkan (1.4), production status (Active), and launch MSRP (not recorded for either). Both list no successor.

The Verdict

The data positions the Intel Arc Pro B370 as the compute-oriented part. Its 1280 shading units, 10 ray tracing cores, 6.144 TFLOPS FP32, 12.29 TFLOPS FP16, 2400 MHz boost clock, and DirectX 12 Ultimate support all point toward shader-heavy and ray-traced workloads. The 33.3% advantage in FP32 and FP16 throughput over the 128EU Mobile is the largest compute gap in the recorded specifications. The Pro B370 also draws 25 W, which is 3 W less than the 128EU Mobile's 28 W.

The Intel Arc Graphics 128EU Mobile is the raster-throughput part. It has 64 TMUs and 32 ROPs, giving it a 50.0% higher pixel rate (72.00 GPixel/s versus 48.00 GPixel/s) and a 50.0% higher texture rate (144.0 GTexel/s versus 96.00 GTexel/s) than the Pro B370. Its architecture is older (Xe-LPG on 10 nm versus Xe3-LPG on 3 nm), and it lacks a listed ray tracing core count, but its fill rate metrics are clearly superior.

For workloads that depend on pixel and texture processing, the 128EU Mobile is the stronger choice according to the recorded data. For workloads that depend on shader compute, ray tracing, and API feature level, the Pro B370 is the stronger choice. Both occupy the IGP form factor, both rely on system shared memory with system dependent bandwidth, and neither has a recorded launch MSRP. The absence of benchmark scores means the verdict rests entirely on the specification differences documented in the database.