Intel Arc B770 vs Intel Arc Graphics 128EU Mobile Comparison

Head-to-Head Benchmarks

The recorded database contains no head-to-head benchmark entries for the Intel Arc B770 versus the Intel Arc Graphics 128EU Mobile. The wins counter for each product is zero, and the benchmark result sets are empty for both entries. This absence of direct comparative data means the analysis must rely on the architectural and specification differences documented in the database.

The Intel Arc B770 carries an average benchmark score of zero, as does the Intel Arc Graphics 128EU Mobile. Both products sit at the 50th percentile against all GPUs in the database. With no benchmark scores recorded, the percentile values indicate a neutral placement rather than a performance ranking. The database shows no nearest rivals for either product, which further limits comparative analysis.

The specification sheets reveal the scale of the gap. The Arc B770 delivers 19.66 TFLOPS of FP32 compute, while the mobile part reaches 4.608 TFLOPS. That is a 4.27x difference in raw floating-point throughput. The pixel rate tells a similar story: 307.2 GPixel/s for the B770 versus 72.00 GPixel/s for the mobile chip, a 4.27x gap. Texture rate stands at 614.4 GTexel/s against 144.0 GTexel/s, again a 4.27x multiple.

Memory bandwidth separates the two decisively. The B770 connects to 16 GB of GDDR6 across a 256-bit bus, producing 512.0 GB/s of bandwidth. The mobile part uses system shared memory with bandwidth described as system dependent. No fixed bandwidth number exists for the mobile chip. The B770 also has a dedicated memory clock of 2000 MHz with 16 Gbps effective speed, while the mobile part lists no standalone memory clock.

Where Each One Wins

The Arc B770 wins in every measurable specification category recorded in the database. Its shading unit count of 4096 quadruples the 1024 units in the mobile chip. Texture mapping units number 256 versus 64, and raster operation units stand at 128 versus 32. The B770 includes 32 dedicated ray tracing cores; the mobile part lists none.

Clock speeds present a more nuanced picture. The B770 has a base clock of 2100 MHz and a boost of 2400 MHz. The mobile chip starts at 300 MHz but boosts to 2250 MHz. The boost clocks sit relatively close, with the B770 only 150 MHz higher. The base clock gap is substantial, however, with the B770 running 1800 MHz higher at idle or low load.

The mobile part wins in power efficiency from the recorded data. Its thermal design power is 28 W against 225 W for the B770. The mobile chip is an integrated graphics processor, requiring no power connectors and no suggested power supply. The B770 needs dual-slot cooling, a 6-pin and 8-pin power connector, and a 550 W suggested power supply.

The mobile chip also wins on physical integration. It uses a ring bus interface and depends on portable device display outputs. The B770 requires a PCIe 4.0 x16 slot and offers 1x HDMI 2.1a plus 3x DisplayPort 2.1 outputs.

Architecture Differences

The two products come from different Intel architectures. The Arc B770 uses the Xe2-HPG architecture on the BMG-G31 chip, belonging to the Battlemage generation under the Arc 7 family. Its predecessor is listed as Alchemist. The Arc Graphics 128EU Mobile uses the Xe-LPG architecture on the Meteor Lake chip, belonging to the Arc Graphics-M generation. Its predecessor is HD Graphics-M.

Process technology diverges by foundry and node. The B770 is fabricated on a 5 nm process at TSMC. The mobile chip uses a 10 nm process at Intel. The die size for the B770 is 368 mm²; the mobile chip has no recorded die size. Transistor counts are unknown for both, and transistor density is not recorded.

The B770 supports DirectX 12 Ultimate at feature level 12_2. The mobile part supports DirectX 12 at feature level 12_1. Both support OpenGL 4.6 and Vulkan 1.4. The B770's FP16 throughput is 39.32 TFLOPS at a 2:1 ratio, while the mobile chip reaches 9.216 TFLOPS at the same ratio.

The B770's release date is recorded as December 31, 2025. The mobile chip launched December 13, 2023. The production status for the B770 is not recorded, while the mobile chip is marked as active production. The mobile chip's release date precedes the B770 by roughly two years.

FAQ

Q: Which GPU has higher raw compute throughput?

A: The Arc B770 delivers 19.66 TFLOPS of FP32 compute, which is 4.27x higher than the 4.608 TFLOPS from the Arc Graphics 128EU Mobile.

Q: Do both GPUs support the same API feature levels?

A: No. The Arc B770 supports DirectX 12 Ultimate at feature level 12_2, while the mobile chip supports DirectX 12 at feature level 12_1. Both support OpenGL 4.6 and Vulkan 1.4.

Q: How much memory does each GPU have?

A: The Arc B770 has 16 GB of dedicated GDDR6 memory on a 256-bit bus with 512.0 GB/s bandwidth. The mobile chip uses system shared memory with system dependent bandwidth.

Q: What are the power requirements?

A: The Arc B770 has a 225 W thermal design power, requires a 550 W suggested power supply, and uses 1x 6-pin plus 1x 8-pin power connectors. The mobile chip has a 28 W TDP, no power connectors, and no suggested PSU.

Q: Which GPU has more shading units?

A: The Arc B770 has 4096 shading units, exactly four times the 1024 shading units in the Arc Graphics 128EU Mobile.

Q: Are the architectures different?

A: Yes. The B770 uses Xe2-HPG on the BMG-G31 chip from the Battlemage generation. The mobile part uses Xe-LPG on the Meteor Lake chip from the Arc Graphics-M generation.

Specification Differences

| Specification | Intel Arc B770 | Intel Arc Graphics 128EU Mobile |

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

| Chip | BMG-G31 | Meteor Lake |

| Architecture | Xe2-HPG | Xe-LPG |

| Generation | Battlemage (Arc 7) | Arc Graphics-M (Meteor Lake) |

| Process Node | 5 nm | 10 nm |

| Foundry | TSMC | Intel |

| Die Size | 368 mm² | Not recorded |

| Base Clock | 2100 MHz | 300 MHz |

| Boost Clock | 2400 MHz | 2250 MHz |

| Memory Clock | 2000 MHz, 16 Gbps effective | System Shared |

| Memory Size | 16 GB | System Shared |

| Memory Type | GDDR6 | System Shared |

| Memory Bus | 256 bit | System Shared |

| Memory Bandwidth | 512.0 GB/s | System Dependent |

| Shading Units | 4096 | 1024 |

| TMUs | 256 | 64 |

| ROPs | 128 | 32 |

| RT Cores | 32 | Not recorded |

| Pixel Rate | 307.2 GPixel/s | 72.00 GPixel/s |

| Texture Rate | 614.4 GTexel/s | 144.0 GTexel/s |

| FP32 | 19.66 TFLOPS | 4.608 TFLOPS |

| FP16 | 39.32 TFLOPS | 9.216 TFLOPS |

| TDP | 225 W | 28 W |

| Slot Width | Dual-slot | IGP |

| Power Connectors | 1x 6-pin + 1x 8-pin | None |

| Suggested PSU | 550 W | None |

| Bus Interface | PCIe 4.0 x16 | Ring Bus |

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

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

| Release Date | 2025-12-31 | 2023-12-13 |

| Predecessor | Alchemist | HD Graphics-M |

| Production Status | Not recorded | Active |

The Verdict

The database shows the Intel Arc B770 as a dedicated desktop graphics card with substantial compute resources. Its 4096 shading units, 32 ray tracing cores, and 512.0 GB/s memory bandwidth position it for demanding workloads. The 16 GB GDDR6 frame buffer provides ample capacity for large datasets or high-resolution rendering. The 225 W power envelope indicates a card designed for full-size desktop systems with adequate cooling and power delivery.

The Intel Arc Graphics 128EU Mobile serves a different purpose entirely. Its 28 W thermal design power and integrated graphics form factor target portable devices. The 1024 shading units and system shared memory align with lightweight mobile workloads. The boost clock of 2250 MHz shows the chip can reach reasonable frequencies when power and thermal conditions permit, but the base clock of 300 MHz reflects power-saving operation at idle.

Users with a desktop system needing maximum compute throughput should select the Arc B770 based on the recorded data. Its FP32 performance is 4.27x higher, and its dedicated memory subsystem removes reliance on system memory. Users with a mobile device looking for integrated graphics should select the Arc Graphics 128EU Mobile, as it is the only one of the two designed for that form factor. The two products target separate market segments, and the data confirms no overlap in their intended use cases.