Intel Arc B770 vs Intel Arc Graphics 64EU Mobile Comparison

Head-to-Head Benchmarks

The recorded data shows no direct benchmark comparisons between the Intel Arc B770 and the Intel Arc Graphics 64EU Mobile. The head-to-head benchmark list is empty, and the win tally sits at zero for both parts. However, the raw specifications allow for a clear quantitative separation. The Arc B770 delivers 19.66 TFLOPS of FP32 compute, while the mobile integrated part reaches 1.792 TFLOPS. That is an 11x advantage in raw shader throughput. The B770's pixel rate of 307.2 GPixel/s compares to 28.00 GPixel/s for the 64EU Mobile, a 10.9x gap. Texture rate follows the same pattern: 614.4 GTexel/s versus 56.00 GTexel/s, again an 11x difference. These ratios are consistent across the three primary throughput metrics, indicating the performance separation is roughly uniform rather than concentrated in one pipeline stage.

Memory bandwidth tells a similar story. The B770 uses a 256-bit GDDR6 interface with 512.0 GB/s of bandwidth. The 64EU Mobile relies on system shared memory with bandwidth listed as system dependent, making direct comparison impossible, but the dedicated 16 GB allocation on the B770 versus a shared pool with no fixed size gives the discrete card a structural advantage in sustained workloads.

Clock speeds reverse the expected relationship. The mobile part boosts to 1750 MHz, while the B770 boosts to 2400 MHz. The B770's base clock of 2100 MHz is higher than the mobile part's boost clock, which reflects the power and thermal headroom of a 225 W dual-slot discrete card versus a 65 W integrated GPU. The mobile part's 300 MHz base clock is unusually low, indicating aggressive power gating at idle or light load.

Where Each One Wins

The Arc B770 wins in every scenario that demands sustained throughput. Its 4096 shading units, 256 TMUs, and 128 ROPs allow it to process large batches of geometry, texels, and pixels simultaneously. The 32 ray tracing cores give it dedicated hardware for ray traced workloads, a feature the 64EU Mobile lacks entirely. The 16 GB GDDR6 frame buffer supports high resolution textures and large datasets, while the 512.0 GB/s bandwidth prevents memory from bottlenecking the compute units.

The Arc Graphics 64EU Mobile wins in scenarios defined by power efficiency and physical integration. Its 65 W TDP fits within laptop thermal envelopes, and its IGP slot width means it requires no separate power connectors or expansion slot. The ring bus interface ties it directly to the CPU, reducing latency for shared memory access. Its 512 shading units and 32 TMUs are modest but sufficient for basic display output, video decode, and light 3D workloads where the discrete card's full power cannot be utilized.

The percentile data places both at the 50th percentile versus all GPUs, which is a statistical artifact of the empty benchmark set rather than a meaningful comparison. The database records no average benchmark scores for either part. The specification deltas are the only reliable basis for distinguishing their intended roles.

Architecture Differences

The Arc B770 uses the BMG-G31 chip built on the Xe2-HPG architecture, fabricated on a 5 nm process at TSMC. The die size is 368 mm². The 64EU Mobile uses the Meteor Lake chip on the Xe-LPG architecture, fabricated on a 10 nm process at Intel. The Xe2-HPG architecture is designed for high performance discrete graphics, while Xe-LPG targets integrated graphics within a mobile processor.

The B770 belongs to the Battlemage (Arc 7) generation, succeeding Alchemist. The 64EU Mobile belongs to the Arc Graphics-M (Meteor Lake) generation, succeeding HD Graphics-M. The B770 supports DirectX 12 Ultimate (12_2), while the mobile part supports DirectX 12 (12_1). Both support OpenGL 4.6 and Vulkan 1.4.

The B770 has 4096 shading units, 256 TMUs, 128 ROPs, and 32 ray tracing cores. The 64EU Mobile has 512 shading units, 32 TMUs, and 16 ROPs, with no ray tracing cores listed. The B770's memory system consists of 16 GB GDDR6 on a 256-bit bus with 512.0 GB/s bandwidth. The mobile part uses system shared memory with system dependent bandwidth.

The B770 is a dual-slot card requiring 1x 6-pin plus 1x 8-pin power connectors and a 550 W suggested PSU. The 64EU Mobile is an integrated GPU with no power connectors and no suggested PSU listed. The B770 uses PCIe 4.0 x16, while the mobile part uses a ring bus interface.

Display outputs differ significantly. The B770 provides 1x HDMI 2.1 and 3x DisplayPort 2.1. The mobile part's outputs are listed as portable device dependent, meaning they vary by laptop implementation.

FAQ

Q: Which GPU has more shading units?

A: The Arc B770 has 4096 shading units, compared to 512 on the Arc Graphics 64EU Mobile, an 8x difference.

Q: Does the mobile Arc support ray tracing?

A: The B770 lists 32 ray tracing cores. The 64EU Mobile lists no ray tracing cores in the database.

Q: How do the memory subsystems compare?

A: The B770 uses 16 GB of GDDR6 on a 256-bit bus with 512.0 GB/s bandwidth. The 64EU Mobile uses system shared memory with system dependent bandwidth and no fixed capacity.

Q: What are the power requirements for each?

A: The B770 has a 225 W TDP and requires 1x 6-pin plus 1x 8-pin power connectors with a 550 W suggested PSU. The 64EU Mobile has a 65 W TDP and requires no power connectors.

Q: Which API levels do they support?

A: The B770 supports DirectX 12 Ultimate (12_2), while the 64EU Mobile supports DirectX 12 (12_1). Both support OpenGL 4.6 and Vulkan 1.4.

Q: What process nodes are used?

A: The B770 is fabricated on a 5 nm process at TSMC. The 64EU Mobile is fabricated on a 10 nm process at Intel.

Specification Differences

| Field | Intel Arc B770 | Intel Arc Graphics 64EU 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 listed |

| Base Clock | 2100 MHz | 300 MHz |

| Boost Clock | 2400 MHz | 1750 MHz |

| Memory Size | 16 GB | System Shared |

| Memory Type | GDDR6 | System Shared |

| Memory Bus Width | 256 bit | System Shared |

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

| Shading Units | 4096 | 512 |

| TMUs | 256 | 32 |

| ROPs | 128 | 16 |

| Ray Tracing Cores | 32 | not listed |

| Pixel Rate | 307.2 GPixel/s | 28.00 GPixel/s |

| Texture Rate | 614.4 GTexel/s | 56.00 GTexel/s |

| FP32 Performance | 19.66 TFLOPS | 1.792 TFLOPS |

| FP16 Performance | 39.32 TFLOPS (2:1) | 3.584 TFLOPS (2:1) |

| TDP | 225 W | 65 W |

| Slot Width | Dual-slot | IGP |

| Power Connectors | 1x 6-pin + 1x 8-pin | not listed |

| Suggested PSU | 550 W | not listed |

| Bus Interface | PCIe 4.0 x16 | Ring Bus |

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

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

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

| Predecessor | Alchemist | HD Graphics-M |

| Production Status | not listed | Active |

The Verdict

The Arc B770 is the choice for any workload that requires maximum compute throughput, high resolution rendering, or ray tracing. Its 19.66 TFLOPS FP32 performance, 512.0 GB/s memory bandwidth, and 16 GB dedicated frame buffer position it for demanding tasks. The 64EU Mobile cannot match these figures; its 1.792 TFLOPS and system dependent bandwidth limit it to lighter duties.

The Arc Graphics 64EU Mobile is the choice for ultraportable systems where the 65 W TDP and IGP form factor are mandatory. Its ring bus connection to the CPU and lack of external power requirements make it suitable for integrated laptop designs. The active production status indicates ongoing availability, while the B770's production status is not listed.

The release dates separate them by two years. The mobile part launched on 2023-12-13, while the B770 is dated 2025-12-31. Both sit at the 50th percentile versus all GPUs in the database, but that metric reflects missing benchmark data rather than equivalent performance. The specification table shows a discrete GPU and an integrated GPU with clearly different design targets. Users with a PCIe 4.0 x16 slot and a 550 W PSU can accommodate the B770. Users constrained to a laptop chassis have no choice but the 64EU Mobile. The data does not present them as competitors; it presents them as solutions for different physical and power environments.