Intel Arc 130T Mobile vs Intel Arc B770 Comparison

Where Each One Wins

The Intel Arc 130T Mobile and Intel Arc B770 occupy entirely different segments of the graphics landscape, and the recorded data makes that distinction clear from the outset. The Arc 130T Mobile is an integrated graphics processor built into the Arrow Lake-H mobile chip, designed for thin-and-light laptops where power efficiency and compactness take priority over raw throughput. The Arc B770, by contrast, is a discrete desktop add-in board based on the Battlemage architecture, engineered for high-performance gaming and compute workloads where sustained output and dedicated memory matter most.

Looking at the raw throughput metrics, the Arc B770 wins decisively in every computational category. Its FP32 performance reaches 19.66 TFLOPS against the Arc 130T Mobile's 3.942 TFLOPS, a gap of roughly 5x. The B770 also delivers 614.4 GTexel/s texture fill versus 123.2 GTexel/s for the mobile part, and 307.2 GPixel/s pixel throughput compared to 61.60 GPixel/s. These are not marginal differences; they represent fundamentally different performance tiers.

The Arc 130T Mobile wins in the efficiency and integration categories, though the database does not provide direct power consumption per frame metrics. Its 35 W TDP places it firmly in the ultraportable segment, while the B770's 225 W TDP demands a desktop chassis with proper airflow. The mobile part requires no power connectors and uses system-shared memory, making it trivial to integrate into a laptop motherboard. The B770 requires dual-slot cooling and both a 6-pin and 8-pin power connector, plus a suggested PSU of 550 W.

The use-case split is straightforward. The Arc 130T Mobile suits everyday computing, light media tasks, and modest gaming at lower resolutions, all within a power envelope that a laptop battery can sustain. The Arc B770 targets demanding gaming at high settings, content creation workflows, and any workload that benefits from 16 GB of dedicated GDDR6 memory operating at 512.0 GB/s bandwidth. The mobile part's memory bandwidth is "System Dependent," meaning it shares the system's main memory and is limited by whatever the laptop's memory subsystem provides, a constraint the discrete card does not face.

Architecture Differences

The two GPUs come from different architectural generations and target different physical implementations. The Arc 130T Mobile uses the Xe-LPG+ architecture, built on an Arrow Lake-H chip at TSMC's 5 nm process node. The Arc B770 uses the Xe2-HPG architecture, built on the BMG-G31 chip, also at TSMC's 5 nm node. Both share the same foundry and process geometry, but the underlying designs diverge significantly.

The B770's die measures 368 mm², a substantial silicon area that accommodates its much larger execution engine. The mobile part's die size is listed as unknown in the database, but its execution resources tell the story. The B770 packs 4096 shading units, 256 texture mapping units, 128 render output units, and 32 ray tracing cores. The Arc 130T Mobile has 896 shading units, 56 TMUs, 28 ROPs, and 7 RT cores. The B770 has roughly 4.6x the shading units, 4.6x the TMUs, 4.6x the ROPs, and 4.6x the RT cores compared to the mobile part.

Clock speeds also differ. The Arc 130T Mobile runs at a base of 300 MHz and boosts to 2200 MHz. The Arc B770 starts at 2100 MHz base and boosts to 2400 MHz. The mobile part's low base clock reflects power management priorities, while the discrete card can sustain much higher baseline frequencies thanks to its dedicated cooling solution and power delivery.

Memory architecture presents the most fundamental split. The Arc 130T Mobile uses "System Shared" memory, with the type, bus width, and bandwidth all listed as system-dependent. This means the GPU borrows from the host system's RAM, and performance scales with the laptop's memory configuration. The Arc B770 has its own 16 GB of GDDR6 on a 256-bit bus, delivering 512.0 GB/s of dedicated bandwidth. The memory clock is 2000 MHz with 16 Gbps effective data rate.

API support is identical across both parts: DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The B770 uses a PCIe 4.0 x16 bus interface, while the mobile part uses an IGP interface, meaning it communicates over the processor's integrated bus rather than a dedicated expansion slot. Display outputs differ accordingly: the B770 provides 1x HDMI 2.1a and 3x DisplayPort 2.1, while the mobile part lists "Portable Device Dependent" outputs, tied to whatever ports the laptop manufacturer integrates.

Head-to-Head Benchmarks

The database does not include any head-to-head benchmark scores for these two products. The winsA and winsB fields are both set to 0, and the headToHeadBenchmarks array is empty. This absence of direct measurement data means the comparison must rely on the specification-level differences recorded in the database.

What the recorded data does show is a consistent pattern of the B770 exceeding the mobile part across every raw performance metric. The FP32 gap of 19.66 TFLOPS versus 3.942 TFLOPS indicates the B770 delivers roughly 5x the single-precision compute throughput. The texture rate difference of 614.4 GTexel/s versus 123.2 GTexel/s similarly points to a 5x advantage in texture-heavy workloads. Pixel throughput shows the B770 at 307.2 GPixel/s versus 61.60 GPixel/s, again approximately a 5x lead.

Ray tracing resources follow the same proportion: 32 RT cores on the B770 versus 7 on the Arc 130T Mobile. This suggests the discrete card will handle ray-traced effects with substantially higher throughput, though the database does not provide specific ray tracing benchmarks to quantify real-world frame rates.

The B770 also benefits from its dedicated memory subsystem. With 16 GB of GDDR6 and 512.0 GB/s bandwidth, it avoids the contention and latency that system-shared memory introduces. The mobile part's bandwidth is listed as "System Dependent," so its effective throughput depends entirely on the laptop's memory configuration. A high-end laptop with fast DDR5 could narrow the gap somewhat, but the database does not provide the specific numbers needed to quantify that scenario.

The power draw difference is stark: 35 W for the mobile part versus 225 W for the discrete card. This 190 W gap means the B770 requires robust cooling and a capable power supply, while the Arc 130T Mobile can operate within the thermal and power constraints of a slim laptop chassis.

FAQ

Q: Which GPU has higher raw compute throughput?

A: The Intel Arc B770 delivers 19.66 TFLOPS FP32 performance, compared to 3.942 TFLOPS for the Intel Arc 130T Mobile, a difference of approximately 5x.

Q: How do the memory systems differ between the two?

A: The Arc B770 uses 16 GB of dedicated GDDR6 memory on a 256-bit bus with 512.0 GB/s bandwidth. The Arc 130T Mobile uses system-shared memory, with its type, bus width, and bandwidth all dependent on the host laptop's configuration.

Q: What are the power requirements for each product?

A: The Arc 130T Mobile has a 35 W TDP and requires no power connectors, as it is an integrated GPU. The Arc B770 has a 225 W TDP, requires one 6-pin and one 8-pin power connector, and carries a suggested PSU rating of 550 W.

Q: Do both GPUs support the same APIs?

A: Yes, both the Arc 130T Mobile and the Arc B770 support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: What process node and foundry are used for each chip?

A: Both the Arc 130T Mobile's Arrow Lake-H chip and the Arc B770's BMG-G31 chip are manufactured by TSMC on a 5 nm process node.

Q: How do the physical form factors differ?

A: The Arc 130T Mobile is an integrated GPU (IGP) with a slot width listed as IGP, meaning it is embedded in the processor package. The Arc B770 is a dual-slot discrete card that connects via PCIe 4.0 x16 and provides 1x HDMI 2.1a and 3x DisplayPort 2.1 outputs.

Specification Differences

| Specification | Intel Arc 130T Mobile | Intel Arc B770 |

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

| Chip | Arrow Lake-H | BMG-G31 |

| Architecture | Xe-LPG+ | Xe2-HPG |

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

| Die Size | Unknown | 368 mm² |

| Base Clock | 300 MHz | 2100 MHz |

| Boost Clock | 2200 MHz | 2400 MHz |

| Memory Size | System Shared | 16 GB |

| Memory Type | System Shared | GDDR6 |

| Memory Bus Width | System Shared | 256 bit |

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

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

| Shading Units | 896 | 4096 |

| TMUs | 56 | 256 |

| ROPs | 28 | 128 |

| Ray Tracing Cores | 7 | 32 |

| Pixel Rate | 61.60 GPixel/s | 307.2 GPixel/s |

| Texture Rate | 123.2 GTexel/s | 614.4 GTexel/s |

| FP32 Performance | 3.942 TFLOPS | 19.66 TFLOPS |

| FP16 Performance | 7.885 TFLOPS (2:1) | 39.32 TFLOPS (2:1) |

| TDP | 35 W | 225 W |

| Slot Width | IGP | Dual-slot |

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

| Suggested PSU | None | 550 W |

| Bus Interface | IGP | PCIe 4.0 x16 |

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

| Release Date | 2025-01-12 | 2025-12-31 |

| Predecessor | HD Graphics-M | Alchemist |

The production status for the Arc 130T Mobile is listed as Active, while the Arc B770's production status is not recorded. Both products share the same DirectX, OpenGL, and Vulkan API support, and neither has a recorded launch MSRP in the database.