Intel Arc B770 vs NVIDIA GeForce RTX 5070 Mobile Comparison

The database compares two GPUs with very different design targets: the Intel Arc B770 and the NVIDIA GeForce RTX 5070 Mobile. Both use a TSMC 5 nm process and support the same API set, but the Arc B770 is a 225 W dual-slot part with 16 GB of GDDR6 memory, while the RTX 5070 Mobile is a 50 W IGP part with 8 GB of GDDR7. Benchmark coverage is one-sided: the RTX 5070 Mobile has measured scores and nearest-rival comparisons, while the Arc B770 has no recorded benchmark entries.

FAQ

Q: What process do both GPUs use?

A: Both use TSMC 5 nm. The Intel chip is BMG-G31 with Xe2-HPG architecture; the NVIDIA chip is GB206 with Blackwell 2.0 architecture.

Q: How do memory capacities and bandwidths differ?

A: The Arc B770 has 16 GB of GDDR6 on a 256 bit bus, delivering 512.0 GB/s. The RTX 5070 Mobile has 8 GB of GDDR7 on a 128 bit bus, delivering 384.0 GB/s.

Q: Which GPU has higher FP32 and FP16 throughput?

A: The Arc B770 delivers 19.66 TFLOPS FP32 and 39.32 TFLOPS FP16 (2:1). The RTX 5070 Mobile delivers 13.13 TFLOPS FP32 and 13.13 TFLOPS FP16 (1:1).

Q: Where does the RTX 5070 Mobile rank among all GPUs?

A: It has an average benchmark score of 29928 and sits at the 75th percentile. It is 0.1% below the RTX 3070 Ti, 0.5% above the RTX 2080 Ti, 0.6% below the Radeon RX 6800, and 1.7% below the Radeon RX 6700.

Q: Are the graphics API feature sets the same?

A: Yes. Both report DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: What are the power delivery requirements?

A: The Arc B770 has a 225 W TDP, uses one 6-pin plus one 8-pin connector, and lists a 550 W suggested PSU. The RTX 5070 Mobile has a 50 W TDP and no power connectors.

Architecture Differences

The two GPUs are built for different integration points. The Arc B770 uses the BMG-G31 chip with Xe2-HPG architecture, generation Battlemage (Arc 7), and a 368 mm² die. Its transistor count is recorded as unknown. The RTX 5070 Mobile uses GB206 with Blackwell 2.0, generation GeForce 50 Mobile, and a 181 mm² die with 21,900 million transistors and a transistor density of 121.0M / mm². The Intel part is the larger chip, but the database does not provide a transistor count for density comparison.

Compute resources differ in composition. The Arc B770 has 4096 shading units, 256 TMUs, 128 ROPs, and 32 RT cores. The RTX 5070 Mobile has 4608 shading units, 144 TMUs, 48 ROPs, 36 RT cores, and 144 tensor cores. The NVIDIA part has more shaders and more RT cores, plus a tensor core array; the Intel part has more TMUs and more ROPs.

Memory architecture reinforces the split. The Arc B770 uses GDDR6 with 16 GB on a 256 bit bus, while the RTX 5070 Mobile uses GDDR7 with 8 GB on a 128 bit bus. The Intel part delivers 512.0 GB/s versus 384.0 GB/s for the NVIDIA part. The bus interface also differs: PCIe 4.0 x16 for the Arc B770, PCIe 5.0 x16 for the RTX 5070 Mobile.

The board and power envelopes are opposite. The Arc B770 is dual-slot, uses 1x 6-pin + 1x 8-pin, requires a 550 W PSU, and has a 225 W TDP. The RTX 5070 Mobile is IGP, has no power connectors, no suggested PSU, and a 50 W TDP. Display outputs also differ: the Arc B770 has 1x HDMI 2.1a and 3x DisplayPort 2.1, while the mobile part is portable device dependent.

The database lists the RTX 5070 Mobile as Active, with a release date of 2025-04-14 and predecessor GeForce 40 Mobile. The Arc B770 has no production status recorded, a release date of 2025-12-31, and predecessor Alchemist.

Where Each One Wins

With no shared benchmark entries, the wins are derived from the recorded specification fields.

The Arc B770 wins on memory capacity and bandwidth. It has 16 GB versus 8 GB, and 512.0 GB/s versus 384.0 GB/s. That gives it a clear margin for workloads that hold large data sets in VRAM. It also wins on fill rate and raw compute: 307.2 GPixel/s versus 68.40 GPixel/s, 614.4 GTexel/s versus 205.2 GTexel/s, 19.66 TFLOPS versus 13.13 TFLOPS FP32, and 39.32 TFLOPS versus 13.13 TFLOPS FP16. These numbers point to high-resolution rendering, texture-heavy scenes, and compute workloads that can use FP16 at 2:1.

The RTX 5070 Mobile wins on portability and power efficiency. Its 50 W TDP is much lower than the 225 W TDP, it needs no power connectors, and it is an IGP. It also has more shading units (4608 versus 4096), more RT cores (36 versus 32), and 144 tensor cores, while the Intel part lists no tensor cores. It uses GDDR7 and PCIe 5.0 x16, and is marked Active in the database. These features favor ray tracing and tensor-accelerated workloads, but with the trade-off of lower memory capacity and bandwidth.

Specification Differences

| Field | Intel Arc B770 | NVIDIA GeForce RTX 5070 Mobile |

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

| Series | Not recorded | GeForce 50-series |

| Chip | BMG-G31 | GB206 |

| Architecture | Xe2-HPG | Blackwell 2.0 |

| Generation | Battlemage (Arc 7) | GeForce 50 Mobile |

| Die size | 368 mm² | 181 mm² |

| Transistors | Unknown | 21,900 million |

| Transistor density | Not recorded | 121.0M / mm² |

| Base clock | 2100 MHz | 907 MHz |

| Boost clock | 2400 MHz | 1425 MHz |

| Memory clock | 2000 MHz, 16 Gbps effective | 1500 MHz, 24 Gbps effective |

| Memory | 16 GB GDDR6 | 8 GB GDDR7 |

| Memory bus | 256 bit | 128 bit |

| Memory bandwidth | 512.0 GB/s | 384.0 GB/s |

| Shading units | 4096 | 4608 |

| TMUs | 256 | 144 |

| ROPs | 128 | 48 |

| RT cores | 32 | 36 |

| Tensor cores | Not listed | 144 |

| Pixel rate | 307.2 GPixel/s | 68.40 GPixel/s |

| Texture rate | 614.4 GTexel/s | 205.2 GTexel/s |

| FP32 | 19.66 TFLOPS | 13.13 TFLOPS |

| FP16 | 39.32 TFLOPS (2:1) | 13.13 TFLOPS (1:1) |

| TDP | 225 W | 50 W |

| Slot width | Dual-slot | IGP |

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

| Suggested PSU | 550 W | Not specified |

| Bus interface | PCIe 4.0 x16 | PCIe 5.0 x16 |

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

| Production status | Not recorded | Active |

| Release date | 2025-12-31 | 2025-04-14 |

| Predecessor | Alchemist | GeForce 40 Mobile |

Head-to-Head Benchmarks

The database has no head-to-head benchmark entries for the Arc B770 and RTX 5070 Mobile. The Arc B770 has no recorded benchmark scores and no nearest-rival entries. It is listed at the 50th percentile among all GPUs, but no average benchmark score is attached.

The RTX 5070 Mobile, by contrast, has a full set of measured scores. Its average benchmark score is 29928, placing it at the 75th percentile among all GPUs. The nearest rivals show how tightly grouped it is: RTX 3070 Ti at 29945 (-0.1%), RTX 2080 Ti at 29783 (+0.5%), Radeon RX 6800 at 30095 (-0.6%), and Radeon RX 6700 at 30433 (-1.7%). The mobile part sits at parity with those desktop GPUs according to the database averages.

The individual benchmark scores for the RTX 5070 Mobile are: Geekbench OpenCL 122238, Geekbench Vulkan 116960, Passmark DirectX 10 129, Passmark DirectX 11 192, Passmark DirectX 12 93, Passmark DirectX 9 214, Passmark G2D 896, Passmark G3D 20355, and Passmark GPU Compute 8279. The DirectX 12 score of 93 is the lowest DirectX entry, while the DirectX 9 score of 214 is the highest. The G3D score of 20355 is the main gaming-oriented result, and the GPU compute score of 8279 is lower than the G3D score.

Because no Arc B770 scores exist, a direct head-to-head comparison cannot be quantified from recorded data. The only comparative statement available is the RTX 5070 Mobile's position against its nearest rivals.

The Verdict

Strictly from the recorded data, the Arc B770 is the stronger part for workloads that need large memory, high memory bandwidth, and high raw throughput. Its 16 GB GDDR6, 512.0 GB/s, 307.2 GPixel/s, 614.4 GTexel/s, and 19.66 TFLOPS FP32 all exceed the RTX 5070 Mobile's corresponding figures. That makes it the appropriate choice for scenarios where power draw is not the limiting factor and the workload fits within a dual-slot, 225 W board.

The RTX 5070 Mobile is the appropriate choice for power-constrained, mobile integration. Its 50 W TDP, IGP slot width, no power connectors, and portable-device-dependent display outputs define a very different product. It also has more shading units, more RT cores, and 144 tensor cores, plus GDDR7 and PCIe 5.0 x16. The database shows it performs at the level of desktop GPUs like the RTX 3070 Ti, RTX 2080 Ti, Radeon RX 6800, and Radeon RX 6700, based on an average score of 29928 and a 75th percentile rank.

The data does not support a single overall winner. The Arc B770 wins on memory and compute throughput; the RTX 5070 Mobile wins on efficiency, portability, and feature set. The lack of Arc B770 benchmark scores means the performance relationship in actual applications is not quantified in the database.