Intel Arc B770 vs NVIDIA GeForce RTX 5070 Mobile 12 GB Comparison

Head-to-Head Benchmarks

The database contains no direct benchmark scores for either the Intel Arc B770 or the NVIDIA GeForce RTX 5070 Mobile 12 GB. Both cards hold identical percentile rankings at 50th overall and share an average benchmark score of 0. Consequently, the head-to-head comparison must be built entirely from the recorded hardware specifications rather than measured performance deltas. The following analysis uses those specifications to project relative strengths.

The Intel Arc B770 delivers a peak FP32 throughput of 19.66 TFLOPS against 13.13 TFLOPS for the RTX 5070 Mobile. That is approximately 50% higher raw compute output. The Arc B770 also reaches 39.32 TFLOPS in FP16 with a 2:1 ratio, while the RTX 5070 Mobile is limited to 13.13 TFLOPS in FP16 with a 1:1 ratio. The NVIDIA part cannot accelerate FP16 at double rate, so any workload relying on half-precision arithmetic will favor the Intel card by a wide margin.

Rasterization throughput follows the same pattern. The Arc B770 produces 307.2 GPixel/s and 614.4 GTexel/s, versus 68.40 GPixel/s and 205.2 GTexel/s for the RTX 5070 Mobile. The pixel rate gap is particularly large, roughly 4.5 times in favor of Intel, driven by 128 ROPs against 48 ROPs. Texture rate favors Intel by a factor of about 3.0, based on 256 TMUs versus 144 TMUs.

The NVIDIA card counters with a higher memory bandwidth of 576.0 GB/s, compared to 512.0 GB/s for Intel. This advantage stems from GDDR7 memory operating at 24 Gbps effective on a 192-bit bus, while the Arc B770 uses GDDR6 at 16 Gbps effective on a 256-bit bus. The RTX 5070 Mobile also carries more shading units at 4608 versus 4096, and more ray tracing cores at 36 versus 32. It additionally includes 144 tensor cores; the Intel part lists no tensor core count at all.

Clock speeds are sharply different. The Arc B770 runs at a 2100 MHz base and 2400 MHz boost, while the RTX 5070 Mobile runs at 907 MHz base and 1425 MHz boost. The Intel card's higher clocks help explain its substantial throughput advantages, but the NVIDIA part's far lower power envelope changes the context of every comparison.

Architecture Differences

The two GPUs come from different architectural generations. Intel uses Xe2-HPG, built on the Battlemage (Arc 7) generation, with the BMG-G31 chip. NVIDIA uses Blackwell 2.0, belonging to the GeForce 50 Mobile series, with the GB206 chip. Both are fabricated on a 5 nm process at TSMC, so the manufacturing node is identical.

Die size and transistor counts diverge significantly. The Arc B770 measures 368 mm², while the RTX 5070 Mobile measures 181 mm². The database records 21,900 million transistors for the NVIDIA chip, giving a transistor density of 121.0M per mm². The Intel transistor count is listed as unknown, so no density figure can be computed. The Intel die is approximately twice the physical size, which aligns with its larger memory bus and higher ROP count.

Memory subsystems differ in type and width. The Arc B770 uses 16 GB of GDDR6 on a 256-bit bus. The RTX 5070 Mobile uses 12 GB of GDDR7 on a 192-bit bus. Despite the narrower bus, the newer GDDR7 standard at 24 Gbps effective gives NVIDIA the bandwidth edge. The capacity advantage belongs to Intel by 4 GB.

The compute configuration is structured differently. Intel packs 4096 shading units, 256 TMUs, and 128 ROPs. NVIDIA packs 4608 shading units, 144 TMUs, and 48 ROPs. NVIDIA has more shaders and more RT cores (36 vs 32), plus tensor cores that Intel does not list. Intel has far more texture units and raster output units.

Power delivery and physical design are opposites. The Arc B770 is a dual-slot card requiring 1x 6-pin and 1x 8-pin power connectors, with a TDP of 225 W and a suggested PSU of 550 W. The RTX 5070 Mobile is an IGP (integrated graphics processor) with no power connectors and a TDP of 50 W. That is a 175 W difference in thermal design power. The NVIDIA part is designed for portable devices, while the Intel part is a discrete add-in board.

The bus interface also differs. Intel uses PCIe 4.0 x16, while NVIDIA uses PCIe 5.0 x16. Display outputs are specified for Intel as 1x HDMI 2.1a and 3x DisplayPort 2.1. The NVIDIA card's outputs are listed as portable device dependent, meaning they vary by laptop implementation. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Where Each One Wins

The Intel Arc B770 wins in raw compute throughput, fill rates, memory capacity, and fixed desktop connectivity. Its 19.66 TFLOPS FP32, 307.2 GPixel/s, and 614.4 GTexel/s place it far ahead in traditional rasterization workloads. The 16 GB frame buffer provides more headroom for large textures and high-resolution rendering. The dual-slot cooler and 225 W TDP indicate a part designed for sustained desktop performance, and the fixed display outputs (HDMI 2.1a plus three DisplayPort 2.1) support multi-monitor desktop setups directly.

The NVIDIA GeForce RTX 5070 Mobile 12 GB wins in memory bandwidth, shader count, ray tracing core count, tensor core availability, power efficiency, and interconnect speed. Its 576.0 GB/s bandwidth exceeds Intel by 64 GB/s despite a narrower 192-bit bus. The 4608 shading units and 36 RT cores suggest stronger geometry and ray tracing throughput per clock. The 144 tensor cores enable AI-accelerated features that Intel cannot match with a listed count of none. The 50 W TDP makes it suitable for thin and light laptops. The PCIe 5.0 x16 interface doubles the link generation versus Intel's PCIe 4.0 x16.

The release timeline also separates them. The Intel card carries a release date of 2025-12-31, while the NVIDIA card is dated 2026-05-31. The RTX 5070 Mobile is a newer product by roughly five months. Production status for Intel is not listed, while NVIDIA is marked as active.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The Intel Arc B770 delivers 19.66 TFLOPS, which is about 50% higher than the RTX 5070 Mobile's 13.13 TFLOPS.

Q: How do the memory systems compare?

A: The Arc B770 uses 16 GB of GDDR6 on a 256-bit bus for 512.0 GB/s bandwidth. The RTX 5070 Mobile uses 12 GB of GDDR7 on a 192-bit bus for 576.0 GB/s bandwidth. NVIDIA has higher bandwidth; Intel has more capacity.

Q: What is the power consumption difference?

A: The Arc B770 has a TDP of 225 W and requires dual power connectors. The RTX 5070 Mobile has a TDP of 50 W and uses no power connectors. The difference is 175 W.

Q: Does either card support ray tracing?

A: Both cards support it. The Arc B770 has 32 RT cores, and the RTX 5070 Mobile has 36 RT cores.

Q: Which GPU has more shading units?

A: The RTX 5070 Mobile has 4608 shading units versus 4096 on the Arc B770, a difference of 512 units in NVIDIA's favor.

Q: Are both GPUs built on the same manufacturing process?

A: Yes, both are fabricated on a 5 nm process at TSMC. The Intel die is 368 mm², while the NVIDIA die is 181 mm².

Specification Differences

| Specification | Intel Arc B770 | NVIDIA GeForce RTX 5070 Mobile 12 GB |

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

| Chip | BMG-G31 | GB206 |

| Architecture | Xe2-HPG | Blackwell 2.0 |

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

| Transistors | unknown | 21,900 million |

| Die size | 368 mm² | 181 mm² |

| Transistor density | null | 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 size | 16 GB | 12 GB |

| Memory type | GDDR6 | GDDR7 |

| Memory bus width | 256 bit | 192 bit |

| Memory bandwidth | 512.0 GB/s | 576.0 GB/s |

| Shading units | 4096 | 4608 |

| TMUs | 256 | 144 |

| ROPs | 128 | 48 |

| RT cores | 32 | 36 |

| Tensor cores | null | 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 | null |

| 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 | null | Active |

| Release date | 2025-12-31 | 2026-05-31 |

| Predecessor | Alchemist | GeForce 40 Mobile |

The Verdict

The data describes two GPUs engineered for different environments. The Intel Arc B770 is a desktop add-in card with a 225 W TDP, dual-slot cooling, and external power connectors. Its 19.66 TFLOPS FP32, 307.2 GPixel/s, and 614.4 GTexel/s make it the stronger choice for compute-heavy and rasterization-heavy desktop workloads. The 16 GB GDDR6 frame buffer offers more capacity for high-resolution assets. Buyers with a 550 W PSU and PCIe 4.0 motherboard can install it directly, and the fixed display outputs support multiple monitors without adapter complexity.

The NVIDIA GeForce RTX 5070 Mobile 12 GB is an integrated laptop GPU with a 50 W TDP. It cannot be installed in a desktop. Its 576.0 GB/s bandwidth, 4608 shading units, 36 RT cores, and 144 tensor cores give it advantages in bandwidth-sensitive tasks, ray tracing, and AI-accelerated features. The PCIe 5.0 x16 interface and newer release date indicate a more recent design. The 12 GB GDDR7 capacity is smaller than Intel's, but the memory technology is faster per pin.

Users who need maximum raw throughput, fill rates, and memory capacity in a desktop system should select the Arc B770. Users who need ray tracing, tensor core acceleration, and high bandwidth within a laptop power envelope should select the RTX 5070 Mobile. The 175 W TDP gap defines the fundamental trade-off: desktop performance capacity versus mobile integration.