Intel Arc B370 vs NVIDIA GeForce RTX 5080 Mobile Comparison

Intel Arc B370 and NVIDIA GeForce RTX 5080 Mobile occupy entirely different tiers of the mobile graphics landscape. Benchmark data shows the RTX 5080 Mobile leads decisively in every recorded test, with the Arc B370 positioned far below in overall performance percentile. The gap is substantial, but the two parts serve fundamentally different roles within their respective product families.

Head-to-Head Benchmarks

The only directly comparable benchmark between both products is 3DMark Steel Nomad (DX12). In this test, the Intel Arc B370 scores 1184 points, while the NVIDIA GeForce RTX 5080 Mobile scores 4952 points. That represents a 76.1 percent deficit for the Intel part, meaning the RTX 5080 Mobile delivers roughly four times the raw performance in this workload. The result is unambiguous: in a head-to-head comparison, NVIDIA wins the single shared test by a wide margin.

Beyond that direct comparison, the database contains additional benchmark results for the RTX 5080 Mobile that have no equivalent entry for the Arc B370. These include Geekbench OpenCL (166986 points), Geekbench Vulkan (169754 points), and a suite of Passmark tests covering DirectX 9, 10, 11, 12, G2D, G3D, and GPU compute. The Arc B370 has no recorded scores for any of these tests, so no direct percentage comparison is possible. The RTX 5080 Mobile’s Passmark G3D score of 27711 and GPU compute score of 12134 further illustrate its compute-heavy design.

The average benchmark score in the database reinforces the gap. The Arc B370 has an average score of 1184, while the RTX 5080 Mobile averages 38349. That is a 32-fold difference in aggregate performance across all recorded tests. The Arc B370 sits at the 5th percentile of all GPUs, while the RTX 5080 Mobile sits at the 81st percentile. In practical terms, the RTX 5080 Mobile outperforms the vast majority of the database’s tracked graphics hardware, while the Arc B370 trails nearly all of it.

Where Each One Wins

Looking strictly at the data, the RTX 5080 Mobile wins every benchmark category in which both products have entries, and it also holds the only wins in categories where the Arc B370 has no recorded results. The single head-to-head test, 3DMark Steel Nomad DX12, goes to NVIDIA. The RTX 5080 Mobile also leads in all of its exclusive tests, including Geekbench OpenCL and Vulkan, and every Passmark DX9 through DX12 test, plus G2D, G3D, and compute.

The Arc B370 does not win any benchmark in the database. However, its positioning suggests a different use case. With a 25 W TDP, an integrated form factor, and system-shared memory, the Arc B370 is designed for low-power, portable devices where discrete graphics are not an option. Its 5th percentile ranking places it among entry-level mobile GPUs, comparable to older parts like the ATI Mobility Radeon HD 5570 (which scores 1186, a 0.2 percent difference) or the AMD Radeon HD 7650M (1192, a 0.7 percent difference). These are not modern competitors; they are legacy parts, which indicates the Arc B370 targets basic graphics workloads rather than high-end gaming or compute.

The RTX 5080 Mobile, by contrast, uses a 16 GB GDDR7 memory pool, a 256-bit bus, and 896.0 GB/s of bandwidth. Its nearest rivals in the database include the NVIDIA GeForce RTX 4080 Mobile (38135 average, 0.6 percent ahead of the MX570 but 0.6 percent behind the 5080 Mobile), the NVIDIA GeForce MX570 (38299, 0.1 percent behind), and the AMD Radeon Pro 580X (38706, 0.9 percent behind). These are all modern, high-performance parts, and the RTX 5080 Mobile sits among them comfortably. That makes it a strong candidate for demanding gaming, content creation, and compute workloads, not basic display output.

Architecture Differences

The two GPUs share very little in terms of underlying design. Intel’s Arc B370 uses the Panther Lake chip built on the Xe3-LPG architecture, fabricated on a 3 nm process at Intel’s own foundry. NVIDIA’s RTX 5080 Mobile uses the GB203 chip with Blackwell 2.0 architecture, built on a 5 nm process at TSMC. The process node difference is notable: Intel uses a smaller 3 nm node, while NVIDIA uses a larger 5 nm node, though the RTX 5080 Mobile still achieves far higher performance.

The RTX 5080 Mobile has 45,600 million transistors on a 378 mm² die, with a transistor density of 120.6 million per square millimeter. The Arc B370 lists its transistor count and die size as unknown, so no direct comparison is possible for those metrics. The RTX 5080 Mobile’s large die and high transistor count support its 7680 shading units, 240 texture mapping units, 96 ROPs, 60 ray tracing cores, and 240 tensor cores. The Arc B370 has 1280 shading units, 40 TMUs, 20 ROPs, and 10 ray tracing cores, with no tensor core count listed.

Clock speeds also differ substantially. The Arc B370 has a base clock of 300 MHz and a boost clock of 2400 MHz. The RTX 5080 Mobile has a base clock of 975 MHz and a boost clock of 1500 MHz. Despite the lower boost clock, the RTX 5080 Mobile’s much larger shader count delivers far higher throughput. Pixel rate for the Arc B370 is 48.00 GPixel/s and texture rate is 96.00 GTexel/s, while the RTX 5080 Mobile reaches 144.0 GPixel/s and 360.0 GTexel/s, respectively. FP32 compute is 6.144 TFLOPS for Intel and 23.04 TFLOPS for NVIDIA. FP16 is 12.29 TFLOPS for the Arc B370 (with a 2:1 ratio) and 23.04 TFLOPS for the RTX 5080 Mobile (1:1 ratio).

Memory architecture is a fundamental differentiator. The Arc B370 uses system-shared memory with no dedicated VRAM, no fixed bus width, and bandwidth described as system dependent. The RTX 5080 Mobile has 16 GB of GDDR7 memory on a 256-bit bus with 896.0 GB/s of dedicated bandwidth. This alone explains much of the performance gap in memory-intensive workloads.

Both GPUs support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API compatibility is identical. Both are integrated-style parts with no power connectors and portable-device-dependent display outputs. Power consumption differs sharply: the Arc B370 has a TDP of 25 W, while the RTX 5080 Mobile has a TDP of 80 W. The RTX 5080 Mobile also uses a PCIe 5.0 x16 bus interface, while the Arc B370 uses an integrated (IGP) interface.

The Verdict

The data points to a clear split. The NVIDIA GeForce RTX 5080 Mobile is the superior performer in every measurable way. It wins the only direct benchmark by 76.1 percent, holds a 32-fold higher average benchmark score, sits at the 81st percentile versus the 5th percentile, and offers 16 GB of dedicated GDDR7 memory, 7680 shading units, and 23.04 TFLOPS of FP32 compute. Anyone seeking high-end gaming, ray tracing, or compute performance should choose the RTX 5080 Mobile based strictly on these numbers.

The Intel Arc B370, however, has its own role. With a 25 W TDP, integrated form factor, and system-shared memory, it is built for ultra-portable devices where power efficiency and simplicity matter more than raw speed. Its 1280 shading units and 6.144 TFLOPS of FP32 compute are adequate for basic graphics tasks, and its 3 nm process node suggests energy efficiency is a priority. It is not a competitor to the RTX 5080 Mobile, and the benchmark data does not suggest otherwise. The Arc B370 is for lightweight, power-constrained systems; the RTX 5080 Mobile is for performance-first laptops.

For users requiring the highest frame rates, the RTX 5080 Mobile is the only rational choice. For users who need minimal power draw and integrated simplicity, the Arc B370 fits that specific niche. The data does not support any other conclusion.

FAQ

Q: How much faster is the NVIDIA GeForce RTX 5080 Mobile than the Intel Arc B370 in 3DMark Steel Nomad DX12?

A: The RTX 5080 Mobile scores 4952 points compared to 1184 for the Arc B370, a difference of 76.1 percent in favor of NVIDIA.

Q: What is the memory configuration of each GPU?

A: The RTX 5080 Mobile has 16 GB of GDDR7 memory on a 256-bit bus with 896.0 GB/s bandwidth. The Arc B370 uses system-shared memory with no dedicated VRAM, and its bandwidth is system dependent.

Q: Which GPU has a higher boost clock?

A: The Intel Arc B370 has a boost clock of 2400 MHz, while the NVIDIA GeForce RTX 5080 Mobile has a boost clock of 1500 MHz. Despite the lower clock, the RTX 5080 Mobile achieves far higher performance due to its larger shader count.

Q: What are the power consumption figures?

A: The Intel Arc B370 has a TDP of 25 W, and the NVIDIA GeForce RTX 5080 Mobile has a TDP of 80 W. Both are integrated-style parts with no power connectors.

Q: How do the two GPUs compare in terms of compute throughput?

A: The RTX 5080 Mobile delivers 23.04 TFLOPS of FP32 compute, while the Arc B370 delivers 6.144 TFLOPS. The RTX 5080 Mobile also has 7680 shading units versus 1280 for the Arc B370.

Q: What is the overall performance percentile ranking for each?

A: The Intel Arc B370 ranks at the 5th percentile of all GPUs in the database, while the NVIDIA GeForce RTX 5080 Mobile ranks at the 81st percentile.

Specification Differences

| Specification | Intel Arc B370 | NVIDIA GeForce RTX 5080 Mobile |

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

| Architecture | Xe3-LPG | Blackwell 2.0 |

| Process Node | 3 nm | 5 nm |

| Foundry | Intel | TSMC |

| Transistors | Unknown | 45,600 million |

| Die Size | Unknown | 378 mm² |

| Transistor Density | Unknown | 120.6M / mm² |

| Base Clock | 300 MHz | 975 MHz |

| Boost Clock | 2400 MHz | 1500 MHz |

| Memory Size | System Shared | 16 GB |

| Memory Type | System Shared | GDDR7 |

| Memory Bus Width | System Shared | 256 bit |

| Memory Bandwidth | System Dependent | 896.0 GB/s |

| Shading Units | 1280 | 7680 |

| TMUs | 40 | 240 |

| ROPs | 20 | 96 |

| Ray Tracing Cores | 10 | 60 |

| Tensor Cores | Unknown | 240 |

| Pixel Rate | 48.00 GPixel/s | 144.0 GPixel/s |

| Texture Rate | 96.00 GTexel/s | 360.0 GTexel/s |

| FP32 Performance | 6.144 TFLOPS | 23.04 TFLOPS |

| FP16 Performance | 12.29 TFLOPS (2:1) | 23.04 TFLOPS (1:1) |

| TDP | 25 W | 80 W |

| Bus Interface | IGP | PCIe 5.0 x16 |

| Release Date | 2026-01-26 | 2025-04-01 |

| Predecessor | Unknown | GeForce 40 Mobile |

| Average Benchmark Score | 1184 | 38349 |

| Percentile vs All GPUs | 5 | 81 |

| 3DMark Steel Nomad DX12 | 1184 | 4952 |