Intel Arc B370 vs NVIDIA Rubin GPU Comparison

Head-to-Head Benchmarks

The recorded data contains only one direct benchmark score for the Intel Arc B370. The NVIDIA Rubin GPU has no benchmark scores listed in the database, which limits direct numerical comparison. The Intel Arc B370 scores 1184 points in 3DMark Steel Nomad DX12. This places it in the 5th percentile of all GPUs in the database, indicating entry-level performance. Its nearest rivals in the database are all older discrete graphics parts. The ATI Mobility Radeon HD 5570 scores 1186, putting the Arc B370 0.2% behind. The ATI Radeon HD 5770 scores 1190, a 0.5% gap. The AMD Radeon HD 7650M scores 1192, a 0.7% deficit. The only GPU the Arc B370 leads is the AMD FirePro M2000, which scores 1168, giving the Intel part a 1.4% advantage. These deltas are all within a narrow 2.1 percentage point band, showing that the Arc B370 clusters tightly with a generation of GPUs from over a decade ago in this specific workload.

The NVIDIA Rubin GPU holds a 50th percentile ranking across all GPUs in the database, though its average benchmark score is recorded as zero due to the absence of test entries. Without a Steel Nomad result, no direct score-to-score comparison against the Arc B370 can be computed from the available data. The head-to-head benchmark table is empty, and the win count stands at zero for both parts. What the data does show is the extreme disparity in their positioning: the Arc B370 sits at the 5th percentile, while the Rubin GPU sits at the median. The lack of a Rubin benchmark result means the percentile ranking likely reflects its classification rather than measured performance, but the database treats it as the stronger part by that metric.

Architecture Differences

The Intel Arc B370 is built on the Panther Lake chip using the Xe3-LPG architecture, part of the Arc Graphics-M (Panther Lake) generation. It is fabricated on a 3 nm process at Intel's own foundry. The NVIDIA Rubin GPU uses the GR100 chip with the Rubin architecture, belonging to the Server Rubin (Rxx) generation. It also uses a 3 nm process, but at TSMC. Both parts share the same node size, but the similarity ends there.

The transistor counts are dramatically different. The Rubin GPU packs 336,000 million transistors on a 1456 mm² die, giving a transistor density of 230.8M per mm². The Arc B370's transistor count and die size are listed as unknown, so no density figure can be derived. The Rubin GPU is a monolithic server-class part with a massive physical footprint, while the Arc B370 is an integrated graphics processor with an IGP slot width and no power connectors.

Clock behavior differs substantially. The Arc B370 runs at a 300 MHz base and 2400 MHz boost. The Rubin GPU has a 700 MHz base and 2267 MHz boost. The Intel part has a higher boost clock, but the NVIDIA part has a higher base clock. Memory configurations are entirely different classes. The Arc B370 uses system-shared memory, with a system-shared bus width and bandwidth described as system dependent. The Rubin GPU uses 288 GB of HBM4 memory across a 16384-bit bus, delivering 22.1 TB/s of bandwidth and running at 2695 MHz (10.8 Gbps effective).

Compute resources show the scale gap. The Arc B370 has 1280 shading units, 40 texture mapping units, 20 ROPs, and 10 ray tracing cores. It has no tensor cores listed. The Rubin GPU has 28672 shading units, 896 TMUs, 24 ROPs, and 896 tensor cores. The ray tracing core count for Rubin is not listed. The pixel rate favors Rubin slightly at 54.41 GPixel/s versus 48.00 GPixel/s for the Arc B370. The texture rate difference is enormous: 2,031.2 GTexel/s for Rubin versus 96.00 GTexel/s for the Intel part. Floating point performance follows the same pattern. The Arc B370 delivers 6.144 TFLOPS FP32 and 12.29 TFLOPS FP16 (2:1). The Rubin GPU delivers 130.0 TFLOPS FP32 and 260.0 TFLOPS FP16 (2:1).

API support diverges completely. The Arc B370 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The Rubin GPU lists N/A for DirectX, OpenGL, and Vulkan, consistent with a server accelerator that has no display outputs. The Intel part's display outputs are portable device dependent, while the Rubin GPU has no outputs at all. Power requirements differ by orders of magnitude: the Arc B370 is rated at 25 W TDP, while the Rubin GPU is rated at 2300 W TDP with a suggested PSU of 2700 W. The Rubin GPU is an SXM module, while the Arc B370 is an IGP. The bus interface for Rubin is PCIe 6.0 x16; the Arc B370 uses IGP.

FAQ

Q: Which GPU has a higher boost clock?

A: The Intel Arc B370 boosts to 2400 MHz, while the NVIDIA Rubin GPU boosts to 2267 MHz. The Intel part is 133 MHz higher at boost.

Q: Does the NVIDIA Rubin GPU support DirectX?

A: No. The database lists DirectX as N/A for the Rubin GPU. The Intel Arc B370 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: How much memory does each GPU use?

A: The Arc B370 uses system-shared memory with system-dependent bandwidth. The Rubin GPU uses 288 GB of HBM4 memory with a 16384-bit bus and 22.1 TB/s bandwidth.

Q: What are the FP32 performance figures?

A: The Arc B370 delivers 6.144 TFLOPS FP32. The Rubin GPU delivers 130.0 TFLOPS FP32, which is roughly 21 times higher, though the exact ratio is not stated in the database.

Q: Where does each GPU rank among all GPUs in the database?

A: The Arc B370 sits at the 5th percentile. The Rubin GPU sits at the 50th percentile.

Q: What is the power draw of each part?

A: The Arc B370 has a 25 W TDP. The Rubin GPU has a 2300 W TDP and a suggested PSU of 2700 W.

Specification Differences

| Specification | Intel Arc B370 | NVIDIA Rubin GPU |

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

| Chip | Panther Lake | GR100 |

| Architecture | Xe3-LPG | Rubin |

| Generation | Arc Graphics-M (Panther Lake) | Server Rubin (Rxx) |

| Process node | 3 nm (Intel foundry) | 3 nm (TSMC foundry) |

| Transistors | Unknown | 336,000 million |

| Die size | Unknown | 1456 mm² |

| Transistor density | Not listed | 230.8M / mm² |

| Base clock | 300 MHz | 700 MHz |

| Boost clock | 2400 MHz | 2267 MHz |

| Memory clock | System Shared | 2695 MHz (10.8 Gbps effective) |

| Memory size | System Shared | 288 GB |

| Memory type | System Shared | HBM4 |

| Memory bus width | System Shared | 16384 bit |

| Memory bandwidth | System Dependent | 22.1 TB/s |

| Shading units | 1280 | 28672 |

| TMUs | 40 | 896 |

| ROPs | 20 | 24 |

| RT cores | 10 | Not listed |

| Tensor cores | Not listed | 896 |

| Pixel rate | 48.00 GPixel/s | 54.41 GPixel/s |

| Texture rate | 96.00 GTexel/s | 2,031.2 GTexel/s |

| FP32 | 6.144 TFLOPS | 130.0 TFLOPS |

| FP16 | 12.29 TFLOPS (2:1) | 260.0 TFLOPS (2:1) |

| TDP | 25 W | 2300 W |

| Slot width | IGP | SXM Module |

| Power connectors | None | Not listed |

| Suggested PSU | Not listed | 2700 W |

| Bus interface | IGP | PCIe 6.0 x16 |

| Display outputs | Portable Device Dependent | No outputs |

| DirectX | 12 Ultimate (12_2) | N/A |

| OpenGL | 4.6 | N/A |

| Vulkan | 1.4 | N/A |

| Release date | 2026-01-26 | 2025-12-31 |

| Predecessor | Not listed | Server Blackwell |

The Verdict

The recorded data describes two products with no meaningful overlap in purpose. The Intel Arc B370 is an integrated GPU rated at 25 W, built for portable devices, with display output capabilities and full consumer graphics API support. Its single benchmark score of 1184 in 3DMark Steel Nomad DX12 places it at the 5th percentile, directly alongside ATI Radeon HD 5770-class hardware from earlier generations. The delta values against its nearest rivals are all under 1.5%, confirming that its performance profile is tightly clustered with those legacy parts. Anyone selecting the Arc B370 is choosing a low-power integrated solution with a boost clock of 2400 MHz and DirectX 12 Ultimate support.

The NVIDIA Rubin GPU is a server accelerator. It has no display outputs, no consumer API support, and a 2300 W TDP. Its specifications point to compute workloads: 28672 shading units, 896 tensor cores, 288 GB of HBM4 memory, and 130.0 TFLOPS FP32. The 22.1 TB/s memory bandwidth and PCIe 6.0 x16 interface reinforce that positioning. The database records no benchmark scores for it, so its 50th percentile ranking cannot be verified against measured tests, but its raw specification sheet places it in a different performance class entirely. Its predecessor is listed as Server Blackwell, confirming a data center lineage.

The data does not support a direct head-to-head recommendation. The Arc B370 is the only one of the two with a measured benchmark score, and it is the only one with any graphics API support or display capability. The Rubin GPU is the only one with a benchmark percentile above the bottom quartile, and its compute resources dwarf the Intel part in every recorded category. A system builder targeting portable graphics with low power draw would select the Arc B370. A data center operator requiring HBM4 memory, tensor cores, and high FP32 throughput would select the Rubin GPU. The two parts never compete for the same socket, the same power budget, or the same software stack. The database draws the line clearly: one is an integrated GPU at 25 W, the other is an SXM module at 2300 W.