Intel Arc B580 vs NVIDIA GeForce RTX 5070 Mobile 12 GB Comparison

Where Each One Wins

The benchmark data presents an unusual comparison. The Intel Arc B580 has a complete set of recorded test scores, while the NVIDIA GeForce RTX 5070 Mobile 12 GB has no benchmark entries in the database at this time. This means the Arc B580 is the only one of the two with measurable wins across all test categories.

The Arc B580 shows its strongest results in synthetic graphics workloads. In 3DMark Steel Nomad DX12, it records a score of 3068. The Geekbench Vulkan test shows a score of 109672, while the OpenCL test registers 92821. These are the highest individual scores in its benchmark profile. The PassMark G3D suite returns a score of 15748, and the PassMark GPU Compute test produces 7729. The PassMark DirectX 9 test shows 183, DirectX 11 shows 128, and both DirectX 10 and DirectX 12 show 76. The PassMark G2D test completes the set with 709.

The RTX 5070 Mobile has no recorded scores for any of these tests. The database lists an average benchmark score of 0 for it, while the Arc B580 has an average of 23021. The Arc B580 sits at the 68th percentile among all GPUs, while the RTX 5070 Mobile sits at the 50th percentile. Without any benchmark results for the NVIDIA part, the data cannot confirm any scenario where the RTX 5070 Mobile wins a direct comparison.

The nearest rivals for the Arc B580 provide context. The AMD Radeon RX 580 2048SP has an average score of 23061, which is 0.2% higher. The NVIDIA GeForce RTX 2080 averages 22895, which is 0.6% lower. The NVIDIA GeForce RTX 3080 averages 23172, which is 0.7% higher. The NVIDIA P106-100 averages 23249, which is 1% higher. These figures show the Arc B580 landing within a narrow band of older and newer discrete GPUs. The RTX 5070 Mobile has no nearest rivals listed, so no comparable positioning exists for it.

Architecture Differences

The two GPUs come from different manufacturers and use different architectures. The Intel Arc B580 uses the Xe2-HPG architecture with the BMG-G21 chip, part of the Battlemage generation under the Arc 5 series. The NVIDIA GeForce RTX 5070 Mobile uses the Blackwell 2.0 architecture with the GB206 chip, part of the GeForce 50 Mobile series.

Both are built on a 5 nm process at TSMC. The transistor counts differ. The Arc B580 has 19,600 million transistors on a die size of 272 mm², giving a transistor density of 72.1M per mm². The RTX 5070 Mobile has 21,900 million transistors on a smaller die of 181 mm², resulting in a higher density of 121.0M per mm². The NVIDIA chip packs more transistors into less silicon, which reflects a denser design.

The memory subsystems use different memory types. The Arc B580 uses GDDR6 with a 192-bit bus and 456.0 GB/s of bandwidth. The RTX 5070 Mobile uses GDDR7 with the same 192-bit bus but a higher 576.0 GB/s of bandwidth. Both have 12 GB of memory, but the newer GDDR7 standard gives the NVIDIA part a bandwidth advantage. The memory clocks reflect this: the Arc B580 runs at 2375 MHz with 19 Gbps effective, while the RTX 5070 Mobile runs at 1500 MHz with 24 Gbps effective.

The compute configurations diverge significantly. The Arc B580 has 2560 shading units, 160 texture mapping units, and 80 render output units. It includes 20 ray tracing cores and no tensor cores listed. The RTX 5070 Mobile has 4608 shading units, 144 texture mapping units, and 48 render output units. It includes 36 ray tracing cores and 144 tensor cores. The NVIDIA part has nearly double the shading units and almost double the ray tracing cores, plus a dedicated tensor core array.

Clock speeds tell a different story. The Arc B580 has a base clock of 2670 MHz and a boost clock of 2670 MHz, a flat frequency curve. The RTX 5070 Mobile has a base clock of 907 MHz and a boost clock of 1425 MHz, substantially lower frequencies. These lower clocks are consistent with a mobile part designed around power efficiency. The Arc B580 carries a TDP of 190 W with a dual-slot cooler and a single 8-pin power connector, while the RTX 5070 Mobile has a TDP of 50 W with an IGP slot width and no power connectors, designed for laptops.

The interface standards differ as well. The Arc B580 uses PCIe 4.0 x8, while the RTX 5070 Mobile uses PCIe 5.0 x16. The Intel card offers 1x HDMI 2.1a and 3x DisplayPort 2.1 outputs, while the NVIDIA mobile part has display outputs described as portable device dependent. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

FAQ

Q: Which GPU has a higher average benchmark score?

A: The Intel Arc B580 has an average benchmark score of 23021, while the NVIDIA GeForce RTX 5070 Mobile has an average of 0 because no benchmark results are recorded for it.

Q: What is the memory bandwidth difference between the two?

A: The Arc B580 provides 456.0 GB/s of bandwidth with GDDR6 memory. The RTX 5070 Mobile provides 576.0 GB/s of bandwidth with GDDR7 memory. Both use a 192-bit bus and 12 GB capacity.

Q: How do the transistor densities compare?

A: The Arc B580 has a transistor density of 72.1M per mm² across a 272 mm² die. The RTX 5070 Mobile has a density of 121.0M per mm² across a 181 mm² die. The NVIDIA chip is denser despite being built on the same 5 nm process.

Q: Which GPU has more shading units?

A: The RTX 5070 Mobile has 4608 shading units, while the Arc B580 has 2560. The NVIDIA part also has 36 ray tracing cores versus 20 for the Intel card, and 144 tensor cores versus none listed for the Arc.

Q: What are the power requirements?

A: The Arc B580 has a TDP of 190 W, uses a dual-slot cooler, requires a 1x 8-pin power connector, and suggests a 450 W power supply. The RTX 5070 Mobile has a TDP of 50 W, uses an IGP slot width, and has no power connectors.

Q: Do both GPUs support the same APIs?

A: Yes, both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The interface differs, with the Arc B580 using PCIe 4.0 x8 and the RTX 5070 Mobile using PCIe 5.0 x16.

Specification Differences

The two GPUs differ across almost every major specification category. The process node is the same at 5 nm TSMC, but nearly everything else diverges.

The chip identifiers differ. Intel uses the BMG-G21 chip with the Xe2-HPG architecture in the Battlemage generation. NVIDIA uses the GB206 chip with the Blackwell 2.0 architecture in the GeForce 50 Mobile generation. The transistor counts differ by 2,300 million, with the RTX 5070 Mobile at 21,900 million versus 19,600 million for the Arc B580. The die sizes differ by 91 mm², with the Intel chip larger at 272 mm² versus 181 mm². Transistor density favors NVIDIA at 121.0M per mm² versus 72.1M per mm².

Clock speeds differ sharply. The Arc B580 has a base and boost clock of 2670 MHz. The RTX 5070 Mobile has a base clock of 907 MHz and a boost clock of 1425 MHz. Memory clocks differ as well: 2375 MHz with 19 Gbps effective for the Intel card, 1500 MHz with 24 Gbps effective for the NVIDIA part.

Memory type and bandwidth differ. The Arc B580 uses GDDR6 with 456.0 GB/s. The RTX 5070 Mobile uses GDDR7 with 576.0 GB/s. Both use a 192-bit bus and 12 GB capacity.

The compute unit counts differ. The Arc B580 has 2560 shading units, 160 TMUs, 80 ROPs, and 20 RT cores. The RTX 5070 Mobile has 4608 shading units, 144 TMUs, 48 ROPs, 36 RT cores, and 144 tensor cores. The Intel part has no tensor cores listed.

Pixel and texture rates differ. The Arc B580 has a pixel rate of 213.6 GPixel/s and a texture rate of 427.2 GTexel/s. The RTX 5070 Mobile has a pixel rate of 68.40 GPixel/s and a texture rate of 205.2 GTexel/s. The FP32 throughput is similar, with 13.67 TFLOPS for the Arc B580 and 13.13 TFLOPS for the RTX 5070 Mobile. FP16 performance differs in ratio: the Intel part delivers 27.34 TFLOPS at a 2:1 rate, while the NVIDIA part delivers 13.13 TFLOPS at a 1:1 rate.

Power and physical characteristics differ. The Arc B580 has a TDP of 190 W with a dual-slot width and a 1x 8-pin power connector. The RTX 5070 Mobile has a TDP of 50 W with an IGP width and no power connectors. The Intel card has a suggested PSU of 450 W, while the NVIDIA part has none listed. The Arc B580 measures 272 mm by 115 mm by 45 mm, while the RTX 5070 Mobile has no dimensions listed. The bus interface differs: PCIe 4.0 x8 for Intel, PCIe 5.0 x16 for NVIDIA. Display outputs differ: 1x HDMI 2.1a and 3x DisplayPort 2.1 for the Arc B580, portable device dependent for the RTX 5070 Mobile.

Release dates differ. The Arc B580 was released on 2024-12-12. The RTX 5070 Mobile has a release date of 2026-05-31. The Intel card has a launch MSRP of 249 USD, while the NVIDIA part has no launch MSRP listed. The Intel card lists Alchemist as its predecessor, while the NVIDIA part lists GeForce 40 Mobile.

Head-to-Head Benchmarks

The head-to-head benchmark data contains no entries. This means there are no direct comparison scores between the Intel Arc B580 and the NVIDIA GeForce RTX 5070 Mobile. The wins count for each is 0. The database records no test where both GPUs were measured side by side.

The only available benchmark data belongs to the Arc B580. Its highest score comes from Geekbench Vulkan at 109672, followed by Geekbench OpenCL at 92821. The PassMark G3D score of 15748 and the 3DMark Steel Nomad DX12 score of 3068 round out the primary graphics tests. The PassMark GPU Compute score is 7729. Legacy DirectX tests show lower scores: DirectX 9 at 183, DirectX 11 at 128, and both DirectX 10 and DirectX 12 at 76. The G2D score of 709 covers 2D performance.

The RTX 5070 Mobile has no recorded scores in any test category. Its average benchmark score is listed as 0, and it has no nearest rivals. This absence prevents any quantitative comparison. The data cannot show whether the NVIDIA mobile part would outperform the Intel desktop card in any specific workload.

The Arc B580's percentile ranking of 68 places it above the median GPU in the database. Its nearest rivals cluster closely: the RX 580 2048SP at 23061 (0.2% higher), the RTX 2080 at 22895 (0.6% lower), the RTX 3080 at 23172 (0.7% higher), and the P106-100 at 23249 (1% higher). The differences are small, ranging from 0.2% to 1%, which places the Arc B580 in a tight performance band.

The RTX 5070 Mobile's percentile ranking of 50 places it at the median, but this ranking exists without any benchmark scores to support it. The absence of recorded data for the NVIDIA part means the database treats it as an unmeasured entry. The Arc B580, by contrast, has a full suite of ten benchmark results. This asymmetry defines the entire comparison: one GPU has measurable performance, the other does not.

The FP32 throughput figures offer a point of near parity. The Arc B580 delivers 13.67 TFLOPS, and the RTX 5070 Mobile delivers 13.13 TFLOPS. These are within 0.54 TFLOPS of each other. The memory bandwidth favors the NVIDIA part at 576.0 GB/s versus 456.0 GB/s. The shading unit count favors NVIDIA at 4608 versus 2560. But without benchmark scores for the RTX 5070 Mobile, none of these architectural advantages can be translated into measured performance differences. The database records no test results for the NVIDIA GPU, so the head-to-head comparison remains incomplete.