Intel Arc Pro B370 vs Intel Iris Xe Graphics 80EU Mobile Comparison

Intel Arc Pro B370 and Intel Iris Xe Graphics 80EU Mobile are both integrated graphics solutions from Intel, but they target different segments of the mobile market. The Arc Pro B370 is based on the Panther Lake chip with the Xe3-LPG architecture, while the Iris Xe 80EU uses the Raptor Lake chip with Generation 12.2 architecture. The database records show both parts occupy the 50th percentile against all GPUs, indicating a similar overall standing in the broader performance distribution, though their architectural approaches and feature sets diverge significantly.

Where Each One Wins

The Intel Arc Pro B370 is positioned for workloads that demand modern graphics features and higher compute throughput. Its architecture supports DirectX 12 Ultimate with the 12_2 feature level, which enables advanced rendering techniques such as ray tracing and mesh shaders. The presence of 10 dedicated ray tracing cores gives it a clear advantage in applications that leverage hardware-accelerated ray tracing. The Iris Xe 80EU, by contrast, supports DirectX 12 at the 12_1 feature level and lacks dedicated ray tracing hardware, making it more suited to conventional rasterization workloads and older API titles.

The Iris Xe 80EU Mobile, with a 15 W thermal design power, is oriented toward efficiency in thin-and-light notebooks. Its lower TDP aligns with systems prioritizing battery life over peak performance. The Arc Pro B370, at 25 W, consumes more power but delivers substantially higher raw compute figures. For users running lighter productivity tasks, media playback, or esports titles that do not stress the GPU, the Iris Xe offers a lower-power option. However, the benchmark data indicates the Arc Pro B370 wins decisively in compute-heavy scenarios, including content creation, 3D rendering, and any workload that can utilize its larger shader array.

The Arc Pro B370 also carries the "Pro" designation, suggesting it is aimed at professional and creator applications where stability and feature support matter more than raw gaming frame rates. The Iris Xe 80EU, with its Generation 12.2 architecture, is the older design and is more common in mainstream consumer laptops. The wins for each part thus split along architectural capability: the Arc Pro B370 excels in modern API support and parallel compute, while the Iris Xe 80EU wins on power efficiency for basic graphics tasks.

Architecture Differences

The two GPUs are built on entirely different process nodes and microarchitectures. The Arc Pro B370 uses a 3 nm process node, while the Iris Xe 80EU is fabricated on a 10 nm node. This process difference contributes to the Arc Pro B370's ability to pack 1280 shading units into its silicon, double the 640 shading units of the Iris Xe. Both parts feature 40 texture mapping units and 20 raster output units, but the Arc Pro B370 adds 10 ray tracing cores that the Iris Xe lacks entirely.

The clock behavior also differs substantially. The Arc Pro B370 has a base clock of 300 MHz and a boost clock of 2400 MHz, whereas the Iris Xe 80EU runs at a 300 MHz base and a 1450 MHz boost. The higher boost clock on the Arc Pro B370, combined with its doubled shader count, drives its compute advantage. The Iris Xe 80EU is built on the Raptor Lake chip, which integrates the GPU into a larger SoC design, while the Arc Pro B370 uses the Panther Lake chip with the Xe3-LPG architecture. The bus interface also differs: the Arc Pro B370 uses an IGP interface, while the Iris Xe 80EU connects via a Ring Bus.

Both GPUs share system memory, with memory type, bus width, and bandwidth listed as system dependent. Neither part has dedicated VRAM, so performance scales with the host system's memory configuration. The Arc Pro B370 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The Iris Xe 80EU supports DirectX 12 (12_1), OpenGL 4.6, and Vulkan 1.4. The DirectX feature level difference is the most significant API gap, as 12_2 enables hardware ray tracing and other advanced features not available in 12_1.

Head-to-Head Benchmarks

The recorded data shows no direct head-to-head benchmark entries between these two parts, but the specification comparison allows for a clear quantitative analysis. The Arc Pro B370 delivers 6.144 TFLOPS of FP32 compute, compared to 1.856 TFLOPS for the Iris Xe 80EU. This represents a 3.31 times advantage for the Arc Pro B370 in single-precision floating-point throughput. In FP16 compute, the Arc Pro B370 reaches 12.29 TFLOPS (2:1) versus 3.712 TFLOPS (2:1) for the Iris Xe, a 3.31 times advantage as well.

Pixel throughput shows the Arc Pro B370 at 48.00 GPixel/s, while the Iris Xe 80EU manages 29.00 GPixel/s. This is a 1.66 times advantage in pixel fill rate. Texture fill rate follows a similar pattern: the Arc Pro B370 achieves 96.00 GTexel/s, while the Iris Xe 80EU delivers 58.00 GTexel/s, a 1.66 times difference. These ratios reflect the identical TMU and ROP counts between the parts, with the Arc Pro B370's higher clock speed providing the fill rate advantage.

The shading unit count is the largest single differentiator. With 1280 shading units at a 2400 MHz boost, the Arc Pro B370 sustains a much higher arithmetic throughput than the 640 shading units of the Iris Xe at 1450 MHz. In applications that scale with shader count, such as GPU compute, video encoding, or 3D rendering, the Arc Pro B370 will outperform the Iris Xe by a wide margin. The ray tracing cores on the Arc Pro B370 further widen the gap in ray-traced workloads, where the Iris Xe has no hardware acceleration and must fall back on compute shaders.

The TDP difference of 25 W versus 15 W indicates that the Arc Pro B370 draws more power to achieve these figures. The performance per watt is not directly recorded, but the raw throughput numbers show that the Arc Pro B370 trades power for a substantial compute advantage. The Iris Xe 80EU, with its lower TDP and older 10 nm process, remains a capable part for light graphics work but cannot match the Arc Pro B370 in sustained heavy workloads.

Specification Differences

The two GPUs differ across nearly every major specification category. The process node is 3 nm for the Arc Pro B370 and 10 nm for the Iris Xe 80EU, representing two generations of manufacturing technology. The architecture is Xe3-LPG for the Arc Pro B370 versus Generation 12.2 for the Iris Xe. The chip is Panther Lake for the Arc Pro B370 and Raptor Lake for the Iris Xe.

Clock speeds are a key differentiator: the Arc Pro B370 boosts to 2400 MHz, while the Iris Xe 80EU boosts to 1450 MHz. Both have a 300 MHz base clock. Shading units are 1280 versus 640, a doubling that drives most compute differences. The Arc Pro B370 includes 10 ray tracing cores, a feature entirely absent from the Iris Xe 80EU. Texture mapping units and raster output units are identical at 40 and 20 respectively.

The pixel rate is 48.00 GPixel/s for the Arc Pro B370 and 29.00 GPixel/s for the Iris Xe. Texture rate is 96.00 GTexel/s versus 58.00 GTexel/s. FP32 compute is 6.144 TFLOPS versus 1.856 TFLOPS, and FP16 compute is 12.29 TFLOPS versus 3.712 TFLOPS. Thermal design power is 25 W for the Arc Pro B370 and 15 W for the Iris Xe.

The bus interface differs: IGP for the Arc Pro B370 and Ring Bus for the Iris Xe. DirectX support is 12 Ultimate (12_2) for the Arc Pro B370 and 12 (12_1) for the Iris Xe. Both support OpenGL 4.6 and Vulkan 1.4. The release dates are January 26, 2026 for the Arc Pro B370 and January 3, 2023 for the Iris Xe. The Arc Pro B370 lists its predecessor as HD Graphics-WM, while the Iris Xe lists its successor as Arc Graphics-M.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The Intel Arc Pro B370 delivers 6.144 TFLOPS of FP32 compute, compared to 1.856 TFLOPS for the Intel Iris Xe Graphics 80EU Mobile. This gives the Arc Pro B370 a 3.31 times advantage in single-precision floating-point throughput.

Q: Does the Intel Iris Xe Graphics 80EU Mobile support hardware ray tracing?

A: No. The Iris Xe 80EU has no ray tracing cores and supports DirectX 12 at the 12_1 feature level. The Intel Arc Pro B370 includes 10 ray tracing cores and supports DirectX 12 Ultimate (12_2).

Q: What are the thermal design power ratings for these two GPUs?

A: The Intel Arc Pro B370 has a TDP of 25 W, while the Intel Iris Xe Graphics 80EU Mobile has a TDP of 15 W. The Iris Xe consumes less power, making it suitable for more power-constrained designs.

Q: How do the shading unit counts compare between the two parts?

A: The Intel Arc Pro B370 has 1280 shading units, exactly double the 640 shading units found in the Intel Iris Xe Graphics 80EU Mobile. Both parts have 40 texture mapping units and 20 raster output units.

Q: What are the boost clock speeds of each GPU?

A: The Intel Arc Pro B370 boosts to 2400 MHz, while the Intel Iris Xe Graphics 80EU Mobile boosts to 1450 MHz. Both have a base clock of 300 MHz.

Q: Which GPU supports newer DirectX features?

A: The Intel Arc Pro B370 supports DirectX 12 Ultimate (12_2), which includes advanced features like ray tracing. The Intel Iris Xe Graphics 80EU Mobile supports DirectX 12 (12_1), which lacks these features. Both support OpenGL 4.6 and Vulkan 1.4.