Intel Arc Graphics 64EU vs Intel Arc Pro B390 Comparison

Head-to-Head Benchmarks

The recorded benchmark data for these two processors is sparse, but what exists paints a clear picture of their relative standing. The Intel Arc Graphics 64EU has a single recorded 3DMark Steel Nomad DX12 score of 733. This places it in the 3rd percentile of all GPUs in the database. Its nearest rivals in the database are the Intel Arc Graphics 32EU and Intel Arc Graphics 24EU, both with identical average scores of 733, resulting in a delta percentage of 0. The AMD Radeon HD 6470M sits slightly behind at 723, a 1.4 percent deficit, while the NVIDIA GeForce GT 415M leads this small group with a score of 751, representing a 2.4 percent advantage over the 64EU part.

The Intel Arc Pro B390 has no recorded benchmark scores in the database. Its average benchmark score is listed as zero, and its nearest rivals list is empty. The database does place it in the 50th percentile of all GPUs, which is a substantial leap over the 3rd percentile position of the 64EU. However, without direct head-to-head benchmark results, the comparison must rely on the percentile placement and the underlying architectural specifications.

The data indicates that the B390 is positioned significantly higher in the overall performance distribution. A 50th percentile placement means it sits at the median of all recorded GPUs, while the 64EU is near the very bottom. The gap between the 3rd and 50th percentiles represents a massive performance chasm that aligns with the differences in their compute resources, which are detailed in the following sections.

Architecture Differences

The two processors come from different manufacturing and design generations. The Intel Arc Graphics 64EU uses the Xe-LPG architecture and is built on the Arrow Lake-S chip. It is fabricated on a 3 nm process at TSMC. The Intel Arc Pro B390 uses the newer Xe3-LPG architecture, is built on the Panther Lake chip, and is also fabricated on a 3 nm process, but at Intel's own foundry. Both are integrated graphics processors, with the 64EU using a Ring Bus interface and the B390 using an IGP bus interface.

The compute core counts diverge sharply. The 64EU has 512 shading units, 32 texture mapping units, and 16 raster output pipelines. The B390 more than triples the shading units to 1,536, increases TMUs to 48, and ROPs to 24. The B390 also includes 12 ray tracing cores, a feature entirely absent from the 64EU's specification sheet. Neither part lists tensor cores.

Clock speeds show a notable difference. The 64EU has a base clock of 300 MHz and a boost clock of 1900 MHz. The B390 also starts at 300 MHz base but boosts to 2500 MHz, a 600 MHz higher ceiling. This clock advantage compounds the raw core count advantage.

The resulting throughput figures are dramatically higher for the B390. The 64EU delivers a pixel rate of 30.40 GPixel/s and a texture rate of 60.80 GTexel/s. The B390 achieves 60.00 GPixel/s and 120.0 GTexel/s, roughly doubling both rates. Floating point performance follows the same pattern. The 64EU provides 1.946 TFLOPS for FP32 and 3.891 TFLOPS for FP16 (2:1). The B390 delivers 7.680 TFLOPS FP32 and 15.36 TFLOPS FP16 (2:1), a factor of roughly 3.95 in both cases.

Memory configurations are functionally identical in description. Both use System Shared memory with System Shared type and bus width. The 64EU lists bandwidth as System Dependent, while the B390 lists it as System Dependent as well. Neither has a dedicated memory pool. This means actual memory performance will be tied to the host platform's system memory in both cases.

Power draw differs modestly. The 64EU has a TDP of 65 W, while the B390 is rated at 80 W. Both are integrated parts with no expansion slot width. The B390 lists no power connectors, indicating it draws power entirely from the motherboard. The 64EU does not specify power connectors. Neither part lists a suggested PSU.

The B390 is the newer release. The 64EU launched on October 23, 2024. The B390 launched on January 26, 2026, roughly 15 months later. Both are listed as Active in production status. The 64EU lists its predecessor as HD Graphics, while the B390 lists HD Graphics-WM. Neither has a successor listed.

The Verdict

The recorded data shows a clear hierarchy. The Intel Arc Pro B390 sits at the 50th percentile of all GPUs in the database, while the Intel Arc Graphics 64EU sits at the 3rd percentile. This is the single most important data point for separating the two. The B390 has no benchmark scores, but its percentile placement indicates it is expected to perform at the median level of the database, a far stronger position than the 64EU.

For workloads that depend on rasterization throughput, the B390's numbers are decisively higher. Its pixel rate of 60.00 GPixel/s is nearly double the 30.40 GPixel/s of the 64EU. Its texture rate of 120.0 GTexel/s is exactly double the 60.80 GTexel/s of the 64EU. FP32 compute is 7.680 TFLOPS versus 1.946 TFLOPS, a 3.95x advantage. FP16 compute is 15.36 TFLOPS versus 3.891 TFLOPS, again a 3.95x advantage.

The B390 also brings ray tracing cores, which the 64EU lacks entirely. Applications that use DirectX 12 Ultimate features, which both support at the 12_2 level, will find the B390 has dedicated hardware for ray-traced effects while the 64EU does not.

The 64EU is not without its own data points. Its nearest rival, the NVIDIA GeForce GT 415M, beats it by 2.4 percent. Its other nearest rivals, the Intel Arc Graphics 32EU and 24EU, match it exactly. This places the 64EU in a group of very low-end integrated graphics. The B390 has no such rivals listed, which suggests the database has not yet collected enough data to position it against specific competitors.

For a user choosing between the two strictly on the recorded data, the B390 is the stronger part in every measured specification category except power draw and memory bandwidth, where the B390 draws 80 W versus 65 W and both are system dependent. The 64EU is the lower-power, lower-performance part. The B390 is the higher-power, dramatically higher-performance part. No price data is recorded for either unit.

FAQ

Q: Which processor has the higher average benchmark score?

A: The Intel Arc Graphics 64EU has an average benchmark score of 733 from one recorded 3DMark Steel Nomad DX12 test. The Intel Arc Pro B390 has no recorded benchmark scores and an average benchmark score of 0.

Q: How do the shading unit counts compare?

A: The Intel Arc Graphics 64EU has 512 shading units. The Intel Arc Pro B390 has 1,536 shading units, exactly three times as many.

Q: Which processor includes ray tracing hardware?

A: Only the Intel Arc Pro B390 lists ray tracing cores, with 12 units. The Intel Arc Graphics 64EU does not list any ray tracing cores.

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

A: The Intel Arc Graphics 64EU has a boost clock of 1900 MHz. The Intel Arc Pro B390 has a boost clock of 2500 MHz.

Q: How does the FP32 performance compare?

A: The Intel Arc Graphics 64EU delivers 1.946 TFLOPS of FP32 compute. The Intel Arc Pro B390 delivers 7.680 TFLOPS, approximately 3.95 times higher.

Q: What are the TDP ratings for each?

A: The Intel Arc Graphics 64EU is rated at 65 W. The Intel Arc Pro B390 is rated at 80 W.

Q: Which processors use which foundry?

A: The Intel Arc Graphics 64EU is fabricated at TSMC on a 3 nm process. The Intel Arc Pro B390 is fabricated at Intel on a 3 nm process.

Where Each One Wins

The Intel Arc Pro B390 wins in every compute and throughput category recorded in the database. Its FP32 throughput of 7.680 TFLOPS is 3.95x the 64EU's 1.946 TFLOPS. Its FP16 throughput of 15.36 TFLOPS is 3.95x the 64EU's 3.891 TFLOPS. Its pixel rate of 60.00 GPixel/s is 1.97x the 64EU's 30.40 GPixel/s. Its texture rate of 120.0 GTexel/s is 1.97x the 64EU's 60.80 GTexel/s. It also has 12 ray tracing cores where the 64EU has none. Its boost clock of 2500 MHz is 600 MHz higher than the 64EU's 1900 MHz. Its shading unit count of 1,536 is exactly three times the 64EU's 512. Its TMU count of 48 is 1.5x the 64EU's 32. Its ROP count of 24 is 1.5x the 64EU's 16. Its percentile placement of 50 is 47 percentage points higher than the 64EU's 3.

The Intel Arc Graphics 64EU wins in power efficiency on paper. Its TDP of 65 W is 15 W lower than the B390's 80 W. The 64EU also has a shorter release history, launching on October 23, 2024, versus the B390's January 26, 2026 launch. Both processors use system shared memory, so neither has an advantage in dedicated memory capacity or bandwidth.

The B390's higher TDP is the trade-off for its substantial compute advantage. The 64EU's lower TDP makes it the more power-conscious choice, but the performance gap is immense. In the database's percentile rankings, the 64EU sits near the bottom at 3, while the B390 sits at the median at 50.

Specification Differences

The two processors differ across nearly every recorded specification. The process node is identical at 3 nm, but the foundry differs: TSMC for the 64EU and Intel for the B390. The 64EU uses the Arrow Lake-S chip with Xe-LPG architecture. The B390 uses the Panther Lake chip with Xe3-LPG architecture.

Transistor counts and die sizes are only recorded for the 64EU. It has 17,800 million transistors on a 243 mm² die, with a transistor density of 73.3M per mm². The B390 has unknown transistor count and die size, with no density listed.

The shading unit count differs by a factor of three: 512 for the 64EU versus 1,536 for the B390. TMUs are 32 versus 48. ROPs are 16 versus 24. The B390 has 12 ray tracing cores; the 64EU has none. Neither lists tensor cores.

Base clocks are identical at 300 MHz. Boost clocks differ: 1900 MHz for the 64EU and 2500 MHz for the B390. Neither has a game clock listed.

Memory specifications are the same in structure: both use System Shared size, type, and bus width. Bandwidth is System Dependent for the 64EU and System Dependent for the B390.

Pixel rate is 30.40 GPixel/s for the 64EU versus 60.00 GPixel/s for the B390. Texture rate is 60.80 GTexel/s versus 120.0 GTexel/s. FP32 is 1.946 TFLOPS versus 7.680 TFLOPS. FP16 is 3.891 TFLOPS versus 15.36 TFLOPS, both at a 2:1 ratio.

TDP is 65 W for the 64EU and 80 W for the B390. Both are IGP slot width. The B390 lists no power connectors; the 64EU does not specify. Neither lists a suggested PSU. Bus interface is Ring Bus for the 64EU and IGP for the B390. Display outputs are Motherboard Dependent for the 64EU and Portable Device Dependent for the B390.

API support is identical: DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4 for both. Release dates differ: October 23, 2024 for the 64EU and January 26, 2026 for the B390. Predecessors are HD Graphics for the 64EU and HD Graphics-WM for the B390. Both are Active in production and neither has a successor listed.