Intel Arc Pro B390 vs NVIDIA H800 SXM5 Comparison

Head-to-Head Benchmarks

The recorded database contains no direct head-to-head benchmark entries for the Intel Arc Pro B390 and the NVIDIA H800 SXM5. Both products show an empty benchmark array, and the wins counter registers zero for each side. This absence of measured performance data means the comparison must rely entirely on the specification sheets and architectural parameters recorded in the database.

The raw compute figures reveal a decisive gap in raw throughput. The NVIDIA H800 SXM5 delivers 59.30 TFLOPS of FP32 compute, which is 7.7 times the 7.680 TFLOPS recorded for the Intel Arc Pro B390. In FP16 workloads, the gap widens substantially. The H800 SXM5 reaches 237.2 TFLOPS using a 4:1 ratio, while the Arc Pro B390 manages 15.36 TFLOPS with a 2:1 ratio. The NVIDIA part sustains 15.4 times the FP16 throughput of the Intel part, a margin that reflects the different design targets of the two products.

Texture throughput tells a similar story. The H800 SXM5 processes 926.6 GTexel/s against 120.0 GTexel/s for the Arc Pro B390, a factor of 7.7. Pixel rate is the one metric where the Intel part leads. The Arc Pro B390 records 60.00 GPixel/s, while the H800 SXM5 manages 42.12 GPixel/s. This 42.4% advantage for the Intel part in pixel fill suggests that for pure rasterization output, the smaller integrated GPU holds a per-clock advantage in its render output stage, despite having only 24 ROPs, the same count as the NVIDIA part.

Clock behavior differs sharply between the two. The Arc Pro B390 boosts to 2500 MHz from a 300 MHz base, a span that indicates aggressive dynamic frequency scaling for an integrated part. The H800 SXM5 runs at 1095 MHz base and 1755 MHz boost, a far narrower range. The Intel part's boost clock is 42.6% higher than the NVIDIA part's boost clock, yet the NVIDIA part still achieves 7.7 times the FP32 output because it carries 16896 shading units against 1536 for the Intel part, an 11.0 times unit advantage.

Memory bandwidth is the largest single discrepancy. The H800 SXM5 uses 80 GB of HBM3 across a 5120-bit bus, delivering 3.36 TB/s. The Arc Pro B390 uses system shared memory with a system-dependent bandwidth figure, so no comparable number exists in the database. In practice, the H800 SXM5 operates with a dedicated memory subsystem that cannot be matched by an integrated design sharing main memory.

Both products sit at the 50th percentile in the database's percentile versus all GPUs ranking, and neither has an average benchmark score recorded. The percentile placement does not reflect measured performance, as both entries lack benchmark data. The comparison that follows is therefore architectural and specification-based rather than derived from executed workloads.

FAQ

Q: Which GPU has the higher FP32 compute throughput?

A: The NVIDIA H800 SXM5 records 59.30 TFLOPS of FP32 compute, which is 7.7 times the 7.680 TFLOPS delivered by the Intel Arc Pro B390.

Q: How do the memory subsystems differ?

A: The H800 SXM5 carries 80 GB of HBM3 memory on a 5120-bit bus with 3.36 TB/s of bandwidth. The Arc Pro B390 uses system shared memory with a system-dependent bandwidth figure, so no fixed bandwidth number is recorded.

Q: Does the Intel part win any performance metric?

A: Yes. The Arc Pro B390 records 60.00 GPixel/s of pixel fill rate, which is 42.4% higher than the 42.12 GPixel/s of the H800 SXM5.

Q: What are the power requirements for each card?

A: The Arc Pro B390 has an 80 W TDP and uses no power connectors. The H800 SXM5 has a 700 W TDP, uses an 8-pin EPS connector, and the database lists a suggested PSU of 1100 W.

Q: What process nodes and foundries are used?

A: The Arc Pro B390 is built on a 3 nm process at Intel. The H800 SXM5 is built on a 5 nm process at TSMC.

Q: Which GPU has more shading units?

A: The H800 SXM5 has 16896 shading units, compared to 1536 for the Arc Pro B390, an 11.0 times difference.

Where Each One Wins

The NVIDIA H800 SXM5 dominates in every compute-heavy category covered by the database. Its FP32 output of 59.30 TFLOPS places it far ahead for general compute workloads, scientific simulation, and any task that relies on raw shader throughput. The FP16 figure of 237.2 TFLOPS gives it a massive advantage in AI inference and training workloads, particularly those that can exploit the 4:1 FP16 ratio. The 528 tensor cores provide dedicated hardware for matrix operations, while the Arc Pro B390 records no tensor core count at all. Texture throughput of 926.6 GTexel/s supports heavy texture-bound rendering, and the 3.36 TB/s memory bandwidth eliminates the memory bottleneck that limits integrated parts. The 80 GB HBM3 capacity suits large model weights and datasets that would never fit in shared system memory.

The Arc Pro B390 wins only in pixel fill rate, at 60.00 GPixel/s versus 42.12 GPixel/s. This suggests that for simple rasterization tasks, where geometry and texture complexity are low, the Intel part can output pixels faster than the NVIDIA accelerator. The 2500 MHz boost clock also indicates that the integrated part responds quickly to transient loads, scaling from 300 MHz to full speed as demand appears. The 12 ray tracing cores provide hardware acceleration for ray-traced workloads, a feature the H800 SXM5 does not list in its recorded specifications.

The use-case split follows the design intent. The H800 SXM5 is a server accelerator with no display outputs, an SXM module form factor, and a 700 W TDP. It targets compute clusters, data centers, and high-performance workloads where power density and memory capacity matter more than display connectivity. The Arc Pro B390 is an integrated GPU with no dedicated memory, no power connectors, and an IGP bus interface. It targets mobile or compact systems where the GPU shares main memory and the 80 W TDP fits within a processor's power envelope. The pixel rate advantage of the Intel part matters in integrated graphics scenarios, where the GPU must drive a display directly and fill conventional framebuffers. The NVIDIA part, with no display outputs recorded, never performs that role.

Specification Differences

The two products differ across nearly every measured specification in the database. The Intel Arc Pro B390 uses a 3 nm process at Intel, while the NVIDIA H800 SXM5 uses a 5 nm process at TSMC. The NVIDIA part records 80,000 million transistors on an 814 mm² die, with a transistor density of 98.3M per mm². The Intel part lists unknown transistor count and die size.

Memory configurations are fundamentally different. The Arc Pro B390 uses system shared memory with a system-dependent bandwidth. The H800 SXM5 uses 80 GB of HBM3 on a 5120-bit bus with 3.36 TB/s of bandwidth. The clock structures differ as well: the Arc Pro B390 runs at 300 MHz base and 2500 MHz boost, while the H800 SXM5 runs at 1095 MHz base and 1755 MHz boost, with memory clocked at 1313 MHz and 5.3 Gbps effective.

Compute resources vary by large factors. The Arc Pro B390 has 1536 shading units, 48 TMUs, and 24 ROPs. The H800 SXM5 has 16896 shading units, 528 TMUs, and 24 ROPs. The Intel part has 12 ray tracing cores and no tensor core count recorded. The NVIDIA part has 528 tensor cores and no ray tracing core count recorded. FP32 output is 7.680 TFLOPS for Intel versus 59.30 TFLOPS for NVIDIA. FP16 output is 15.36 TFLOPS at 2:1 for Intel versus 237.2 TFLOPS at 4:1 for NVIDIA.

Power and physical specifications diverge completely. The Arc Pro B390 has an 80 W TDP, an IGP slot width, no power connectors, no suggested PSU, and an IGP bus interface. The H800 SXM5 has a 700 W TDP, an SXM Module slot width, an 8-pin EPS power connector, a suggested PSU of 1100 W, and a PCIe 5.0 x16 bus interface. Display outputs are portable-device-dependent for the Intel part and absent for the NVIDIA part. API support also differs: the Arc Pro B390 lists DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, while the H800 SXM5 records no API entries.

Release timing separates the products as well. The Arc Pro B390 carries a release date of 2026-01-26, while the H800 SXM5 was released on 2023-03-20. The Intel part lists its predecessor as HD Graphics-WM. The NVIDIA part lists Server Ada as its predecessor and Server Blackwell as its successor. Both products are marked as Active in the database.

Architecture Differences

The Intel Arc Pro B390 is built on the Xe3-LPG architecture, belongs to the Arc Graphics-WM generation, and uses the Panther Lake chip. The NVIDIA H800 SXM5 is built on the Hopper architecture, belongs to the Server Hopper generation, and uses the GH100 chip. These are fundamentally different design families: Xe3-LPG is Intel's low-power graphics architecture intended for integrated use, while Hopper is NVIDIA's data center compute architecture.

The Intel part uses Intel's own 3 nm foundry process. The NVIDIA part uses TSMC's 5 nm process. Transistor counts reflect the scale difference: the GH100 chip packs 80,000 million transistors on an 814 mm² die, whereas the Panther Lake integrated GPU records no separate transistor or die size figures in the database, consistent with a GPU block integrated into a larger processor package.

The rendering pipelines differ in composition. The Arc Pro B390 pairs 1536 shading units with 48 TMUs and 24 ROPs, and adds 12 ray tracing cores. The H800 SXM5 pairs 16896 shading units with 528 TMUs and 24 ROPs, and adds 528 tensor cores instead of ray tracing hardware. The ray tracing cores on the Intel part indicate support for DirectX 12 Ultimate features, while the tensor cores on the NVIDIA part target deep learning and matrix math. The FP16 ratios reflect this split: Intel records 2:1, NVIDIA records 4:1, meaning NVIDIA's FP16 path doubles its FP32 throughput ratio.

Memory architecture is the defining difference. The Arc Pro B390 uses system shared memory, meaning its bandwidth depends on the host platform's memory subsystem. The H800 SXM5 uses dedicated HBM3 with a 5120-bit interface and fixed 3.36 TB/s bandwidth. The NVIDIA part's 80 GB capacity exceeds any shared-memory allocation an integrated GPU could expect, and the dedicated high-bandwidth stack removes contention with the CPU.

The form factors encode the intended deployment. The Arc Pro B390 is an IGP with no power connectors and a 300 MHz idle clock, designed to live inside a processor and draw from the platform's existing power delivery. The H800 SXM5 is an SXM Module with its own 8-pin EPS connector and a suggested 1100 W PSU, designed to sit on a server baseboard and draw dedicated power. The Arc Pro B390 drives portable-device-dependent displays; the H800 SXM5 has no display outputs. The database records the H800 SXM5 as the successor to Server Ada and the predecessor of Server Blackwell, placing it in a known server product lineage, while the Arc Pro B390 follows HD Graphics-WM as Intel's integrated graphics progression.