Intel Arc Pro B65 vs NVIDIA H800 PCIe 80 GB Comparison

Where Each One Wins

The recorded data for the Intel Arc Pro B65 and the NVIDIA H800 PCIe 80 GB shows no benchmark wins for either card in the head-to-head comparison set. The database indicates zero wins for each GPU, meaning there are no measured performance deltas to separate them by workload type. This absence of benchmark data means the use-case split must be derived from their architectural and specification profiles rather than from direct performance measurements.

The Intel Arc Pro B65 is positioned around its Xe2-HPG architecture, which delivers a pixel rate of 192.0 GPixel/s and a texture rate of 384.0 GTexel/s. These figures point toward a card designed for rasterization-heavy tasks, particularly in professional visualization and content creation workflows. Its 32 GB of GDDR6 memory on a 256-bit bus provides 608.0 GB/s of bandwidth, which is substantial for handling large textures or multi-display output scenarios. The presence of 4x DisplayPort 2.1 outputs reinforces its role as a workstation-oriented GPU for driving multiple high-resolution monitors.

The NVIDIA H800 PCIe 80 GB, by contrast, is a server-focused accelerator with no display outputs. Its 80 GB of HBM2e memory on a 5120-bit bus yields 2.04 TB/s of bandwidth, a figure that dwarfs the Arc Pro B65's memory throughput. The H800 also carries 456 tensor cores and a peak FP16 rate of 204.9 TFLOPS (4:1), indicating a design optimized for compute-heavy tasks such as AI inference or scientific simulation. Its FP32 rate of 51.22 TFLOPS is more than four times the Arc Pro B65's 12.29 TFLOPS, further separating the two in raw compute capability.

Since the head-to-head benchmark set is empty, the data suggests a clear functional divergence: the Arc Pro B65 leans toward graphics output and interactive workloads, while the H800 targets headless compute environments. The wins, if they existed, would likely follow this pattern, but the database currently records no measurable victories for either side.

Architecture Differences

The two GPUs stem from different architectural lineages. The Intel Arc Pro B65 uses the BMG-G21 chip based on Xe2-HPG, part of the Battlemage (Pro Series) generation. It is built on a 5 nm process at TSMC, with 19,600 million transistors packed into a 272 mm² die, yielding a transistor density of 72.1M per mm². The NVIDIA H800 PCIe 80 GB uses the GH100 chip based on Hopper, from the Server Hopper (Hxx) generation. It also uses a 5 nm TSMC process but features 80,000 million transistors on an 814 mm² die, achieving a higher transistor density of 98.3M per mm².

Clock behavior differs significantly. The Arc Pro B65 runs at a base and boost clock of 2400 MHz, while the H800 operates at a much lower base of 1095 MHz but boosts to 1755 MHz. Memory clocks also contrast: the Arc Pro B65 uses 2375 MHz (19 Gbps effective) for its GDDR6, while the H800's HBM2e runs at 1593 MHz (3.2 Gbps effective). The H800 compensates with a far wider 5120-bit bus, resulting in 2.04 TB/s bandwidth versus the Arc Pro B65's 608.0 GB/s.

Core counts diverge sharply. The Arc Pro B65 has 2560 shading units, 160 TMUs, and 80 ROPs, along with 20 ray tracing cores. The H800 has 14,592 shading units, 456 TMUs, and only 24 ROPs, with no listed ray tracing cores but 456 tensor cores. The pixel rate reflects this: the Arc Pro B65 achieves 192.0 GPixel/s, while the H800 manages just 42.12 GPixel/s, a result of the H800's low ROP count. Texture rates tell a different story: the H800 reaches 800.3 GTexel/s, more than double the Arc Pro B65's 384.0 GTexel/s.

API support is another split. The Arc Pro B65 lists DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, while the H800 has no API entries in the database. Power and physical design also differ: the Arc Pro B65 draws 200 W with a single 8-pin connector and a suggested 550 W PSU, whereas the H800 draws 350 W with a single 16-pin connector and a suggested 750 W PSU. Both are dual-slot cards, but the H800 is specified at 268 mm in length and 111 mm in height, while the Arc Pro B65 has no listed dimensions. The H800 has no display outputs, reinforcing its server role.

The Verdict

The data points to distinct buyers for each GPU. The Intel Arc Pro B65, with its 32 GB GDDR6, 256-bit bus, and DisplayPort 2.1 outputs, suits environments requiring high-resolution display output and graphics rendering. Its 192.0 GPixel/s pixel rate and 12.29 TFLOPS FP32 performance are modest compared to the H800, but the card's 200 W power draw and 1x 8-pin connector make it easier to integrate into workstation builds. The 50th percentile ranking against all GPUs in the database, with an average benchmark score of zero, indicates it sits in the middle of the field, though the lack of benchmark data limits further interpretation.

The NVIDIA H800 PCIe 80 GB is clearly aimed at compute-centric tasks. Its 80 GB HBM2e memory with 2.04 TB/s bandwidth, 456 tensor cores, and 204.9 TFLOPS FP16 performance are all hallmarks of a server accelerator for AI or high-performance computing. The absence of display outputs and API support entries confirms it is not intended for interactive graphics. The 350 W TDP and 16-pin connector align with data-center power delivery. Its 50th percentile ranking also reflects a mid-field position, but again, no benchmark scores exist to refine this.

Given the empty head-to-head benchmark set, the verdict is straightforward: the Arc Pro B65 serves users who need a graphics output-capable card with balanced compute and display features, while the H800 serves users who prioritize memory bandwidth, tensor throughput, and raw FP32/FP16 compute in a headless configuration. Neither card is superior across all metrics; they are specialized tools for different workloads.

FAQ

Q: What is the memory capacity difference between the two GPUs?

A: The Intel Arc Pro B65 has 32 GB of GDDR6 memory, while the NVIDIA H800 PCIe 80 GB has 80 GB of HBM2e memory.

Q: Which GPU has higher memory bandwidth?

A: The NVIDIA H800 PCIe 80 GB offers 2.04 TB/s bandwidth, far exceeding the Intel Arc Pro B65's 608.0 GB/s.

Q: Does the NVIDIA H800 PCIe 80 GB support display output?

A: No, the database lists "No outputs" for the H800, whereas the Intel Arc Pro B65 features 4x DisplayPort 2.1 outputs.

Q: What is the FP32 compute performance comparison?

A: The NVIDIA H800 PCIe 80 GB delivers 51.22 TFLOPS FP32, while the Intel Arc Pro B65 provides 12.29 TFLOPS FP32.

Q: What are the power consumption figures?

A: The Intel Arc Pro B65 has a TDP of 200 W with a 1x 8-pin connector, while the NVIDIA H800 PCIe 80 GB has a TDP of 350 W with a 1x 16-pin connector.

Q: Which GPU has more shading units?

A: The NVIDIA H800 PCIe 80 GB has 14,592 shading units, compared to 2,560 on the Intel Arc Pro B65.

Head-to-Head Benchmarks

The database contains no head-to-head benchmark entries for the Intel Arc Pro B65 versus the NVIDIA H800 PCIe 80 GB. The winsA and winsB fields are both zero, and the headToHeadBenchmarks array is empty. This means no measured performance deltas are available to report for specific applications or synthetic tests.

In the absence of direct comparisons, the closest proxy comes from the specification-level differences. The largest gaps appear in memory bandwidth: the H800's 2.04 TB/s is 3.35 times the Arc Pro B65's 608.0 GB/s. FP32 throughput shows a similar ratio, with the H800 at 51.22 TFLOPS versus 12.29 TFLOPS, a 4.17x difference. FP16 is even more lopsided, as the H800's 204.9 TFLOPS (4:1) compares to the Arc Pro B65's 24.58 TFLOPS (2:1), an 8.33x margin.

The reverse direction favors the Arc Pro B65 in pixel throughput. Its 192.0 GPixel/s is 4.56 times the H800's 42.12 GPixel/s. Clock speeds also favor Intel, with the Arc Pro B65 boosting to 2400 MHz versus the H800's 1755 MHz. The Arc Pro B65 also lists ray tracing cores (20 of them) while the H800 has none, and it supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, none of which are listed for the H800.

These figures, while not from head-to-head benchmarks, indicate where each GPU would excel: the H800 for compute-bound tasks that leverage memory bandwidth and tensor cores, and the Arc Pro B65 for graphics-bound tasks that rely on pixel output and API compatibility. Without recorded benchmark scores, these remain inferences from the specification data.

Specification Differences

The following fields differ between the Intel Arc Pro B65 and the NVIDIA H800 PCIe 80 GB:

• Chip: BMG-G21 versus GH100
• Architecture: Xe2-HPG versus Hopper
• Generation: Battlemage (Pro Series) versus Server Hopper (Hxx)
• Transistors: 19,600 million versus 80,000 million
• Die Size: 272 mm² versus 814 mm²
• Transistor Density: 72.1M / mm² versus 98.3M / mm²
• Base Clock: 2400 MHz versus 1095 MHz
• Boost Clock: 2400 MHz versus 1755 MHz
• Memory Clock: 2375 MHz 19 Gbps effective versus 1593 MHz 3.2 Gbps effective
• Memory Size: 32 GB versus 80 GB
• Memory Type: GDDR6 versus HBM2e
• Memory Bus Width: 256 bit versus 5120 bit
• Memory Bandwidth: 608.0 GB/s versus 2.04 TB/s
• Shading Units: 2560 versus 14592
• TMUs: 160 versus 456
• ROPs: 80 versus 24
• RT Cores: 20 versus null
• Tensor Cores: null versus 456
• Pixel Rate: 192.0 GPixel/s versus 42.12 GPixel/s
• Texture Rate: 384.0 GTexel/s versus 800.3 GTexel/s
• FP32: 12.29 TFLOPS versus 51.22 TFLOPS
• FP16: 24.58 TFLOPS (2:1) versus 204.9 TFLOPS (4:1)
• TDP: 200 W versus 350 W
• Power Connectors: 1x 8-pin versus 1x 16-pin
• Suggested PSU: 550 W versus 750 W
• Display Outputs: 4x DisplayPort 2.1 versus No outputs
• APIs: DirectX 12 Ultimate (12_2), OpenGL 4.6, Vulkan 1.4 versus null (all three)
• Dimensions: null (length, height, width) versus 268 mm length, 111 mm height
• Release Date: 2026-03-31 versus 2023-03-20
• Predecessor: null versus Server Ada
• Successor: null versus Server Blackwell