Intel Arc B770 vs NVIDIA H800 PCIe 80 GB Comparison

Head-to-Head Benchmarks

The recorded database contains no benchmark scores for either the Intel Arc B770 or the NVIDIA H800 PCIe 80 GB. Both cards register an average benchmark score of zero and a percentile rank of 50 against all GPUs, with no head-to-head comparison entries available. This absence of measured performance data means the two accelerators cannot be ranked against each other through direct computational testing. What the database does provide is a complete set of architectural and specification records, allowing for a comparative analysis based on hardware capabilities rather than empirical results.

The most significant performance advantage belongs to the NVIDIA H800 PCIe 80 GB in raw compute throughput. Its FP32 rating reaches 51.22 TFLOPS, more than 2.6 times the 19.66 TFLOPS delivered by the Intel Arc B770. The gap widens dramatically in FP16 workloads. The H800 produces 204.9 TFLOPS using a 4:1 ratio, while the Arc B770 manages 39.32 TFLOPS with a 2:1 ratio. That places the NVIDIA part at roughly 5.2 times the half-precision throughput of the Intel card. For AI training and inference tasks that rely heavily on FP16 math, the H800 holds a decisive edge on paper.

Memory capacity and bandwidth further favor the NVIDIA accelerator. The H800 packs 80 GB of HBM2e across a 5120-bit bus, yielding 2.04 TB/s of bandwidth. The Arc B770 carries 16 GB of GDDR6 on a 256-bit interface, producing 512.0 GB/s. The H800 offers five times the memory capacity and four times the bandwidth. This disparity suggests the NVIDIA card is built for massive datasets and memory-bound workloads, while the Intel part targets more modest memory footprints.

The Intel Arc B770 does claim advantages in several specific metrics. Its pixel rate reaches 307.2 GPixel/s, which is more than seven times the 42.12 GPixel/s recorded for the H800. The Intel card also achieves a texture rate of 614.4 GTexel/s, though the NVIDIA part counters with 800.3 GTexel/s, a 30% higher fill rate. The Arc B770 includes 32 dedicated ray tracing cores, while the H800 lists no RT cores in the database. Clock speeds also differ substantially. The Intel GPU runs at a base of 2100 MHz and boosts to 2400 MHz. The NVIDIA GPU operates at a 1095 MHz base and 1755 MHz boost, meaning the Intel part has a 47% higher boost clock.

The H800 compensates with a far larger compute infrastructure. It contains 14,592 shading units, 456 tensor cores, and 456 texture mapping units. The Arc B770 has 4,096 shading units, 256 TMUs, and 128 ROPs. The NVIDIA card also features 80,000 million transistors on an 814 mm² die, compared to the Intel card's unknown transistor count on a 368 mm² die. Transistor density for the H800 is recorded at 98.3 million per square millimeter. The Intel die is less than half the physical size, which points to a more compact design but also a smaller overall compute footprint.

The Verdict

The data indicates two entirely different classes of hardware. The NVIDIA H800 PCIe 80 GB is a server-grade accelerator designed for high-throughput compute environments. Its 80 GB HBM2e memory, 2.04 TB/s bandwidth, 456 tensor cores, and 204.9 TFLOPS FP16 performance position it for large-scale AI workloads, scientific simulations, and data center applications. The card has no display outputs, confirming it is not intended for graphics output. Its predecessor is Server Ada and its successor is Server Blackwell, placing it in a dedicated server product lineage.

The Intel Arc B770 targets a different segment. It is a dual-slot graphics card with HDMI 2.1a and three DisplayPort 2.1 outputs, making it suitable for display-driven tasks. Its 16 GB GDDR6 memory and 512.0 GB/s bandwidth are far below the H800's specifications, but its 307.2 GPixel/s pixel rate and 32 ray tracing cores suggest a focus on rasterization and real-time rendering. The Arc B770 belongs to the Battlemage generation under the Arc 7 series, succeeding the Alchemist architecture. Its 225 W TDP and 550 W suggested PSU contrast with the H800's 350 W TDP and 750 W suggested PSU.

Users with compute-heavy workloads that require massive memory capacity and tensor acceleration should rely on the NVIDIA H800. The data shows it leads decisively in FP32, FP16, memory size, memory bandwidth, shading units, and tensor core count. Users needing a display-capable graphics card with high pixel throughput and ray tracing support would find the Intel Arc B770 more aligned with those requirements. The absence of benchmark scores means no performance-per-watt or real-world application comparisons can be drawn from the database.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The NVIDIA H800 PCIe 80 GB records 51.22 TFLOPS in FP32, while the Intel Arc B770 records 19.66 TFLOPS. The H800 delivers roughly 2.6 times the single-precision throughput.

Q: How do the memory configurations compare?

A: The NVIDIA H800 uses 80 GB of HBM2e on a 5120-bit bus with 2.04 TB/s bandwidth. The Intel Arc B770 uses 16 GB of GDDR6 on a 256-bit bus with 512.0 GB/s bandwidth. The H800 has five times the capacity and four times the bandwidth.

Q: Does the Intel Arc B770 support display output?

A: Yes. The Arc B770 provides 1x HDMI 2.1a and 3x DisplayPort 2.1 outputs. The NVIDIA H800 PCIe 80 GB has no display outputs.

Q: What is the transistor density of each GPU?

A: The NVIDIA H800 has 80,000 million transistors on an 814 mm² die, giving a density of 98.3 million transistors per square millimeter. The Intel Arc B770 has an unknown transistor count on a 368 mm² die, so density cannot be calculated from the database.

Q: Which card has ray tracing cores?

A: The Intel Arc B770 includes 32 ray tracing cores. The NVIDIA H800 PCIe 80 GB lists no ray tracing cores in the database.

Q: What are the boost clock speeds?

A: The Intel Arc B770 boosts to 2400 MHz, while the NVIDIA H800 PCIe 80 GB boosts to 1755 MHz. The Intel part has a 47% higher boost clock.

Specification Differences

The two cards differ across nearly every measurable specification in the database. The NVIDIA H800 PCIe 80 GB uses the GH100 chip built on the Hopper architecture, while the Intel Arc B770 uses the BMG-G31 chip on the Xe2-HPG architecture. The H800 belongs to the Server Hopper generation, whereas the Arc B770 belongs to the Battlemage (Arc 7) generation.

Process nodes are identical at 5 nm with TSMC as the foundry for both. Die size differs substantially: the H800 measures 814 mm², the Arc B770 measures 368 mm². Transistor count is 80,000 million for the H800 and unknown for the Arc B770. Transistor density is 98.3 million per square millimeter for the H800 and null for the Arc B770.

Clock speeds diverge significantly. The H800 runs at 1095 MHz base and 1755 MHz boost, with memory at 1593 MHz (3.2 Gbps effective). The Arc B770 runs at 2100 MHz base and 2400 MHz boost, with memory at 2000 MHz (16 Gbps effective). Memory type, size, bus width, and bandwidth all differ: HBM2e 80 GB on 5120-bit with 2.04 TB/s versus GDDR6 16 GB on 256-bit with 512.0 GB/s.

Compute unit counts show the H800's scale advantage. It has 14,592 shading units, 456 TMUs, 24 ROPs, and 456 tensor cores. The Arc B770 has 4,096 shading units, 256 TMUs, 128 ROPs, and 32 ray tracing cores. Pixel rate favors the Arc B770 at 307.2 GPixel/s versus 42.12 GPixel/s for the H800. Texture rate favors the H800 at 800.3 GTexel/s versus 614.4 GTexel/s for the Arc B770.

FP32 performance is 51.22 TFLOPS for the H800 and 19.66 TFLOPS for the Arc B770. FP16 performance is 204.9 TFLOPS (4:1) for the H800 and 39.32 TFLOPS (2:1) for the Arc B770. TDP is 350 W for the H800 and 225 W for the Arc B770. Power connectors are 1x 16-pin for the H800 and 1x 6-pin plus 1x 8-pin for the Arc B770. Suggested PSU is 750 W for the H800 and 550 W for the Arc B770.

Bus interface differs: PCIe 5.0 x16 for the H800 versus PCIe 4.0 x16 for the Arc B770. Display outputs are absent on the H800, while the Arc B770 has 1x HDMI 2.1a and 3x DisplayPort 2.1. API support is null for the H800, while the Arc B770 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Physical dimensions are recorded only for the H800 at 268 mm length and 111 mm height. Both are dual-slot cards.

Release dates differ: the H800 launched in March 2023, the Arc B770 in December 2025. The H800's predecessor is Server Ada and its successor is Server Blackwell. The Arc B770's predecessor is Alchemist, with no successor listed. Production status is Active for the H800 and null for the Arc B770.

Architecture Differences

The NVIDIA H800 PCIe 80 GB is built on the Hopper architecture, NVIDIA's data center compute platform. It uses the GH100 chip, a large design with 80,000 million transistors on an 814 mm² die. The architecture emphasizes tensor operations, evidenced by 456 tensor cores and an FP16 throughput of 204.9 TFLOPS at a 4:1 ratio. Hopper targets server workloads, which aligns with the absence of display outputs and the PCIe 5.0 x16 interface. The H800's memory subsystem uses HBM2e, a high-bandwidth stacked memory design that provides 2.04 TB/s across a 5120-bit bus.

The Intel Arc B770 uses the Xe2-HPG architecture on the BMG-G31 chip. This is a graphics-focused design with 32 ray tracing cores, 128 ROPs, and a pixel rate of 307.2 GPixel/s. The architecture supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, indicating a consumer or workstation graphics orientation. The memory subsystem uses GDDR6 on a 256-bit bus, delivering 512.0 GB/s. The Arc B770's process node matches the H800 at 5 nm from TSMC, but the die is 368 mm², less than half the H800's size.

The shading unit counts reveal different design philosophies. The H800 has 14,592 shading units, more than three times the Arc B770's 4,096. The H800 also has 456 tensor cores, while the Arc B770 lists none. Conversely, the Arc B770 has ray tracing cores, which the H800 lacks. The H800's 456 TMUs outnumber the Arc B770's 256, but the Arc B770's 128 ROPs far exceed the H800's 24. This distribution suggests the H800 prioritizes compute throughput and texture processing, while the Arc B770 emphasizes rasterization output and ray tracing.

Clock behavior differs as well. The Arc B770 runs at significantly higher clocks, with a 2100 MHz base and 2400 MHz boost. The H800 runs at 1095 MHz base and 1755 MHz boost. The higher clock speeds on the Intel part partially compensate for its lower unit counts, but the raw compute numbers still favor the H800 by a wide margin. The H800's lower clocks likely reflect power management for sustained server workloads, while the Arc B770's higher clocks suit burst-oriented graphics tasks.

The H800's power delivery uses a single 16-pin connector with a 350 W TDP. The Arc B770 uses a 6-pin plus 8-pin configuration with a 225 W TDP. The H800 requires a 750 W PSU, while the Arc B770 asks for 550 W. The H800's larger power envelope supports its higher compute density, while the Arc B770's modest draw aligns with its smaller die and lower peak performance.

The H800 has no API support listed in the database, reinforcing its role as a compute accelerator rather than a graphics card. The Arc B770's full API support enables standard graphics workloads. The H800's dimensions are recorded at 268 mm length and 111 mm height, while the Arc B770's dimensions are not recorded. Both cards occupy dual-slot configurations. The H800's release date of March 2023 places it earlier in the product cycle, with a successor in Server Blackwell. The Arc B770's December 2025 release follows the Alchemist predecessor, with no successor yet recorded.