Intel Arc G3 vs NVIDIA H800 SXM5 Comparison

FAQ

Q: What are the core architectural identities of the Intel Arc G3 and the NVIDIA H800 SXM5?

A: The Intel Arc G3 is an integrated graphics processor built on the Xe3-LPG architecture, using Intel's 3 nm process and the Panther Lake chip. The NVIDIA H800 SXM5 is a discrete server module built on the Hopper architecture, using TSMC's 5 nm process and the GH100 chip.

Q: How do the two compare in terms of memory configuration?

A: The Intel Arc G3 uses system shared memory, with its memory type, bus width, and bandwidth all listed as system dependent. The NVIDIA H800 SXM5 uses 80 GB of HBM3 memory on a 5120-bit bus, delivering 3.36 TB/s of bandwidth.

Q: Which processor has more shading units and what does that imply?

A: The NVIDIA H800 SXM5 has 16,896 shading units, compared to the Intel Arc G3's 1,280. The recorded data shows a significant difference in raw shader throughput, which directly influences FP32 compute performance.

Q: What are the boost clock speeds for each?

A: The Intel Arc G3 boosts to 2400 MHz from a base of 300 MHz. The NVIDIA H800 SXM5 boosts to 1755 MHz from a base of 1095 MHz.

Q: Do both support ray tracing?

A: The Intel Arc G3 lists 10 dedicated ray tracing cores. The NVIDIA H800 SXM5 does not list any ray tracing cores in the database.

Q: What is the power situation for each unit?

A: The Intel Arc G3 is rated at 25 W TDP and uses no power connectors, as it is an integrated graphics processor. The NVIDIA H800 SXM5 is rated at 700 W TDP, uses an 8-pin EPS connector, and the database suggests a 1100 W power supply.

Architecture Differences

The Intel Arc G3 and NVIDIA H800 SXM5 represent two fundamentally different design philosophies. The Intel part is an integrated graphics processor (IGP) built on Intel's 3 nm process, using the Panther Lake chip and the Xe3-LPG architecture. It belongs to the Arc Graphics-M generation for Panther Lake. The NVIDIA H800 SXM5 is a discrete server module on TSMC's 5 nm process, using the GH100 chip and the Hopper architecture, part of the Server Hopper generation.

The transistor budgets tell a stark story. The Intel Arc G3 has an unknown transistor count and die size. The NVIDIA H800 SXM5 packs 80,000 million transistors on an 814 mm² die, with a transistor density of 98.3 million per mm². The difference in physical scale is enormous, and it reflects the target markets: one is a low-power integrated solution, the other is a high-capacity server accelerator.

The compute resources differ across every category. The Intel Arc G3 has 1,280 shading units, 40 texture mapping units, and 20 raster output units. The NVIDIA H800 SXM5 has 16,896 shading units, 528 texture mapping units, and 24 raster output units. The NVIDIA part also has 528 tensor cores, while the Intel part lists none. The Intel Arc G3 does have 10 ray tracing cores, but the NVIDIA H800 SXM5 does not list any ray tracing hardware.

Clock behavior also diverges. The Intel Arc G3 runs at a base of 300 MHz and boosts to 2400 MHz, a wide range typical of an integrated part that can idle very low. The NVIDIA H800 SXM5 has a base of 1095 MHz and a boost of 1755 MHz, a narrower range for a high-power module that stays closer to its operating frequency.

Memory architecture is another major split. The Intel Arc G3 uses system shared memory, meaning bandwidth and capacity are system dependent. The NVIDIA H800 SXM5 has a fixed 80 GB of HBM3 on a 5120-bit interface, with 3.36 TB/s of bandwidth. This is a dedicated, high-bandwidth pool, whereas the Intel part relies on whatever the host system provides.

API support differs as well. The Intel Arc G3 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The NVIDIA H800 SXM5 lists no DirectX, OpenGL, or Vulkan support in the database, consistent with a compute-focused server part. The Intel part also has display outputs that are portable device dependent, while the NVIDIA module has no display outputs at all.

Head-to-Head Benchmarks

The database shows no direct head-to-head benchmark entries between the Intel Arc G3 and the NVIDIA H800 SXM5, and neither unit has recorded average benchmark scores. Both sit at the 50th percentile versus all GPUs. This means the comparison must be drawn from the recorded specification data and the theoretical throughput figures.

The compute throughput figures show a dominant lead for the NVIDIA part. In FP32, the NVIDIA H800 SXM5 delivers 59.30 TFLOPS, while the Intel Arc G3 delivers 6.144 TFLOPS. That is roughly 9.6 times higher for the NVIDIA module. In FP16, the NVIDIA part reaches 237.2 TFLOPS using a 4:1 ratio, while the Intel part reaches 12.29 TFLOPS using a 2:1 ratio. The NVIDIA lead in FP16 is even larger, approaching 19 times.

Texture and pixel rates follow similar patterns. The NVIDIA H800 SXM5 has a texture rate of 926.6 GTexel/s, versus 96.00 GTexel/s for the Intel Arc G3. The NVIDIA part also leads in pixel rate, but by a much smaller margin: 42.12 GPixel/s versus 48.00 GPixel/s. Interestingly, the Intel Arc G3 actually has a higher pixel rate than the NVIDIA H800 SXM5, despite having far fewer shading units and a lower overall power envelope. This is due to the NVIDIA part having only 24 ROPs, while the Intel part has 20 ROPs at a much higher boost clock.

The memory bandwidth comparison is not a direct numeric race, since the Intel Arc G3 uses system shared memory. The NVIDIA H800 SXM5 has a fixed 3.36 TB/s of bandwidth, which is a massive pool for any workload that depends on data movement. The Intel part's bandwidth is listed as system dependent, so its effective throughput would vary with the host platform.

The shading unit count difference is also notable. The NVIDIA H800 SXM5 has 16,896 shading units, over 13 times the Intel Arc G3's 1,280. This, combined with the higher FP32 output, indicates that the NVIDIA part is designed for sustained, high-throughput compute tasks, while the Intel part targets lower-power integrated scenarios.

Specification Differences

The two processors differ in nearly every recorded specification field.

The Intel Arc G3 uses a 3 nm process from Intel, while the NVIDIA H800 SXM5 uses a 5 nm process from TSMC. The NVIDIA part has 80,000 million transistors on an 814 mm² die; the Intel part has unknown figures. The NVIDIA part has a transistor density of 98.3 million per mm², while the Intel part has no density figure.

Clock speeds differ: the Intel Arc G3 has a base of 300 MHz and a boost of 2400 MHz, while the NVIDIA H800 SXM5 has a base of 1095 MHz and a boost of 1755 MHz. Memory clocks are also different, with the Intel part using system shared memory and the NVIDIA part running at 1313 MHz with 5.3 Gbps effective.

Memory capacity, type, bus width, and bandwidth all differ. The Intel Arc G3 uses system shared memory in all four fields. The NVIDIA H800 SXM5 has 80 GB of HBM3, a 5120-bit bus, and 3.36 TB/s bandwidth.

Compute unit counts differ: the Intel Arc G3 has 1,280 shading units, 40 TMUs, 20 ROPs, and 10 RT cores. The NVIDIA H800 SXM5 has 16,896 shading units, 528 TMUs, 24 ROPs, no RT cores, and 528 tensor cores.

Throughput figures differ: the Intel Arc G3 has a pixel rate of 48.00 GPixel/s and a texture rate of 96.00 GTexel/s. The NVIDIA H800 SXM5 has a pixel rate of 42.12 GPixel/s and a texture rate of 926.6 GTexel/s. FP32 is 6.144 TFLOPS for Intel and 59.30 TFLOPS for NVIDIA. FP16 is 12.29 TFLOPS (2:1) for Intel and 237.2 TFLOPS (4:1) for NVIDIA.

Power and physical specifications differ: the Intel Arc G3 has a TDP of 25 W, is an IGP slot width, uses no power connectors, and has no suggested PSU. The NVIDIA H800 SXM5 has a TDP of 700 W, is an SXM Module, uses an 8-pin EPS connector, and has a suggested PSU of 1100 W.

Bus interface and outputs differ: the Intel Arc G3 uses an IGP bus interface and has portable device dependent display outputs. The NVIDIA H800 SXM5 uses PCIe 5.0 x16 and has no display outputs.

API support differs: the Intel Arc G3 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The NVIDIA H800 SXM5 lists no API support.

Release dates and generations differ: the Intel Arc G3 was released on May 31, 2026, while the NVIDIA H800 SXM5 was released on March 20, 2023. The NVIDIA part has a predecessor, Server Ada, and a successor, Server Blackwell. The Intel part has neither listed.

Where Each One Wins

The Intel Arc G3 wins in scenarios that favor low power and integration. Its 25 W TDP makes it suitable for compact, portable devices where power draw is a primary constraint. It has display outputs, though portable device dependent, and supports modern graphics APIs including DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. It also has dedicated ray tracing cores, which the NVIDIA H800 SXM5 lacks. Its higher pixel rate of 48.00 GPixel/s versus the NVIDIA part's 42.12 GPixel/s suggests it can handle certain rasterization workloads efficiently relative to its size.

The NVIDIA H800 SXM5 wins in raw compute and memory bandwidth. Its FP32 output of 59.30 TFLOPS and FP16 output of 237.2 TFLOPS place it in a completely different performance class. Its 80 GB of HBM3 memory with 3.36 TB/s bandwidth provides a vast data pool for large-scale workloads. The presence of 528 tensor cores indicates a focus on matrix operations, which the Intel part cannot match. Its 926.6 GTexel/s texture rate is nearly ten times the Intel Arc G3's 96.00 GTexel/s.

The NVIDIA H800 SXM5 also wins on shading unit count, with 16,896 versus 1,280, and on transistor budget, with 80,000 million transistors versus unknown for the Intel part. Its 5 nm TSMC process, while larger than Intel's 3 nm node, still allows for a massive compute cluster.

The database shows no direct benchmark wins for either side, so the split is based on specification-level advantages. The Intel Arc G3 is the only one of the two with ray tracing cores, display outputs, and consumer graphics API support. The NVIDIA H800 SXM5 is the only one with tensor cores, a fixed large memory pool, and a server-oriented form factor.

The Verdict

The data describes two processors built for entirely different roles. The Intel Arc G3 is an integrated graphics solution for portable systems, with a 25 W TDP, no power connectors, and system shared memory. The NVIDIA H800 SXM5 is a 700 W server module with a dedicated 80 GB HBM3 pool and a suggested 1100 W power supply.

For users needing graphics output, modern API support, and ray tracing in a low-power integrated package, the Intel Arc G3 is the only choice between the two. It supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, has 10 ray tracing cores, and displays output through portable device dependent connectors.

For compute-heavy workloads that require massive FP32 or FP16 throughput, tensor operations, and high memory bandwidth, the NVIDIA H800 SXM5 is the clear selection. Its 59.30 TFLOPS FP32, 237.2 TFLOPS FP16, 528 tensor cores, and 3.36 TB/s memory bandwidth place it in a performance tier that the Intel Arc G3 cannot approach.

The release timeline also matters. The NVIDIA H800 SXM5 launched in March 2023 and has defined successors in Server Ada and Server Blackwell. The Intel Arc G3 launched in May 2026 with no listed predecessor or successor. This suggests the NVIDIA part is an established server product, while the Intel part is a newer integrated solution.

Neither unit has recorded benchmark scores or direct head-to-head results in the database. The analysis rests on specification data and theoretical throughput. Based on that data, the Intel Arc G3 wins on integration, power efficiency, and graphics feature set. The NVIDIA H800 SXM5 wins on raw compute, memory capacity, and bandwidth. The choice depends entirely on whether the workload is integrated graphics or server-scale compute.