Intel Arc G3 Extreme vs NVIDIA H20 NVL16 Comparison

Where Each One Wins

The recorded data shows two fundamentally different products with almost no overlap in intended use. The Intel Arc G3 Extreme is an integrated graphics processor built into the Panther Lake mobile platform, while the NVIDIA H20 NVL16 is a server-grade accelerator module. The Intel part wins in portability and low-power integration; the NVIDIA part wins in raw compute, memory capacity, and bandwidth.

On compute throughput, the NVIDIA H20 NVL16 dominates every measured metric. Its FP32 output of 39.54 TFLOPS is more than five times the Intel Arc G3 Extreme's 7.680 TFLOPS. The FP16 figures follow the same pattern: 79.07 TFLOPS versus 15.36 TFLOPS. Texture rate also heavily favors NVIDIA, with 617.8 GTexel/s against Intel's 120.0 GTexel/s. The only pixel-rate comparison is close: the Intel part records 60.00 GPixel/s, while the NVIDIA part records 47.52 GPixel/s, giving Intel a narrow win in that specific metric.

Memory separates the two decisively. The NVIDIA H20 NVL16 carries 96 GB of HBM3 on a 6144-bit bus with 4.03 TB/s of bandwidth. The Intel Arc G3 Extreme uses system-shared memory, with bandwidth described as system dependent. That difference alone defines their respective roles: the NVIDIA module is built for large datasets and sustained throughput, while the Intel GPU relies on whatever system memory the host provides.

Power and physical integration also split the two. The Intel Arc G3 Extreme is an IGP with an 80 W TDP, no power connectors, and no slot width. The NVIDIA H20 NVL16 is an SXM module with a 400 W TDP and an 800 W suggested PSU. The Intel part outputs to portable-device-dependent displays; the NVIDIA part has no display outputs at all. The Intel GPU is a client-side graphics solution; the NVIDIA module is a compute accelerator with no video purpose.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The NVIDIA H20 NVL16 delivers 39.54 TFLOPS, which is about 5.1 times the 7.680 TFLOPS recorded for the Intel Arc G3 Extreme.

Q: How much memory does each GPU have?

A: The NVIDIA H20 NVL16 has 96 GB of HBM3 on a 6144-bit bus. The Intel Arc G3 Extreme uses system-shared memory, with no dedicated VRAM and bandwidth dependent on the host system.

Q: What are the power requirements of each?

A: The Intel Arc G3 Extreme has an 80 W TDP and requires no power connectors. The NVIDIA H20 NVL16 has a 400 W TDP and lists a suggested PSU of 800 W.

Q: Does either GPU support display outputs?

A: The Intel Arc G3 Extreme has display outputs described as portable-device dependent. The NVIDIA H20 NVL16 has no display outputs.

Q: Which GPU has higher pixel fill rate?

A: The Intel Arc G3 Extreme records 60.00 GPixel/s, ahead of the NVIDIA H20 NVL16's 47.52 GPixel/s.

Q: What is the process node for each chip?

A: The Intel Arc G3 Extreme uses a 3 nm process at Intel. The NVIDIA H20 NVL16 uses a 5 nm process at TSMC.

Head-to-Head Benchmarks

The head-to-head benchmark list is empty in the database, so no direct application-level scores exist for these two products. However, the recorded specification data allows a quantitative comparison of compute and memory capabilities.

The largest win for the NVIDIA H20 NVL16 is in memory bandwidth. Its 4.03 TB/s is a fixed hardware figure, while the Intel Arc G3 Extreme's bandwidth is system dependent with no fixed number. The 96 GB capacity versus system-shared memory further cements NVIDIA's advantage for workloads that exceed local memory limits.

In FP32 throughput, NVIDIA leads by 31.86 TFLOPS (39.54 minus 7.680). In FP16, NVIDIA leads by 63.71 TFLOPS (79.07 minus 15.36). The texture rate difference is 497.8 GTexel/s (617.8 minus 120.0). These are large margins, indicating that the NVIDIA module processes shader and texture work at roughly five times the rate of the Intel part.

The Intel Arc G3 Extreme records a pixel rate of 60.00 GPixel/s, which is 12.48 GPixel/s higher than the NVIDIA H20 NVL16's 47.52 GPixel/s. This suggests the Intel part has a higher per-clock pixel output capability, despite its far lower overall compute. The NVIDIA module's 24 ROPs match the Intel part's 24 ROPs, but the Intel GPU achieves a higher pixel rate due to its higher boost clock of 2500 MHz against NVIDIA's 1980 MHz.

Clock speeds also differ substantially. The Intel part has a base clock of 300 MHz and a boost of 2500 MHz. The NVIDIA part has a base of 1830 MHz and a boost of 1980 MHz. The Intel GPU's boost clock is 520 MHz higher, but its base clock is 1530 MHz lower. The NVIDIA module sustains a much higher floor, which matters for continuous server workloads.

Specification Differences

The two GPUs differ across nearly every recorded specification. The Intel Arc G3 Extreme uses the Panther Lake chip with Xe3-LPG architecture, while the NVIDIA H20 NVL16 uses the GH100 chip with Hopper architecture. Process nodes differ: Intel at 3 nm, NVIDIA at 5 nm. The Intel foundry is Intel; the NVIDIA foundry is TSMC.

Memory specifications are completely different. The Intel part uses system-shared memory with a system-dependent bandwidth. The NVIDIA part has 96 GB of HBM3, a 6144-bit bus, and 4.03 TB/s of bandwidth. Memory clock also differs: the NVIDIA module runs at 1313 MHz with 5.3 Gbps effective, while the Intel part has no fixed memory clock.

Shading units: 1536 for Intel versus 9984 for NVIDIA. TMUs: 48 versus 312. ROPs are equal at 24. The Intel part has 12 ray tracing cores, while the NVIDIA part lists no RT cores but has 312 tensor cores; the Intel part lists no tensor cores. The NVIDIA module's 312 tensor cores align with its 312 TMUs, indicating a design built for tensor-heavy operations.

Power and form factor differ sharply. The Intel part is an IGP with an 80 W TDP, no power connectors, and no suggested PSU. The NVIDIA part is an SXM module with a 400 W TDP and an 800 W suggested PSU. The bus interface is IGP for Intel and PCIe 5.0 x16 for NVIDIA. Display outputs are portable-device dependent for Intel and none for NVIDIA.

API support also diverges. The Intel part supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The NVIDIA part lists N/A for DirectX, OpenGL, and Vulkan, reflecting its compute-only role.

Release dates differ: the Intel Arc G3 Extreme is dated 2026-05-31, while the NVIDIA H20 NVL16 is dated 2025-09-01. The NVIDIA predecessor is Server Ada and its successor is Server Blackwell. The Intel part has no listed predecessor or successor.

Architecture Differences

The Intel Arc G3 Extreme is built on Xe3-LPG, a low-power graphics architecture derived from Intel's Xe3 family, and is part of the Arc Graphics-M generation for Panther Lake. It uses a 3 nm process at Intel and integrates 1536 shading units with 12 ray tracing cores. The architecture is designed for client devices, as shown by its IGP form factor and portable-device-dependent display outputs. The presence of DirectX 12 Ultimate and Vulkan 1.4 support indicates a full-featured graphics pipeline for consumer applications.

The NVIDIA H20 NVL16 is built on Hopper, a server compute architecture, using the GH100 chip. It uses a 5 nm process at TSMC and packs 9984 shading units plus 312 tensor cores. The transistor count is 80,000 million on an 814 mm² die, giving a transistor density of 98.3M per mm². The Intel part's transistor count and die size are unknown. Hopper is designed for accelerated computing, not graphics output, which explains the lack of display outputs and the N/A API entries for graphics libraries.

The memory architectures reflect their different purposes. The Intel part shares system memory, which works for low-power integrated graphics where data transfer distances are short and capacity is flexible. The NVIDIA part uses 96 GB of HBM3 with a 6144-bit bus, a configuration that maximizes bandwidth for large model weights and datasets. The NVIDIA module's 4.03 TB/s bandwidth is a fixed hardware capability; the Intel part's bandwidth varies with the host system.

Clock behavior also shows architectural priorities. The Intel part has a low 300 MHz base and a high 2500 MHz boost, typical of a power-managed mobile GPU that ramps up for bursty graphics loads. The NVIDIA part has a high 1830 MHz base and a modest 1980 MHz boost, reflecting a part that must sustain heavy compute continuously without relying on aggressive boost behavior.

The Verdict

The data points to a clear split. The Intel Arc G3 Extreme is for portable client devices that need integrated graphics with modern API support, ray tracing, and display output. Its 80 W TDP, IGP form factor, and system-shared memory make it suitable for thin-and-light systems where dedicated graphics is impractical. Its 60.00 GPixel/s pixel rate and 7.680 TFLOPS FP32 are modest but consistent with an integrated part.

The NVIDIA H20 NVL16 is for server environments that require massive memory and compute throughput. Its 96 GB of HBM3, 4.03 TB/s bandwidth, and 39.54 TFLOPS FP32 are server-class figures. The 400 W TDP and SXM form factor require a server chassis with appropriate power delivery, and the suggested 800 W PSU confirms that expectation. The lack of display outputs and graphics API support means it is not a graphics card in the traditional sense; it is a compute accelerator.

The Intel part wins only in pixel rate and power efficiency. The NVIDIA part wins in FP32, FP16, texture rate, memory capacity, memory bandwidth, shading units, and tensor core count. The NVIDIA module's FP32 output is 5.1 times higher, and its FP16 output is 5.1 times higher as well. The texture rate is 5.1 times higher. These ratios are consistent across compute metrics, indicating a uniform scaling of the shader and texture pipelines.

For users whose workloads fit in system memory and require graphics output, the Intel Arc G3 Extreme provides a complete, low-power solution. For users processing large datasets that exceed system memory, the NVIDIA H20 NVL16 is the only one of the two with sufficient capacity and bandwidth. The choice is not between two competing products; it is between an integrated client GPU and a server accelerator. The benchmark database records no common test scores, and the specification gap is wide enough that no workload would likely favor both. The NVIDIA module is the stronger compute device by every numerical measure except pixel rate, where the Intel part leads by 12.48 GPixel/s.