Intel Arc A380M vs NVIDIA H20 Comparison

Head-to-Head Benchmarks

The database contains no direct benchmark scores for either the Intel Arc A380M or the NVIDIA H20. Both GPUs show an average benchmark score of zero, and the nearest rival data is empty. As a result, no head-to-head performance comparisons can be drawn from recorded measurements. The percentile placement for both cards sits at 50 against all GPUs, indicating the database has not yet generated a meaningful performance distribution for either product. Without recorded scores, the analysis must rely on architectural and specification differences rather than measured frame rates or compute results.

The absence of benchmark data does not imply equal performance. The raw specification gap between the two is substantial. The NVIDIA H20 delivers 39.54 TFLOPS of FP32 compute, while the Intel Arc A380M produces 4.096 TFLOPS, a difference of roughly 9.6 times. In FP16, the H20 reaches 79.07 TFLOPS versus 8.192 TFLOPS for the A380M, again a near 9.6 times gap. These figures come directly from the specification sheet, not from synthetic tests, so they represent theoretical peak throughput rather than real-world application results. The H20 also carries 312 tensor cores, while the A380M lists none, meaning any AI or deep learning workload would favor the NVIDIA part by an enormous margin on paper.

Memory bandwidth tells a similar story. The H20 uses HBM3 across a 6144-bit bus, delivering 4.03 TB/s. The A380M uses GDDR6 on a 96-bit bus, yielding 186.0 GB/s. That is a 21.7 times difference in raw bandwidth. The H20 also has 96 GB of memory versus 6 GB, a 16 times capacity advantage. For large model inference or data-parallel workloads, the H20 operates in a different class entirely. The A380M, by contrast, targets mobile graphics with a 35 W TDP and a 96-bit memory interface, which explains its modest bandwidth and capacity.

The pixel rate is one area where the A380M shows a slight edge: 64.00 GPixel/s against 47.52 GPixel/s for the H20. Texture rate goes the other way, with the H20 at 617.8 GTexel/s versus 128.0 GTexel/s for the A380M. These numbers reflect the H20's compute-oriented design, which prioritizes tensor throughput and texture processing over rasterization output. The A380M, with 32 ROPs, can push more pixels per clock despite having far fewer shading units, but this advantage is unlikely to matter in any workload the H20 is designed for.

Architecture Differences

The two GPUs come from entirely different architectural lineages. The Intel Arc A380M uses the DG2-128 chip built on Xe-HPG architecture, part of the Alchemist generation for Arc 3 Mobile. It is fabricated on a 6 nm process at TSMC, with 7,200 million transistors on a 157 mm² die. Transistor density reaches 45.9 million per square millimeter. The NVIDIA H20 uses the GH100 chip on Hopper architecture, from the Server Hopper generation. It is built on a 5 nm process, also at TSMC, with 80,000 million transistors on an 814 mm² die. Transistor density is 98.3 million per square millimeter, more than double the A380M's density.

Clock speeds differ in interesting ways. The A380M has a base clock of 1550 MHz and a boost of 2000 MHz. The H20 has a base clock of 1830 MHz and a boost of 1980 MHz. The H20 starts higher but boosts lower, reflecting its server-oriented power envelope and thermal constraints. The A380M's memory runs at 1937 MHz with 15.5 Gbps effective, while the H20's memory runs at 1313 MHz with 5.3 Gbps effective. The HBM3 interface compensates for the lower clock with a vastly wider bus.

Shading unit counts differ by an order of magnitude. The H20 has 9984 shading units, 312 TMUs, and 24 ROPs. The A380M has 1024 shading units, 64 TMUs, and 32 ROPs. The H20 also integrates 312 tensor cores, while the A380M has none. Ray tracing cores appear only on the A380M, with 8 units; the H20 lists no RT cores. This suggests the A380M retains some graphics-focused features for mobile gaming, while the H20 strips out display outputs entirely and dedicates silicon to compute.

The form factors are equally divergent. The A380M uses an MXM Module with an MXM-A (3.1) bus interface, designed for laptops and portable devices. Display outputs are listed as portable device dependent. The H20 uses an SXM Module with PCIe 5.0 x16, has no display outputs, and requires a suggested PSU of 900 W. The TDP gap is enormous: 35 W for the A380M versus 500 W for the H20. These are not competing products in any practical sense; they serve different markets and physical environments.

The Verdict

The recorded data shows two GPUs with no overlap in intended use. The Intel Arc A380M is a low-power mobile graphics solution with 6 GB of GDDR6, 35 W TDP, and support for DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. The NVIDIA H20 is a server accelerator with 96 GB of HBM3, 500 W TDP, and no graphics API support (DirectX, OpenGL, and Vulkan all listed as N/A). Any comparison that treats them as rivals would be misleading. The H20 exists for compute, specifically tensor-heavy workloads, while the A380M exists for rendering on portable devices.

From the specification data alone, the H20 dominates in every compute metric: FP32, FP16, texture rate, memory bandwidth, memory capacity, and tensor core count. The A380M wins on pixel rate, lower power draw, and graphics API compatibility. The release dates also differ, with the A380M appearing on 2023-01-23 and the H20 on 2024-01-31. The H20's predecessor is listed as Server Ada and its successor as Server Blackwell, confirming its place in a server product line. The A380M has no predecessor or successor listed.

The verdict is straightforward: the H20 is for data center compute and AI inference, while the A380M is for mobile graphics. The 14 times difference in transistor count (80,000 million versus 7,200 million) and the 23 times difference in die size (814 mm² versus 157 mm²) make any direct performance comparison moot. The H20 is physically larger, consumes more power, and requires a 900 W PSU recommendation. The A380M fits into an MXM slot and runs on 35 W.

FAQ

Q: Which GPU has more FP32 compute power?

A: The NVIDIA H20 delivers 39.54 TFLOPS of FP32, while the Intel Arc A380M delivers 4.096 TFLOPS. The H20 is roughly 9.6 times faster in this metric.

Q: Does the Intel Arc A380M support DirectX 12 Ultimate?

A: Yes. The A380M lists DirectX 12 Ultimate (12_2) as a supported API, along with OpenGL 4.6 and Vulkan 1.4. The NVIDIA H20 lists N/A for all three graphics APIs.

Q: What is the memory configuration of each GPU?

A: The A380M has 6 GB of GDDR6 on a 96-bit bus with 186.0 GB/s bandwidth. The H20 has 96 GB of HBM3 on a 6144-bit bus with 4.03 TB/s bandwidth.

Q: How do the power requirements compare?

A: The A380M has a TDP of 35 W and uses an MXM Module form factor. The H20 has a TDP of 500 W, uses an SXM Module, and has a suggested PSU of 900 W.

Q: Which GPU has tensor cores?

A: The NVIDIA H20 includes 312 tensor cores. The Intel Arc A380M lists no tensor cores.

Q: What are the process nodes for each chip?

A: The A380M uses a 6 nm process at TSMC with 7,200 million transistors. The H20 uses a 5 nm process at TSMC with 80,000 million transistors.

Where Each One Wins

The Intel Arc A380M wins in pixel throughput. Its 64.00 GPixel/s exceeds the H20's 47.52 GPixel/s, despite having only 1024 shading units versus 9984. The A380M also wins on power efficiency, with a 35 W TDP that allows deployment in portable devices, and it is the only one of the two with graphics API support. The 8 ray tracing cores give it a rasterization feature set that the H20 lacks entirely. The A380M's 2000 MHz boost clock is higher than the H20's 1980 MHz boost, though this is a minor point given the compute disparity.

The NVIDIA H20 wins in every compute-heavy category. FP32 throughput is 39.54 TFLOPS versus 4.096 TFLOPS. FP16 throughput is 79.07 TFLOPS versus 8.192 TFLOPS. Texture rate is 617.8 GTexel/s versus 128.0 GTexel/s. Memory bandwidth is 4.03 TB/s versus 186.0 GB/s. Memory capacity is 96 GB versus 6 GB. The 312 tensor cores give it a dedicated path for AI workloads, while the A380M has no equivalent hardware. The H20's 5 nm process also delivers higher transistor density at 98.3M per mm² versus 45.9M per mm², reflecting a more advanced manufacturing node.

The H20 also wins on raw transistor count, die size, and memory bus width. The 6144-bit bus is 64 times wider than the A380M's 96-bit bus. The HBM3 memory type offers dramatically higher bandwidth per pin compared to GDDR6. The H20's PCIe 5.0 x16 interface supports high-throughput host communication, while the A380M relies on MXM-A (3.1), which is designed for laptop integration. The H20's 24 ROPs are fewer than the A380M's 32 ROPs, but this is irrelevant for a server part with no display outputs.

Specification Differences

The two GPUs differ in nearly every specification field. The process node is 6 nm for the A380M versus 5 nm for the H20. Transistor count is 7,200 million versus 80,000 million, a 11.1 times difference. Die size is 157 mm² versus 814 mm², a 5.2 times difference. Transistor density is 45.9M per mm² versus 98.3M per mm², a 2.1 times difference.

Clock speeds: the A380M runs at 1550 MHz base and 2000 MHz boost. The H20 runs at 1830 MHz base and 1980 MHz boost. Memory clocks: 1937 MHz (15.5 Gbps effective) for the A380M versus 1313 MHz (5.3 Gbps effective) for the H20.

Memory: the A380M has 6 GB of GDDR6, 96-bit bus, 186.0 GB/s bandwidth. The H20 has 96 GB of HBM3, 6144-bit bus, 4.03 TB/s bandwidth.

Core configuration: the A380M has 1024 shading units, 64 TMUs, 32 ROPs, and 8 RT cores. The H20 has 9984 shading units, 312 TMUs, 24 ROPs, 312 tensor cores, and no listed RT cores.

Rates: the A380M delivers 64.00 GPixel/s and 128.0 GTexel/s. The H20 delivers 47.52 GPixel/s and 617.8 GTexel/s.

Compute: the A380M delivers 4.096 TFLOPS FP32 and 8.192 TFLOPS FP16. The H20 delivers 39.54 TFLOPS FP32 and 79.07 TFLOPS FP16.

Power and form factor: the A380M has a 35 W TDP and uses an MXM Module with MXM-A (3.1) bus. The H20 has a 500 W TDP, uses an SXM Module with PCIe 5.0 x16, and has a suggested PSU of 900 W.

Display and APIs: the A380M has portable device dependent outputs and supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. The H20 has no outputs and lists N/A for all graphics APIs.

Release dates: the A380M was released on 2023-01-23. The H20 was released on 2024-01-31. The H20 lists Server Ada as predecessor and Server Blackwell as successor; the A380M has no predecessor or successor. Production status is Active for both. Neither has a launch MSRP in the database.