NVIDIA GeForce RTX 4070 Mobile vs NVIDIA H20 Comparison

The Verdict

The database profile for the NVIDIA GeForce RTX 4070 Mobile and the NVIDIA H20 reveals two fundamentally different products. The RTX 4070 Mobile is a laptop GPU with a full set of recorded benchmark scores, while the H20 is a server accelerator with no entry in the benchmark database. The recorded data indicates the RTX 4070 Mobile has an average benchmark score of 27435, placing it in the 73rd percentile of all GPUs. The H20 shows an average benchmark score of 0 and sits in the 50th percentile, though this is entirely due to the absence of recorded measurements rather than a representation of its theoretical capability. Anyone selecting between these two parts must look at the intended deployment environment: the RTX 4070 Mobile is for portable systems with display outputs, the H20 is for server racks with no display outputs.

Where Each One Wins

The RTX 4070 Mobile wins in every measured category simply because it has recorded data. Its Geekbench OpenCL score of 109197 and Geekbench Vulkan score of 108367 show strong compute performance through those APIs. The Passmark suite shows a G3D score of 19587, a GPU Compute score of 8399, and DirectX scores ranging from 85 (DirectX 12) to 223 (DirectX 9). The H20 has no benchmark entries, so its wins are entirely based on architectural specifications rather than measured results. The H20 holds advantages in raw hardware resources: 96 GB of HBM3 memory versus 8 GB of GDDR6, a 6144-bit memory bus versus 128-bit, 4.03 TB/s of memory bandwidth versus 256.0 GB/s, 9984 shading units versus 4608, and 312 tensor cores versus 144. The H20 also has higher clock speeds with a base of 1830 MHz and boost of 1980 MHz compared to 1395 MHz and 1695 MHz on the RTX 4070 Mobile. The H20 delivers 39.54 TFLOPS of FP32 performance versus 15.62 TFLOPS, and 79.07 TFLOPS of FP16 versus 15.62 TFLOPS.

Architecture Differences

The RTX 4070 Mobile uses the AD106 chip built on Ada Lovelace architecture, manufactured on a 5 nm process at TSMC. It contains 22,900 million transistors on a die size of 188 mm², giving a transistor density of 121.8M per mm². The H20 uses the GH100 chip built on Hopper architecture, also on a 5 nm TSMC process, but with 80,000 million transistors on a much larger 814 mm² die, resulting in a lower density of 98.3M per mm². The RTX 4070 Mobile belongs to the GeForce 40 Mobile generation with a predecessor of GeForce 30 Mobile and successor of GeForce 50 Mobile. The H20 belongs to the Server Hopper (Hxx) generation with a predecessor of Server Ada and successor of Server Blackwell. The RTX 4070 Mobile has 36 RT cores, while the H20 reports no RT core count in the database. Both have tensor cores, with 144 on the mobile part and 312 on the server part. The RTX 4070 Mobile supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, while the H20 shows N/A for all three APIs. The RTX 4070 Mobile uses a PCIe 4.0 x8 interface, while the H20 uses PCIe 5.0 x16. The mobile GPU has a TDP of 115 W and is listed as an IGP with no power connectors, while the H20 has a TDP of 500 W and is an SXM Module with a suggested PSU of 900 W. The H20 has no display outputs, while the RTX 4070 Mobile has portable device dependent outputs. The RTX 4070 Mobile was released on 2023-01-02, and the H20 on 2024-01-31.

The memory subsystems are vastly different. The RTX 4070 Mobile uses 8 GB of GDDR6 with a 128-bit bus and 256.0 GB/s bandwidth, running at 2000 MHz with 16 Gbps effective speed. The H20 uses 96 GB of HBM3 with a 6144-bit bus and 4.03 TB/s bandwidth, running at 1313 MHz with 5.3 Gbps effective speed. The pixel rate on the RTX 4070 Mobile is 81.36 GPixel/s versus 47.52 GPixel/s on the H20. The texture rate is 244.1 GTexel/s on the mobile part versus 617.8 GTexel/s on the server part. The H20 has 312 TMUs versus 144 on the RTX 4070 Mobile, but only 24 ROPs versus 48.

FAQ

Q: Which GPU has more memory bandwidth?

A: The NVIDIA H20 has 4.03 TB/s of bandwidth from its 96 GB HBM3 memory with a 6144-bit bus. The RTX 4070 Mobile has 256.0 GB/s from 8 GB GDDR6 with a 128-bit bus.

Q: Does the H20 support DirectX?

A: The database records N/A for DirectX, OpenGL, and Vulkan support on the H20. The RTX 4070 Mobile supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: How do the FP32 performances compare?

A: The H20 delivers 39.54 TFLOPS of FP32 performance, which is 2.5 times the 15.62 TFLOPS of the RTX 4070 Mobile.

Q: What is the transistor count difference?

A: The H20 uses 80,000 million transistors on its GH100 chip, while the RTX 4070 Mobile uses 22,900 million transistors on its AD106 chip.

Q: Which GPU has a higher boost clock?

A: The H20 has a boost clock of 1980 MHz, compared to 1695 MHz on the RTX 4070 Mobile. The H20 also has a higher base clock at 1830 MHz versus 1395 MHz.

Q: What are the power requirements?

A: The RTX 4070 Mobile has a TDP of 115 W and uses no power connectors. The H20 has a TDP of 500 W and lists a suggested PSU of 900 W.

Head-to-Head Benchmarks

There are no recorded head-to-head benchmark entries between these two GPUs in the database. The RTX 4070 Mobile has a full benchmark suite, while the H20 has none. The nearest rivals for the RTX 4070 Mobile provide context for its performance. The AMD Radeon RX 6700 XT has an average score of 27425, which is exactly 0% different from the RTX 4070 Mobile's 27435. The NVIDIA GeForce RTX 3090 scores 27565, putting it 0.5% ahead of the mobile part. The NVIDIA RTX PRO 4000 Blackwell scores 27135, which is 1.1% behind. The AMD Radeon Pro Vega 20 scores 27839, putting it 1.5% ahead. This places the RTX 4070 Mobile in the same performance band as a desktop RTX 3090, a desktop-class RX 6700 XT, and workstation GPUs. The H20 has no nearest rivals listed and no benchmark scores, so its relative performance cannot be derived from the database.

The biggest wins for the RTX 4070 Mobile come from its benchmark presence. Its Geekbench OpenCL score of 109197 and Vulkan score of 108367 demonstrate strong API-level compute. Its Passmark G3D score of 19587 and GPU Compute score of 8399 further indicate substantial graphics and compute throughput. The DirectX 9 score of 223 and DirectX 11 score of 179 show solid legacy API performance, while the DirectX 12 score of 85 and DirectX 10 score of 116 are lower. The G2D score of 763 reflects 2D graphics capability.

The H20's architectural wins are substantial but unmeasured. Its FP16 performance of 79.07 TFLOPS is more than five times the 15.62 TFLOPS of the RTX 4070 Mobile, and this 2:1 ratio for FP16 over FP32 on the H20 indicates a design optimized for mixed-precision workloads. The H20's texture rate of 617.8 GTexel/s is 2.5 times that of the RTX 4070 Mobile, and its 312 tensor cores more than double the 144 on the mobile part. The H20's 96 GB memory capacity is twelve times larger than the 8 GB on the RTX 4070 Mobile. The server part has a higher TDP of 500 W versus 115 W, which aligns with its SXM Module form factor and 900 W suggested PSU. The RTX 4070 Mobile has a higher pixel rate of 81.36 GPixel/s versus 47.52 GPixel/s, and more ROPs at 48 versus 24, which suggests the mobile part is better suited for rasterization-heavy graphics work despite its smaller overall compute footprint.