NVIDIA GeForce RTX 4080 SUPER vs NVIDIA H20 NVL16 Comparison

Where Each One Wins

The recorded data presents an unusual comparison: the NVIDIA GeForce RTX 4080 SUPER has a complete benchmark suite with ten recorded tests, while the NVIDIA H20 NVL16 has no benchmark entries in the database. This means the RTX 4080 SUPER wins every measured category by default, but the H20 NVL16 occupies a fundamentally different position in the product stack, one defined by server deployment rather than desktop rendering.

The RTX 4080 SUPER delivers its strongest results in compute and graphics workloads. Its Passmark G3D score of 34245 places it in the 86th percentile of all GPUs tracked in the database, with an average benchmark score of 54209. The Geekbench Vulkan result of 260075 and OpenCL result of 219065 reinforce its capability across both graphics and general-purpose compute paths. The 3DMark Steel Nomad DX12 test records a score of 6600, showing strong DirectX 12 performance.

The H20 NVL16 has zero recorded benchmarks, so its "wins" in this comparison are architectural and capacity-based rather than performance-based. It carries 96 GB of HBM3 memory with a 6144-bit bus and 4.03 TB/s bandwidth, which dwarfs the RTX 4080 SUPER's 16 GB GDDR6X on a 256-bit bus with 736.3 GB/s. The H20 NVL16 also uses a PCIe 5.0 x16 interface, while the RTX 4080 SUPER uses PCIe 4.0 x16. For workloads that require massive memory capacity and high bandwidth, the H20 NVL16 is the only option with data to support that role.

The RTX 4080 SUPER has a production status of End-of-life, while the H20 NVL16 is Active. This matters for availability and long-term support decisions. The RTX 4080 SUPER also has a successor, the GeForce 50 series, and a predecessor in the GeForce 30 series. The H20 NVL16 belongs to the Server Hopper generation, with Server Ada as its predecessor and Server Blackwell as its successor.

Architecture Differences

The two GPUs share a 5 nm process node and TSMC as the foundry, but almost every other architectural detail diverges. The RTX 4080 SUPER uses the AD103 chip with Ada Lovelace architecture, packing 45,900 million transistors on a 379 mm² die. The H20 NVL16 uses the GH100 chip with Hopper architecture, containing 80,000 million transistors on an 814 mm² die. The transistor density tells the story: the RTX 4080 SUPER achieves 121.1M transistors per mm², while the H20 NVL16 manages 98.3M per mm², reflecting the larger and more complex server die.

Clock speeds differ significantly. The RTX 4080 SUPER runs at a base clock of 2295 MHz and a boost clock of 2550 MHz. The H20 NVL16 runs at 1830 MHz base and 1980 MHz boost. Memory clocks also diverge: the RTX 4080 SUPER uses 1438 MHz with 23 Gbps effective GDDR6X, while the H20 NVL16 uses 1313 MHz with 5.3 Gbps effective HBM3. The HBM3 implementation trades clock speed for enormous bus width and capacity.

Compute resources show a nuanced split. The RTX 4080 SUPER has 10240 shading units, 320 TMUs, and 112 ROPs. The H20 NVL16 has 9984 shading units, 312 TMUs, and only 24 ROPs. The low ROP count on the H20 NVL16 reflects its non-rendering focus, as does the absence of RT cores (listed as null) compared to the RTX 4080 SUPER's 80 RT cores. Tensor cores favor the H20 NVL16 in raw count at 312 versus 320 for the RTX 4080 SUPER, but the performance profiles differ.

The floating-point capabilities show clear specialization. The RTX 4080 SUPER delivers 52.22 TFLOPS for both FP32 and FP16, with a 1:1 ratio. The H20 NVL16 delivers 39.54 TFLOPS FP32 but doubles FP16 to 79.07 TFLOPS with a 2:1 ratio. This indicates the H20 NVL16 prioritizes half-precision compute for AI training workloads, while the RTX 4080 SUPER maintains balanced precision for graphics and general compute.

Pixel and texture rates reinforce the split. The RTX 4080 SUPER achieves 285.6 GPixel/s and 816.0 GTexel/s. The H20 NVL16 manages only 47.52 GPixel/s and 617.8 GTexel/s. The pixel rate gap is enormous, over 6 times, because the H20 NVL16 has only 24 ROPs. The texture rate gap is smaller, reflecting similar TMU counts, but still favors the RTX 4080 SUPER by about 32%.

Power and form factor differences are stark. The RTX 4080 SUPER has a 320 W TDP, uses a triple-slot cooler with a 16-pin connector, and requires a 700 W suggested PSU. It measures 310 mm long, 140 mm high, and 61 mm wide with display outputs including 1x HDMI 2.1 and 3x DisplayPort 1.4a. The H20 NVL16 has a 400 W TDP, comes as an SXM Module, has no display outputs, and requires an 800 W suggested PSU. The H20 NVL16 has no listed physical dimensions.

API support also separates them. The RTX 4080 SUPER supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The H20 NVL16 lists N/A for DirectX, OpenGL, and Vulkan, confirming it is not designed for graphics APIs. The release dates differ by over a year: the RTX 4080 SUPER launched on 2024-01-30, while the H20 NVL16 launched on 2025-09-01.

Head-to-Head Benchmarks

The head-to-head benchmark table in the database is empty, and the H20 NVL16 has no individual benchmark scores. This makes a direct numerical comparison impossible for performance metrics. However, the RTX 4080 SUPER's complete suite provides reference points, and its nearest rivals in the database offer context for interpreting its scores.

The RTX 4080 SUPER's average benchmark score of 54209 places it just below the NVIDIA GeForce RTX 4080, which scores 54247, a delta of only -0.1%. The AMD Radeon Pro W5700X scores 54828, putting the RTX 4080 SUPER 1.1% behind. The AMD Radeon RX 6750 GRE 12 GB scores 55698, a 2.7% gap. The AMD Radeon 8060S scores 55757, a 2.8% gap. These deltas are all small, indicating the RTX 4080 SUPER sits in a tight competitive cluster.

The 3DMark Steel Nomad DX12 score of 6600 represents the RTX 4080 SUPER's strongest synthetic gaming result. The Passmark G3D score of 34245 and Passmark GPU Compute score of 19822 show strong performance in both graphics and compute workloads. The Passmark DirectX 11 score of 301 leads its DirectX 10 score of 193, DirectX 12 score of 134, and DirectX 9 score of 381. The Passmark G2D score of 1270 covers 2D operations.

The RTX 4080 SUPER's 86th percentile ranking among all GPUs means it outperforms 86% of tracked devices. This percentile is based on the full benchmark suite, not just peak scores. The average benchmark score of 54209, which includes all ten tests, serves as the aggregate measure used for ranking.

The H20 NVL16 has no scores to compare, and its nearest rivals list is empty. Its 50th percentile ranking appears to be a default or placeholder value, since it has no recorded benchmarks and an average score of 0. The data cannot support any claim about the H20 NVL16's performance relative to other GPUs, only its architectural specifications.

The Verdict

The data supports a clear division of purpose. The NVIDIA GeForce RTX 4080 SUPER is a desktop graphics card for rendering, gaming, and general compute. Its complete benchmark suite, DirectX 12 Ultimate support, 112 ROPs, 80 RT cores, and 52.22 TFLOPS FP32 performance position it as a capable graphics solution. Its triple-slot design, display outputs, and PCIe 4.0 interface match a consumer or workstation chassis. The 86th percentile ranking and average score of 54209 place it in the upper tier of the database.

The NVIDIA H20 NVL16 is a server accelerator for memory-intensive and AI-focused workloads. Its 96 GB HBM3 with 4.03 TB/s bandwidth, 6144-bit bus, and 79.07 TFLOPS FP16 performance indicate a design optimized for large model training and inference. The lack of display outputs, graphics APIs, and RT cores confirms it is not a rendering product. The SXM Module form factor and 400 W TDP target data center deployment.

Users who need graphics output, DirectX or Vulkan support, and strong rasterization should select the RTX 4080 SUPER. The data shows it delivers competitive scores against its nearest rivals, all within a 2.8% range. Users who need large memory capacity, high bandwidth, and half-precision compute should select the H20 NVL16. The data shows it provides 6 times the memory, over 5 times the bandwidth, and 1.5 times the FP16 throughput.

The production status difference matters. The RTX 4080 SUPER is End-of-life with a successor already released. The H20 NVL16 is Active with no successor in the recorded data. The RTX 4080 SUPER has a launch MSRP of 999 USD, while the H20 NVL16 has no recorded launch MSRP. The RTX 4080 SUPER's predecessor is the GeForce 30 series, and its successor is GeForce 50. The H20 NVL16's predecessor is Server Ada, and its successor is Server Blackwell.

FAQ

Q: Which GPU has more memory?

A: The NVIDIA H20 NVL16 has 96 GB of HBM3 memory, while the NVIDIA GeForce RTX 4080 SUPER has 16 GB of GDDR6X.

Q: Which GPU has higher memory bandwidth?

A: The NVIDIA H20 NVL16 has 4.03 TB/s bandwidth on a 6144-bit bus, compared to 736.3 GB/s on a 256-bit bus for the RTX 4080 SUPER.

Q: Which GPU supports DirectX?

A: Only the NVIDIA GeForce RTX 4080 SUPER supports DirectX 12 Ultimate (12_2), along with OpenGL 4.6 and Vulkan 1.4. The NVIDIA H20 NVL16 lists N/A for all graphics APIs.

Q: What is the FP16 compute difference?

A: The NVIDIA H20 NVL16 delivers 79.07 TFLOPS FP16 with a 2:1 ratio, while the RTX 4080 SUPER delivers 52.22 TFLOPS FP16 with a 1:1 ratio.

Q: Which GPU has a higher FP32 throughput?

A: The NVIDIA GeForce RTX 4080 SUPER has 52.22 TFLOPS FP32, compared to 39.54 TFLOPS for the H20 NVL16.

Q: What are the production statuses?

A: The RTX 4080 SUPER is recorded as End-of-life with a release date of 2024-01-30, while the H20 NVL16 is Active with a release date of 2025-09-01.