NVIDIA GeForce RTX 5080 vs NVIDIA H20 NVL16 Comparison

Head-to-Head Benchmarks

The comparison between the NVIDIA GeForce RTX 5080 and the NVIDIA H20 NVL16 is complicated by the fact that the database contains no shared benchmark results. The RTX 5080 has a full suite of recorded scores across DirectX, OpenCL, and Vulkan workloads, while the H20 NVL16 has no entry-level gaming or workstation benchmarks in the database. Its recorded average benchmark score is zero, and its percentile ranking sits at 50, meaning it falls exactly at the midpoint of all GPUs in the database. The RTX 5080, by contrast, holds an 87th percentile position, placing it well above the majority of recorded graphics cards.

In the data that exists, the RTX 5080 demonstrates strong synthetic performance. In 3DMark Steel Nomad DX12, it records a score of 8637. Geekbench OpenCL returns 235901, and Geekbench Vulkan returns 255450. Passmark G3D shows 36565, while Passmark GPU Compute shows 21789. These are the only absolute numbers available for either product, and they all belong to the RTX 5080. The H20 NVL16 has no comparable scores, so any direct head-to-head comparison across identical tests is impossible from the recorded data.

The nearest rivals for the RTX 5080 provide context for its standing. The AMD Radeon 8060S averages 55757, which is 0.6% lower than the RTX 5080’s 56083 average. The AMD Radeon RX 6750 GRE 12 GB trails by 0.7% at 55698. The AMD Radeon Pro W5700X is 2.3% behind at 54828. On the other side, the AMD Radeon RX 9070 GRE leads by 2.2% with an average of 57367. These deltas are small, indicating that the RTX 5080 sits in a tightly contested cluster, narrowly ahead of three rivals and narrowly behind one. The H20 NVL16 has no nearest rivals listed, so no such comparisons can be drawn for it.

The absence of benchmark data for the H20 NVL16 means the analysis must rely on architectural and specification differences. The recorded data shows that the RTX 5080 is a client-focused graphics card with consumer display outputs and API support, while the H20 NVL16 is a server module with no display outputs and no DirectX, OpenGL, or Vulkan API support. This distinction explains why the H20 NVL16 has no gaming or workstation benchmark scores in the database. It is not designed for those workloads.

FAQ

Q: Why does the NVIDIA H20 NVL16 have no benchmark scores in the database?

A: The database lists no benchmark entries for the H20 NVL16. Its average benchmark score is recorded as 0, and its percentile rank is 50. The card has no display outputs and no DirectX, OpenGL, or Vulkan API support, which aligns with its server-oriented design. The RTX 5080, in contrast, has ten recorded benchmark scores across multiple test suites.

Q: How does the RTX 5080 compare to its nearest rivals in average score?

A: The RTX 5080 averages 56083 points. The AMD Radeon 8060S is 0.6% lower at 55757, the AMD Radeon RX 6750 GRE 12 GB is 0.7% lower at 55698, and the AMD Radeon Pro W5700X is 2.3% lower at 54828. The AMD Radeon RX 9070 GRE is 2.2% higher at 57367.

Q: What is the memory configuration of each card?

A: The RTX 5080 uses 16 GB of GDDR7 memory on a 256-bit bus with 960.0 GB/s bandwidth. The H20 NVL16 uses 96 GB of HBM3 memory on a 6144-bit bus with 4.03 TB/s bandwidth. The H20 NVL16 has six times the memory capacity and over four times the bandwidth.

Q: What are the clock speeds for each card?

A: The RTX 5080 has a base clock of 2295 MHz and a boost clock of 2617 MHz, with memory running at 1875 MHz (30 Gbps effective). The H20 NVL16 has a base clock of 1830 MHz and a boost clock of 1980 MHz, with memory running at 1313 MHz (5.3 Gbps effective).

Q: Which card has higher raw FP32 throughput?

A: The RTX 5080 delivers 56.28 TFLOPS in FP32. The H20 NVL16 delivers 39.54 TFLOPS in FP32. For FP16, the RTX 5080 again delivers 56.28 TFLOPS at a 1:1 ratio, while the H20 NVL16 delivers 79.07 TFLOPS at a 2:1 ratio.

Q: What is the thermal design power for each?

A: The RTX 5080 has a TDP of 360 W with a suggested PSU of 750 W. The H20 NVL16 has a TDP of 400 W with a suggested PSU of 800 W.

Where Each One Wins

The RTX 5080 wins in all client-facing graphics workloads where benchmark scores exist. Its 3DMark Steel Nomad DX12 score of 8637, Geekbench OpenCL score of 235901, and Geekbench Vulkan score of 255450 indicate strong performance in modern graphics APIs. Passmark results across DirectX 9, 10, 11, and 12 show scores of 389, 208, 324, and 151 respectively, with a G3D score of 36565 and a GPU compute score of 21789. These numbers confirm that the RTX 5080 is a capable consumer graphics card for gaming and general GPU compute tasks.

The H20 NVL16 wins in memory capacity and memory bandwidth. Its 96 GB of HBM3 memory on a 6144-bit bus delivers 4.03 TB/s, dwarfing the RTX 5080’s 16 GB GDDR7 on a 256-bit bus at 960.0 GB/s. For workloads that require large model residency or massive data throughput, the H20 NVL16’s memory subsystem is decisively larger. Its FP16 throughput of 79.07 TFLOPS also exceeds the RTX 5080’s 56.28 TFLOPS, which can matter for AI inference and training tasks that operate in reduced precision.

The H20 NVL16 also wins on transistor count and die size. It packs 80,000 million transistors on an 814 mm² die, compared to the RTX 5080’s 45,600 million transistors on a 378 mm² die. The larger silicon area and higher transistor budget give the H20 NVL16 more headroom for server-specific workloads, even though its transistor density is lower (98.3M per mm² versus 120.6M per mm² for the RTX 5080).

Specification Differences

The two cards differ across nearly every measurable specification. The RTX 5080 uses the GB203 chip with Blackwell 2.0 architecture, while the H20 NVL16 uses the GH100 chip with Hopper architecture. Both are fabricated on a 5 nm process at TSMC, but the die sizes diverge sharply: 378 mm² for the RTX 5080 versus 814 mm² for the H20 NVL16. Transistor counts follow suit, with 45,600 million on the RTX 5080 and 80,000 million on the H20 NVL16.

Memory is a major differentiator. The RTX 5080 has 16 GB of GDDR7 with a 256-bit bus and 960.0 GB/s bandwidth. The H20 NVL16 has 96 GB of HBM3 with a 6144-bit bus and 4.03 TB/s bandwidth. Clock speeds also differ, with the RTX 5080 running at 2295 MHz base and 2617 MHz boost, while the H20 NVL16 runs at 1830 MHz base and 1980 MHz boost. The RTX 5080’s memory clock is 1875 MHz (30 Gbps effective), while the H20 NVL16’s is 1313 MHz (5.3 Gbps effective).

Compute resources vary as well. The RTX 5080 has 10752 shading units, 336 TMUs, 112 ROPs, 84 RT cores, and 336 tensor cores. The H20 NVL16 has 9984 shading units, 312 TMUs, 24 ROPs, no listed RT cores, and 312 tensor cores. Pixel and texture rates reflect these differences: the RTX 5080 delivers 293.1 GPixel/s and 879.3 GTexel/s, while the H20 NVL16 delivers 47.52 GPixel/s and 617.8 GTexel/s.

Power and physical design also diverge. The RTX 5080 draws 360 W and uses a dual-slot form factor with a 1x 16-pin power connector, suggesting a 750 W PSU. The H20 NVL16 draws 400 W and uses an SXM module form factor with no listed power connector, suggesting an 800 W PSU. The RTX 5080 has display outputs (1x HDMI 2.1b, 3x DisplayPort 2.1b) and supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. The H20 NVL16 has no display outputs and lists N/A for DirectX, OpenGL, and Vulkan. The RTX 5080 measures 304 mm in length, 137 mm in height, and 40 mm in width; the H20 NVL16 has no recorded dimensions.

Architecture Differences

The RTX 5080 is built on Blackwell 2.0 architecture, representing NVIDIA’s GeForce 50-series generation. It uses the GB203 chip and is a direct successor to the GeForce 40 series, with the GeForce 60 series listed as its successor. The H20 NVL16 is built on Hopper architecture, belonging to the Server Hopper (Hxx) generation. It uses the GH100 chip, with Server Ada as its predecessor and Server Blackwell as its successor.

The architectural split is fundamental. Blackwell 2.0 on the RTX 5080 includes dedicated RT cores (84 of them) and tensor cores (336), enabling hardware-accelerated ray tracing and AI workloads. Hopper on the H20 NVL16 lists no RT cores, meaning the architecture does not prioritize real-time ray tracing. It does include 312 tensor cores, but the focus is on server-side compute rather than graphics rendering.

The H20 NVL16’s FP16 output is 79.07 TFLOPS at a 2:1 ratio, double its FP32 output of 39.54 TFLOPS. This asymmetry is characteristic of data center accelerators that emphasize reduced-precision compute. The RTX 5080’s FP16 output is 56.28 TFLOPS at a 1:1 ratio, matching its FP32 output exactly, which is typical for a consumer GPU that must handle both graphics and compute without precision scaling.

The memory architectures reflect different priorities. The RTX 5080 uses GDDR7, a high-speed graphics memory designed for latency-sensitive rendering tasks. The H20 NVL16 uses HBM3, a stacked memory technology with enormous bandwidth and capacity, suited to data-intensive server workloads. The 6144-bit bus on the H20 NVL16 is 24 times wider than the RTX 5080’s 256-bit bus, and the 4.03 TB/s bandwidth is more than four times higher.

The physical implementations also differ. The RTX 5080 is a dual-slot PCIe 5.0 x16 card with a 16-pin power connector, designed to fit into a standard desktop chassis. The H20 NVL16 is an SXM module, a proprietary server form factor that mounts directly onto a motherboard or carrier board rather than into a PCIe slot. It has no power connector listed, as power is delivered through the SXM interface. The RTX 5080’s release date is recorded as 2025-01-29, while the H20 NVL16’s is 2025-09-01, placing the server part later in the product cycle.

The Verdict

The recorded data supports a clear split between these two products. The RTX 5080 is a consumer graphics card with measurable performance in gaming and workstation benchmarks. Its 87th percentile ranking, average score of 56083, and presence of ten benchmark results make it a quantifiable choice for client-side graphics. Users seeking a card with display outputs, DirectX 12 Ultimate support, and ray tracing capability should look to the RTX 5080, as it is the only one of the two with any of those features.

The H20 NVL16 is a server accelerator with no benchmark scores, no display outputs, and no consumer API support. Its 96 GB HBM3 memory and 4.03 TB/s bandwidth indicate a design aimed at large-scale compute, but the database contains no direct measurements of its performance. Its 50th percentile ranking is a placeholder, not a performance claim, and its average score of 0 reflects the absence of data rather than a functional zero.

From the specifications alone, the H20 NVL16 offers superior memory capacity and bandwidth, higher FP16 throughput, and a larger transistor budget. The RTX 5080 offers superior FP32 throughput, higher clock speeds, dedicated RT cores, and a full suite of graphics APIs. Neither product can substitute for the other. The RTX 5080 targets real-time rendering and general GPU compute on a desktop, while the H20 NVL16 targets server-side workloads that demand massive memory pools and reduced-precision compute. The data does not support a single winner; it supports two distinct use cases.