NVIDIA GeForce RTX 5080 vs NVIDIA H20 Comparison

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark results between the NVIDIA GeForce RTX 5080 and the NVIDIA H20. The RTX 5080 has a full suite of recorded measurements, while the H20 has no benchmark scores listed. This makes a direct numerical comparison of application performance impossible from the available data. However, the architectural specifications and the RTX 5080's percentile ranking provide a basis for analyzing their respective positions.

The RTX 5080 scores an average benchmark result of 56,083 across all recorded tests. This places it in the 87th percentile of all GPUs in the database. Its nearest rivals show a tightly clustered set of results. The AMD Radeon 8060S averages 55,757, a delta of 0.6% behind the RTX 5080. The AMD Radeon RX 6750 GRE 12 GB averages 55,698, 0.7% behind. The AMD Radeon Pro W5700X averages 54,828, 2.3% behind. The AMD Radeon RX 9070 GRE averages 57,367, which is 2.2% ahead of the RTX 5080. The data shows the RTX 5080 sits in a competitive band where the largest recorded gap among these rivals is just over two percentage points.

Specific workload results for the RTX 5080 show its strengths. In 3DMark Steel Nomad DX12, it records a score of 8,637. In Geekbench OpenCL, it achieves 235,901, and in Geekbench Vulkan, it reaches 255,450. PassMark GPU Compute delivers 21,789. PassMark G3D scores 36,565. The H20 has no comparable figures, so these results stand alone as the only quantitative performance data available for this comparison.

Where Each One Wins

The RTX 5080 wins in every measured category because it is the only one with recorded benchmark data. The H20 has no benchmarks, no average score, and no nearest rivals in the database. Its percentile ranking of 50th among all GPUs is a default position, not a measured result. The RTX 5080's 87th percentile ranking reflects actual test scores.

The RTX 5080 delivers strong results across different API types. Its DirectX 12 performance, shown by the 3DMark Steel Nomad score of 8,637, indicates solid modern gaming capability. Its compute-oriented results, such as the Geekbench OpenCL score of 235,901, show general-purpose workload strength. The Vulkan score of 255,450 suggests broad compatibility with cross-platform graphics APIs.

The H20, by contrast, is a server-oriented accelerator with no display outputs and no DirectX, OpenGL, or Vulkan support listed. Its architecture targets different workloads. The RTX 5080 uses the Blackwell 2.0 architecture with a GB203 chip, while the H20 uses Hopper with a GH100 chip. The H20 has no recorded wins because no tests exist for it in the database.

The Verdict

The data indicates a clear split in purpose rather than a simple performance hierarchy. The RTX 5080 is a client graphics card with measurable gaming and compute scores. The H20 is a server module with no recorded client benchmarks.

For any workload that appears in the database, the RTX 5080 is the only option with evidence of capability. Its average score of 56,083 and 87th percentile placement confirm it competes closely with the AMD Radeon 8060S, RX 6750 GRE 12 GB, and Pro W5700X, while trailing the RX 9070 GRE by 2.2%. The H20 cannot be ranked against these products because it has no scores.

The H20's specifications show it is built for different tasks. It uses 80,000 million transistors on an 814 mm² die, compared to the RTX 5080's 45,600 million transistors on a 378 mm² die. Its memory configuration of 96 GB HBM3 with a 6144-bit bus and 4.03 TB/s bandwidth far exceeds the RTX 5080's 16 GB GDDR7 with a 256-bit bus and 960.0 GB/s bandwidth. The H20 also has a higher FP16 throughput of 79.07 TFLOPS versus the RTX 5080's 56.28 TFLOPS, despite having a lower FP32 rate of 39.54 TFLOPS versus 56.28 TFLOPS.

The RTX 5080 has a launch MSRP of 999 USD. The H20 has no listed launch price.

FAQ

Q: Which GPU has a higher FP32 compute throughput?

A: The RTX 5080 records 56.28 TFLOPS FP32, while the H20 records 39.54 TFLOPS FP32.

Q: Which GPU has more memory bandwidth?

A: The H20 has 4.03 TB/s bandwidth from its 96 GB HBM3 memory on a 6144-bit bus. The RTX 5080 has 960.0 GB/s bandwidth from 16 GB GDDR7 on a 256-bit bus.

Q: Does the H20 support DirectX?

A: No. The database lists DirectX as N/A for the H20. The RTX 5080 supports DirectX 12 Ultimate (12_2).

Q: How does the RTX 5080 compare to the AMD Radeon RX 9070 GRE?

A: The RX 9070 GRE averages 57,367, which is 2.2% higher than the RTX 5080's average of 56,083.

Q: What is the transistor count difference between the two GPUs?

A: The H20 uses 80,000 million transistors, while the RTX 5080 uses 45,600 million transistors.

Q: Which GPU has more shading units?

A: The RTX 5080 has 10,752 shading units, while the H20 has 9,984 shading units.

Architecture Differences

The RTX 5080 and H20 use different architectures, chips, and memory systems. The RTX 5080 is built on Blackwell 2.0 with the GB203 chip, fabricated on a 5 nm process at TSMC. The H20 uses Hopper with the GH100 chip, also on a 5 nm process at TSMC. The die sizes differ substantially: the RTX 5080 measures 378 mm², while the H20 measures 814 mm². Transistor density reflects this: the RTX 5080 has 120.6 million transistors per mm², while the H20 has 98.3 million per mm².

Clock speeds differ. The RTX 5080 has a base clock of 2295 MHz and a boost clock of 2617 MHz. The H20 has a base clock of 1830 MHz and a boost clock of 1980 MHz. Memory clocks also differ: the RTX 5080 runs at 1875 MHz with 30 Gbps effective speed, while the H20 runs at 1313 MHz with 5.3 Gbps effective speed.

Memory subsystems are built for different purposes. The RTX 5080 uses 16 GB of GDDR7 on a 256-bit bus. The H20 uses 96 GB of HBM3 on a 6144-bit bus. The resulting bandwidth is 960.0 GB/s for the RTX 5080 and 4.03 TB/s for the H20. The H20's memory configuration is clearly designed for large data sets, while the RTX 5080's is suited to client workloads.

Compute resources differ in count and capability. The RTX 5080 has 10,752 shading units, 336 TMUs, 112 ROPs, 84 RT cores, and 336 tensor cores. The H20 has 9,984 shading units, 312 TMUs, 24 ROPs, no RT cores listed, and 312 tensor cores. The pixel rate for the RTX 5080 is 293.1 GPixel/s versus 47.52 GPixel/s for the H20. The texture rate is 879.3 GTexel/s versus 617.8 GTexel/s.

FP16 throughput shows the H20's strength. The RTX 5080 delivers 56.28 TFLOPS FP16 at a 1:1 ratio with FP32. The H20 delivers 79.07 TFLOPS FP16 at a 2:1 ratio, more than double its FP32 rate. This indicates the H20 is optimized for mixed-precision workloads.

Power and physical specifications diverge. The RTX 5080 has a TDP of 360 W, a dual-slot design, a 16-pin power connector, and a suggested PSU of 750 W. The H20 has a TDP of 500 W, uses an SXM module form factor, has no power connector listed, and suggests a 900 W PSU. The RTX 5080 includes display outputs (1x HDMI 2.1b and 3x DisplayPort 2.1b), while the H20 has no outputs. The RTX 5080 measures 304 mm in length, 137 mm in height, and 40 mm in width. The H20 has no dimensions listed.

API support reflects their roles. The RTX 5080 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The H20 lists N/A for all three. The RTX 5080 uses a PCIe 5.0 x16 interface, as does the H20. Release dates differ: the RTX 5080 launched on 2025-01-29, while the H20 launched on 2024-01-31. The RTX 5080's predecessor is GeForce 40 and its successor is GeForce 60. The H20's predecessor is Server Ada and its successor is Server Blackwell.