NVIDIA GeForce RTX 4080 vs NVIDIA GeForce RTX 5090 Comparison

Where Each One Wins

The recorded data paints an unambiguous picture: the RTX 5090 wins every single head-to-head benchmark in the database, 10 out of 10. There are no benchmark categories where the RTX 4080 takes a victory. However, the magnitude of the RTX 5090's advantage varies dramatically by workload type, which reveals distinct use-case strengths.

For raw compute and modern API workloads, the RTX 5090 is in a different league entirely. In 3DMark Steel Nomad (DX12), a test designed for current-generation rasterization, the RTX 5090 scores 18,355 against the RTX 4080's 6,567, a 179.5% advantage. This is the largest delta in the entire comparison and indicates that for next-generation gaming workloads, the RTX 5090 is nearly three times as fast. Similarly, compute-oriented tests show a massive gap: Geekbench OpenCL shows a 55.7% lead (334,370 vs 214,739), and Passmark GPU Compute shows a 29.4% lead (26,756 vs 20,671). These results point to the RTX 5090 being the clear choice for GPU-accelerated compute, rendering, and AI-style workloads that stress raw shader throughput.

The RTX 5090 also excels in Vulkan API performance. Geekbench Vulkan scores 376,728 versus 263,779, a 42.8% advantage. This suggests that the newer Blackwell architecture extracts significantly more performance from the Vulkan API, which is often used in professional visualization and cross-platform gaming. For users running Vulkan-based applications or engines, the database shows a decisive edge.

The RTX 4080's relative strength, such as it is, appears in legacy DirectX 9 workloads. Here the delta shrinks to just 6.8% (395 vs 370). Similarly, DirectX 10 shows a modest 10.8% gap (226 vs 204), and DirectX 11 narrows to 8.6% (341 vs 314). While the RTX 5090 still wins these tests, the small margins suggest that for older games or applications running on legacy APIs, the RTX 4080 remains competitive. The RTX 5090 does not run away from the older card in these scenarios, which could matter for users with older software libraries. That said, even in these legacy tests, the RTX 5090 holds the lead.

The Passmark G2D test, which measures 2D graphics and desktop composition performance, shows a 14% advantage for the RTX 5090 (1,413 vs 1,239). This is a modest win, indicating that while the newer card is faster in everyday 2D tasks, the difference is not transformative. The G3D (3D gaming) score shows a 15.1% lead (39,650 vs 34,457), which is a solid but not overwhelming win. The RTX 5090 wins in every category, but the use-case split is clear: for modern, demanding workloads, the advantage is enormous; for legacy and 2D tasks, the lead is more modest.

Architecture Differences

The architectural gap between these two NVIDIA cards is substantial. The RTX 5090 is built on the Blackwell 2.0 architecture using the GB202 chip, while the RTX 4080 uses the Ada Lovelace architecture with the AD103 chip. Both are manufactured on a 5 nm process at TSMC, but the transistor counts differ enormously. The RTX 5090 packs 92,200 million transistors on a 750 mm² die, while the RTX 4080 has 45,900 million transistors on a 379 mm² die. Transistor density is nearly identical (122.9M per mm² versus 121.1M per mm²), meaning the RTX 5090 achieves its performance primarily through a much larger physical die rather than a denser process.

The execution resources scale accordingly. The RTX 5090 has 21,760 shading units, 680 texture mapping units, and 176 raster output units. The RTX 4080 has 9,728 shading units, 304 TMUs, and 112 ROPs. This more than doubles the shader count and more than doubles the texture units. Ray tracing hardware also scales: the RTX 5090 has 170 RT cores and 680 tensor cores, versus 76 RT cores and 304 tensor cores in the RTX 4080. These figures indicate that the RTX 5090 is designed for much heavier ray tracing and AI-accelerated workloads.

Clock speeds tell an interesting story. The RTX 4080 actually runs at higher clocks: 2,205 MHz base and 2,505 MHz boost, compared to the RTX 5090's 2,017 MHz base and 2,407 MHz boost. The RTX 5090 sacrifices clock speed in exchange for the massive parallel resources. Memory also differs significantly. The RTX 5090 uses 32 GB of GDDR7 on a 512-bit bus achieving 1.79 TB/s bandwidth, while the RTX 4080 has 16 GB of GDDR6X on a 256-bit bus at 716.8 GB/s. The newer GDDR7 memory runs at 1750 MHz (28 Gbps effective) versus the GDDR6X's 1400 MHz (22.4 Gbps effective).

The interface and connectivity also reflect generational differences. The RTX 5090 uses PCIe 5.0 x16, while the RTX 4080 uses PCIe 4.0 x16. Display outputs differ as well: the RTX 5090 has 1x HDMI 2.1b and 3x DisplayPort 2.1b, whereas the RTX 4080 has 1x HDMI 2.1 and 3x DisplayPort 1.4a. This means the RTX 5090 supports newer display standards. The API support is identical for both cards: DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

FAQ

Q: Which card has a higher average benchmark score?

A: The RTX 5090 has an average benchmark score of 79,842, placing it in the 92nd percentile of all GPUs. The RTX 4080 averages 54,247, which is in the 86th percentile.

Q: How much faster is the RTX 5090 in the most demanding DX12 test?

A: In 3DMark Steel Nomad DX12, the RTX 5090 scores 18,355 versus 6,567 for the RTX 4080, a 179.5% advantage.

Q: What are the memory capacities and types?

A: The RTX 5090 has 32 GB of GDDR7 on a 512-bit bus with 1.79 TB/s bandwidth. The RTX 4080 has 16 GB of GDDR6X on a 256-bit bus with 716.8 GB/s bandwidth.

Q: Does the RTX 4080 win any benchmark in the database?

A: No. The head-to-head benchmark data shows the RTX 5090 winning all 10 recorded tests, with winsA equal to 10 and winsB equal to 0.

Q: How do the physical dimensions compare?

A: The RTX 5090 is a dual-slot card measuring 304 mm in length, 137 mm in height, and 40 mm in width. The RTX 4080 is a triple-slot card at 310 mm long, 140 mm high, and 61 mm wide.

Q: What is the difference in power requirements?

A: The RTX 5090 has a TDP of 575 W and suggests a 950 W PSU. The RTX 4080 has a TDP of 320 W and suggests a 700 W PSU. Both use a single 16-pin power connector.

Specification Differences

The table below highlights only the fields where the two cards differ, based on the database records.

| Specification | RTX 5090 | RTX 4080 |

|---|---|---|

| Architecture | Blackwell 2.0 | Ada Lovelace |

| Chip | GB202 | AD103 |

| Generation | GeForce 50 | GeForce 40 |

| Transistors | 92,200 million | 45,900 million |

| Die Size | 750 mm² | 379 mm² |

| Base Clock | 2017 MHz | 2205 MHz |

| Boost Clock | 2407 MHz | 2505 MHz |

| Memory Clock | 1750 MHz (28 Gbps effective) | 1400 MHz (22.4 Gbps effective) |

| Memory Size | 32 GB | 16 GB |

| Memory Type | GDDR7 | GDDR6X |

| Bus Width | 512 bit | 256 bit |

| Bandwidth | 1.79 TB/s | 716.8 GB/s |

| Shading Units | 21,760 | 9,728 |

| TMUs | 680 | 304 |

| ROPs | 176 | 112 |

| RT Cores | 170 | 76 |

| Tensor Cores | 680 | 304 |

| Pixel Rate | 423.6 GPixel/s | 280.6 GPixel/s |

| Texture Rate | 1,636.8 GTexel/s | 761.5 GTexel/s |

| FP32 | 104.8 TFLOPS | 48.74 TFLOPS |

| FP16 | 104.8 TFLOPS (1:1) | 48.74 TFLOPS (1:1) |

| TDP | 575 W | 320 W |

| Slot Width | Dual-slot | Triple-slot |

| Suggested PSU | 950 W | 700 W |

| Bus Interface | PCIe 5.0 x16 | PCIe 4.0 x16 |

| Display Outputs | 1x HDMI 2.1b, 3x DisplayPort 2.1b | 1x HDMI 2.1, 3x DisplayPort 1.4a |

| Dimensions | 304 x 137 x 40 mm | 310 x 140 x 61 mm |

| Release Date | 2025-01-29 | 2022-09-19 |

| Production Status | Active | End-of-life |

| Predecessor | GeForce 40 | GeForce 30 |

| Successor | GeForce 60 | GeForce 50 |

The RTX 5090 is the clear specification leader in every compute resource, but it runs at lower clocks and consumes significantly more power. The RTX 4080 is smaller, cooler, and more power-efficient, but offers less than half the shading units and memory bandwidth.

Head-to-Head Benchmarks

The biggest win for the RTX 5090 is in 3DMark Steel Nomad DX12, where it scores 18,355 against the RTX 4080's 6,567. This 179.5% delta is the standout result, showing that in modern DX12 rasterization, the newer card is nearly three times faster. This test likely stresses the combination of raw shader throughput, texture rate, and memory bandwidth, all of which favor the RTX 5090 heavily.

Geekbench OpenCL shows the second-largest margin at 55.7% (334,370 vs 214,739). This is a compute-focused workload, and the RTX 5090's 104.8 TFLOPS FP32 performance versus the RTX 4080's 48.74 TFLOPS explains the substantial lead. The RTX 5090's 21,760 shading units, more than double the RTX 4080's 9,728, directly translate into compute performance.

Geekbench Vulkan follows with a 42.8% advantage (376,728 vs 263,779). This API-level test benefits from the newer architecture's improved Vulkan driver and execution model. The RTX 5090's 680 tensor cores and 170 RT cores may also contribute to this workload, which can leverage heterogeneous compute.

Passmark DirectX 12 shows a 40.2% lead (185 vs 132). While the absolute scores are low, the proportional difference is significant, reinforcing the pattern that newer APIs expose the RTX 5090's architectural advantages. Passmark GPU Compute gives the RTX 5090 a 29.4% edge (26,756 vs 20,671), again reflecting the raw compute resource advantage.

The gaming-oriented Passmark G3D test shows a 15.1% win for the RTX 5090 (39,650 vs 34,457). This is a more moderate margin, suggesting that in traditional 3D gaming scenarios, the RTX 4080 remains a capable performer, though clearly behind. The Passmark G2D test shows a 14% gap (1,413 vs 1,239), which is a minor difference in desktop 2D workloads.

The legacy API tests show the narrowest margins. Passmark DirectX 10 gives the RTX 5090 a 10.8% win (226 vs 204). DirectX 11 shows an 8.6% lead (341 vs 314). DirectX 9 is the closest at 6.8% (395 vs 370). These small deltas indicate that for older games and applications, the RTX 4080's higher clock speeds (2,505 MHz boost versus 2,407 MHz) help it stay competitive, partially offsetting the RTX 5090's resource advantage. The RTX 5090 still wins every test, but the legacy API results show that raw clock speed can narrow the gap when software does not scale with parallel resources.

Overall, the database shows a consistent pattern: the RTX 5090 dominates in modern, parallel-heavy workloads, while the RTX 4080 remains respectable only in legacy single-threaded scenarios. The RTX 5090's 10-0 sweep is decisive, with an average benchmark score of 79,842 versus 54,247, a 47% difference in aggregate performance.