NVIDIA GeForce RTX 4080 vs NVIDIA GeForce RTX 5090 D Comparison

Head-to-Head Benchmarks

The benchmark data is unequivocal: the NVIDIA GeForce RTX 5090 D wins every single recorded head-to-head test against the RTX 4080, with a 10-0 sweep. The most decisive victory comes in the 3DMark Steel Nomad DX12 test, where the RTX 5090 D scores 14,326 points against the RTX 4080's 6,567 points, a massive 118.2% advantage. This nearly doubles the performance of the older card in a modern DirectX 12 workload, indicating that the architecture scales exceptionally well in compute-heavy scenarios.

The gap narrows somewhat in other tests, but remains consistently substantial. In Geekbench OpenCL, the RTX 5090 D posts 310,674 points versus 214,739 points for the RTX 4080, a 44.7% delta. The Vulkan result follows a similar pattern: 376,915 versus 263,779, a 42.9% difference. These compute-oriented benchmarks show that the newer card maintains a commanding lead even in API-agnostic workloads, though the margin is roughly a third of what appears in the Steel Nomad test.

DirectX legacy tests show smaller but still clear advantages. The PassMark DirectX 9 result favors the RTX 5090 D by 17.3% (434 vs 370), while DirectX 10 shows a 13.2% gap (231 vs 204). DirectX 11 widens the margin to 18.2% (371 vs 314). The most striking legacy result is DirectX 12, where the RTX 5090 D scores 219 against 132, a 65.9% advantage. This suggests the newer architecture handles modern API features far more efficiently even in these lower-level PassMark workloads.

The PassMark G3D suite, which aggregates general gaming performance, shows the RTX 5090 D at 44,065 points versus 34,457 points for the RTX 4080, a 27.9% lead. The compute-specific PassMark GPU Compute test shows a 37.4% gap (28,396 vs 20,671). Meanwhile, the 2D performance test records a 20% delta (1,487 vs 1,239), which is notable for a card primarily designed for 3D rendering. Across all ten tests, the average benchmark score for the RTX 5090 D is 77,712 points, placing it in the 92nd percentile of all GPUs, while the RTX 4080 averages 54,247 points and sits in the 86th percentile.

Where Each One Wins

Given the sweep, the RTX 4090 D wins in every measurable category. However, the magnitude of the win varies by workload type. The largest advantage appears in the 3DMark Steel Nomad DX12 test, which is a modern, compute-heavy ray-traced workload. Here, the 118.2% delta indicates that the RTX 5090 D is not just faster, but fundamentally more capable in scenarios that stress ray tracing and advanced shading. This is the test where users will feel the most dramatic difference.

The DirectX 12 PassMark result, with a 65.9% delta, reinforces this pattern. The newer card excels in API-level efficiency, likely due to its newer architecture and higher core counts. In compute-heavy tests like Geekbench OpenCL and Vulkan, the advantage ranges from 42.9% to 44.7%, still substantial but less extreme. These results suggest that the RTX 5090 D offers strong performance for professional compute tasks such as rendering or machine learning, though the gap is narrower than in gaming-specific workloads.

The smaller deltas appear in older DirectX tests (9, 10, 11), ranging from 13.2% to 18.2%. These legacy APIs do not fully utilize the newer architecture's features, so the advantage shrinks. Even here, the RTX 5090 D remains ahead, but users running older games or applications will see less benefit. The 2D test shows a 20% delta, which is surprisingly large for a component where both cards use similar display outputs, but the newer card's higher fill rates and memory bandwidth contribute to the lead.

For users prioritizing ray tracing and modern DirectX 12 titles, the RTX 5090 D is the clear choice. For those running compute workloads that rely on OpenCL or Vulkan, the RTX 5090 D still leads by over 40%. Only in legacy DirectX 9/10/11 scenarios does the gap narrow, but it never disappears.

Architecture Differences

The architectural divide between these two cards is stark. The RTX 5090 D uses the GB202 chip based on the Blackwell 2.0 architecture, while the RTX 4080 uses the AD103 chip with Ada Lovelace. Both are manufactured on a 5 nm process at TSMC, but the transistor counts diverge dramatically: the RTX 5090 D packs 92,200 million transistors on a 750 mm² die, while the RTX 4080 contains 45,900 million transistors on a 379 mm² die. This results in a transistor density of 122.9M per mm² for the newer card versus 121.1M per mm² for the older one, a modest improvement in density despite the doubled transistor budget.

The shading unit count tells a similar story: 21,760 units on the RTX 5090 D versus 9,728 on the RTX 4080. Texture mapping units number 680 versus 304, and ROPs stand at 176 versus 112. Ray tracing cores jump from 76 to 170, while tensor cores increase from 304 to 680. These raw counts explain much of the performance delta, particularly in ray-traced and compute-heavy workloads.

Clock speeds are where the RTX 4080 actually holds an advantage in the recorded data. The RTX 4080 has a base clock of 2,205 MHz and a boost clock of 2,505 MHz, while the RTX 5090 D runs lower at 2,017 MHz base and 2,407 MHz boost. Despite lower clocks, the RTX 5090 D achieves higher throughput due to its massive core count, delivering 104.8 TFLOPS of FP32 performance versus 48.74 TFLOPS for the RTX 4080. FP16 is identical to FP32 at 1:1 ratio on both cards, so the compute lead persists across precision formats.

Memory configuration differs fundamentally. The RTX 5090 D features 32 GB of GDDR7 memory on a 512-bit bus, yielding 1.79 TB/s of bandwidth. The RTX 4080 has 16 GB of GDDR6X on a 256-bit bus, with 716.8 GB/s of bandwidth. The memory clock rates are 1,750 MHz (28 Gbps effective) for the newer card versus 1,400 MHz (22.4 Gbps effective) for the older one. This doubling of capacity and bandwidth is critical for high-resolution textures and large compute datasets.

The power profile also shifts: the RTX 5090 D has a TDP of 575 W and a suggested PSU of 950 W, while the RTX 4080 draws 320 W with a 700 W suggested PSU. Both use a single 16-pin connector, but the newer card requires substantially more power to feed its larger die. Physical dimensions differ slightly: the RTX 5090 D is 304 mm long, 137 mm tall, and 48 mm wide (dual-slot), while the RTX 4080 measures 310 mm by 140 mm by 61 mm (triple-slot). The newer card is shorter and thinner despite its larger chip, thanks to the dual-slot cooler design.

Interface and display outputs also diverge. The RTX 5090 D uses PCIe 5.0 x16, while the RTX 4080 uses PCIe 4.0 x16. Display outputs on the newer card include 1x HDMI 2.1b and 3x DisplayPort 2.1b, while the older card has 1x HDMI 2.1 and 3x DisplayPort 1.4a. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API compatibility is identical.

The Verdict

The data is unambiguous: the NVIDIA GeForce RTX 5090 D is the superior card in every recorded benchmark. It wins all ten head-to-head comparisons, with an average score of 77,712 versus 54,247 for the RTX 4080, a 43.3% overall advantage. The RTX 5090 D's percentile ranking of 92nd among all GPUs versus the RTX 4080's 86th further cements its position. Users seeking peak performance in modern DirectX 12 games, ray-traced titles, or compute-heavy professional workloads should choose the RTX 5090 D without hesitation.

However, the choice is not solely about performance. The RTX 4080 offers a lower power draw (320 W vs 575 W), a smaller physical footprint in terms of slot width (triple-slot vs dual-slot, though the RTX 5090 D is shorter and narrower), and a lower launch MSRP of 1,199 USD versus 2,299 USD for the RTX 5090 D. The RTX 4080 also holds higher clock speeds, which may appeal to users in legacy workloads where the architectural advantages of the newer card are less pronounced. For users with power supply constraints or those running older DirectX 9/10/11 applications, the RTX 4080 remains a viable option.

The RTX 5090 D is end-of-life in the database as "Active" production status, while the RTX 4080 is marked "End-of-life." This suggests the newer card is still in production, making it easier to obtain. The RTX 5090 D's predecessor is the GeForce 40 series, which includes the RTX 4080, so the newer card represents a direct generational upgrade. For most users, the performance delta justifies the higher power and cost, but the RTX 4080's lower power draw and lower launch MSRP may suit specific use cases.

FAQ

Q: How much faster is the RTX 5090 D than the RTX 4080 in the 3DMark Steel Nomad DX12 test?

A: The RTX 5090 D scores 14,326 points versus 6,567 points for the RTX 4080, a 118.2% advantage.

Q: What is the memory capacity difference between the two cards?

A: The RTX 5090 D has 32 GB of GDDR7 memory, while the RTX 4080 has 16 GB of GDDR6X memory.

Q: Which card has higher clock speeds?

A: The RTX 4080 has higher base and boost clocks (2,205 MHz and 2,505 MHz) compared to the RTX 5090 D (2,017 MHz and 2,407 MHz).

Q: What is the average benchmark score for each card?

A: The RTX 5090 D averages 77,712 points, while the RTX 4080 averages 54,247 points.

Q: Does the RTX 5090 D support newer display outputs?

A: Yes, it has 1x HDMI 2.1b and 3x DisplayPort 2.1b, whereas the RTX 4080 has 1x HDMI 2.1 and 3x DisplayPort 1.4a.

Q: Which card is in active production?

A: The RTX 5090 D is marked as "Active," while the RTX 4080 is marked as "End-of-life."

Specification Differences

| Specification | NVIDIA GeForce RTX 5090 D | NVIDIA GeForce RTX 4080 |

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

| Series | GeForce 50-series | GeForce 40-series |

| Chip | GB202 | AD103 |

| Architecture | Blackwell 2.0 | Ada Lovelace |

| Generation | GeForce 50 | GeForce 40 |

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

| Die Size | 750 mm² | 379 mm² |

| Transistor Density | 122.9M / mm² | 121.1M / 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 |

| Memory Bus Width | 512 bit | 256 bit |

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

| Shading Units | 21760 | 9728 |

| 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 (LxHxW) | 304 mm x 137 mm x 48 mm | 310 mm x 140 mm x 61 mm |

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

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

| Predecessor | GeForce 40 | GeForce 30 |

| Successor | GeForce 60 | GeForce 50 |

| Launch MSRP | 2,299 USD | 1,199 USD |

| Percentile vs All GPUs | 92 | 86 |

| Average Benchmark Score | 77712 | 54247 |