NVIDIA GeForce RTX 4090 Mobile vs NVIDIA GeForce RTX 5080 SUPER Comparison

FAQ

Q: Which GPU has the higher average benchmark score in the database?

A: The NVIDIA GeForce RTX 4090 Mobile records a substantially higher average benchmark score of 43,667, while the NVIDIA GeForce RTX 5080 SUPER holds an average score of 3,075. The RTX 4090 Mobile also ranks in the 84th percentile among all GPUs, whereas the RTX 5080 SUPER sits in the 19th percentile.

Q: How does the RTX 5080 SUPER compare to its nearest rivals in the database?

A: The data shows the RTX 5080 SUPER trails the NVIDIA Quadro P1000 by 2.8% and the Intel Arc Pro B60 by 3.4% in average score. It leads the NVIDIA GeForce 820A by 3.1% and the NVIDIA GeForce GTX 860M by 3.6%. These deltas are based on the recorded average benchmark scores of each GPU.

Q: What memory configurations do the two GPUs use?

A: The RTX 4090 Mobile uses 16 GB of GDDR6 memory on a 256-bit bus, delivering 576.0 GB/s of bandwidth. The RTX 5080 SUPER uses 24 GB of GDDR7 memory on the same 256-bit bus width, delivering 1.02 TB/s of bandwidth.

Q: What are the power requirements for each card?

A: The RTX 4090 Mobile has a TDP of 120 W and uses no power connectors, fitting an IGP slot width. The RTX 5080 SUPER has a TDP of 415 W, requires a single 16-pin power connector, and occupies a dual-slot width.

Q: Which GPU has the higher boost clock speed?

A: The RTX 5080 SUPER boosts to 2617 MHz, while the RTX 4090 Mobile boosts to 1695 MHz. The base clocks also differ, with the RTX 5080 SUPER at 2295 MHz and the RTX 4090 Mobile at 1335 MHz.

Q: What API support do both GPUs share?

A: Both GPUs support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The RTX 4090 Mobile uses a PCIe 4.0 x16 bus interface, while the RTX 5080 SUPER uses PCIe 5.0 x16.

Architecture Differences

The two NVIDIA GPUs represent distinct generations and silicon designs. The RTX 4090 Mobile is built on the AD103 chip using the Ada Lovelace architecture, while the RTX 5080 SUPER uses the GB203 chip with the Blackwell 2.0 architecture. Both are manufactured by TSMC on a 5 nm process node, but the transistor counts and die sizes are very close: the AD103 contains 45,900 million transistors on a 379 mm² die, and the GB203 contains 45,600 million transistors on a 378 mm² die. This results in nearly identical transistor densities, 121.1M per mm² for the RTX 4090 Mobile versus 120.6M per mm² for the RTX 5080 SUPER.

Core configuration differs significantly. The RTX 4090 Mobile has 9,728 shading units, 304 texture mapping units, and 112 ROPs. It also includes 76 RT cores and 304 tensor cores. The RTX 5080 SUPER increases the shading units to 10,752, the TMUs to 336, and keeps the ROP count at 112. It adds more RT cores at 84 and more tensor cores at 336. These core counts translate into different compute throughput figures: the RTX 4090 Mobile delivers 32.98 TFLOPS for both FP32 and FP16 (1:1), while the RTX 5080 SUPER delivers 56.28 TFLOPS for both FP32 and FP16 (1:1).

Memory architecture also separates the two. The RTX 4090 Mobile uses 16 GB of GDDR6 running at 2250 MHz with an 18 Gbps effective rate, producing 576.0 GB/s bandwidth. The RTX 5080 SUPER uses 24 GB of GDDR7 running at 2000 MHz with a 32 Gbps effective rate, producing 1.02 TB/s bandwidth. Both share a 256-bit memory bus. The RTX 5080 SUPER also offers a broader display output set with 1x HDMI 2.1b and 3x DisplayPort 2.1b, while the RTX 4090 Mobile's display outputs are portable device dependent. The RTX 5080 SUPER is a dual-slot card measuring 304 mm in length, 137 mm in height, and 40 mm in width, whereas the RTX 4090 Mobile is an integrated graphics processor with no slot width. The bus interface differs as well: PCIe 4.0 x16 for the RTX 4090 Mobile versus PCIe 5.0 x16 for the RTX 5080 SUPER.

Head-to-Head Benchmarks

Direct head-to-head benchmark comparisons are not available in the database, as the head-to-head results list is empty. However, the individual benchmark records for the RTX 4090 Mobile provide a detailed picture of its performance across multiple tests, while the RTX 5080 SUPER has only a single recorded benchmark. The RTX 4090 Mobile scores 180,831 in Geekbench OpenCL and 170,774 in Geekbench Vulkan. In PassMark tests, it records 173 for DirectX 10, 262 for DirectX 11, 107 for DirectX 12, and 310 for DirectX 9. It also posts 984 for G2D, 27,212 for G3D, and 12,347 for GPU compute. The average benchmark score for the RTX 4090 Mobile is 43,667, placing it in the 84th percentile of all GPUs.

The RTX 5080 SUPER has a single recorded result: 3,075 in 3DMark Steel Nomad DX12. Its average benchmark score is 3,075, which places it in the 19th percentile. The database shows that the RTX 5080 SUPER's nearest rivals include the NVIDIA Quadro P1000 with an average score of 3,163 (2.8% higher), the Intel Arc Pro B60 with 3,182 (3.4% higher), the NVIDIA GeForce 820A with 2,983 (3.1% lower), and the NVIDIA GeForce GTX 860M with 2,967 (3.6% lower). These deltas indicate that the RTX 5080 SUPER sits in a performance band around the 3,000 average score mark, far below the RTX 4090 Mobile's recorded average.

The RTX 4090 Mobile's nearest rivals, by contrast, cluster near its average score. The NVIDIA Quadro M6000 averages 43,301 (0.8% lower), the NVIDIA GeForce RTX 5050 Mobile averages 43,268 (0.9% lower), the NVIDIA Quadro M6000 24 GB averages 43,262 (0.9% lower), and the NVIDIA RTX A6000 averages 44,075 (0.9% higher). This places the RTX 4090 Mobile in a competitive field of high-end workstation and mobile GPUs, with deltas of less than 1% in either direction. The recorded data confirms that the RTX 4090 Mobile's multi-test average is over 14 times higher than the RTX 5080 SUPER's single-test score.

The Verdict

The recorded data indicates a clear performance hierarchy between these two GPUs. The RTX 4090 Mobile, with an average benchmark score of 43,667 and an 84th percentile ranking, outperforms the RTX 5080 SUPER, which averages 3,075 and ranks in the 19th percentile. The RTX 4090 Mobile also has a much broader benchmark profile, with scores across Geekbench OpenCL, Geekbench Vulkan, and multiple PassMark tests, whereas the RTX 5080 SUPER has only one recorded 3DMark result.

For users prioritizing raw compute performance based on the database measurements, the RTX 4090 Mobile is the stronger choice. Its nearest rivals include the NVIDIA RTX A6000, which is only 0.9% faster on average, and the Quadro M6000 variants, which are 0.8% to 0.9% slower. The RTX 5080 SUPER, in contrast, competes with much lower-performing GPUs like the Quadro P1000 and GTX 860M, with deltas under 4%. The RTX 5080 SUPER does offer a higher boost clock, more shading units, more RT cores, more tensor cores, and a larger GDDR7 memory pool, but the benchmark data does not reflect those specifications in higher average scores. The RTX 4090 Mobile also consumes far less power at 120 W versus 415 W, making it more suitable for integrated portable designs.

Specification Differences

The two GPUs differ across nearly every core specification. The RTX 4090 Mobile uses the AD103 chip with Ada Lovelace architecture, while the RTX 5080 SUPER uses the GB203 chip with Blackwell 2.0 architecture. The RTX 4090 Mobile has 45,900 million transistors on a 379 mm² die, while the RTX 5080 SUPER has 45,600 million on a 378 mm² die. Base clocks are 1335 MHz for the RTX 4090 Mobile and 2295 MHz for the RTX 5080 SUPER. Boost clocks are 1695 MHz versus 2617 MHz, respectively.

Memory configurations diverge: 16 GB GDDR6 at 18 Gbps effective with 576.0 GB/s bandwidth for the RTX 4090 Mobile, versus 24 GB GDDR7 at 32 Gbps effective with 1.02 TB/s bandwidth for the RTX 5080 SUPER. Both use a 256-bit bus. Shading units count 9,728 on the RTX 4090 Mobile and 10,752 on the RTX 5080 SUPER. TMUs are 304 versus 336, while ROPs are identical at 112. RT cores number 76 versus 84, and tensor cores number 304 versus 336. Pixel rate is 189.8 GPixel/s for the RTX 4090 Mobile and 293.1 GPixel/s for the RTX 5080 SUPER. Texture rate is 515.3 GTexel/s versus 879.3 GTexel/s. FP32 and FP16 performance is 32.98 TFLOPS versus 56.28 TFLOPS.

Power and physical characteristics also differ. The RTX 4090 Mobile has a TDP of 120 W, uses an IGP slot width, and has no power connectors. The RTX 5080 SUPER has a TDP of 415 W, uses a dual-slot form factor, and requires one 16-pin power connector. The RTX 5080 SUPER has listed dimensions of 304 mm length, 137 mm height, and 40 mm width. The RTX 4090 Mobile has no recorded dimensions. Bus interfaces are PCIe 4.0 x16 for the RTX 4090 Mobile and PCIe 5.0 x16 for the RTX 5080 SUPER. Display outputs are portable device dependent for the RTX 4090 Mobile, while the RTX 5080 SUPER offers 1x HDMI 2.1b and 3x DisplayPort 2.1b. Release dates are January 2023 for the RTX 4090 Mobile and December 2025 for the RTX 5080 SUPER. The RTX 4090 Mobile lists a predecessor (GeForce 30 Mobile) and successor (GeForce 50 Mobile), while the RTX 5080 SUPER has neither listed.

Where Each One Wins

The RTX 4090 Mobile wins decisively in benchmark performance based on the recorded data. Its average score of 43,667 dwarfs the RTX 5080 SUPER's 3,075. It also wins in the percentile ranking, 84 versus 19. The RTX 4090 Mobile shows strength across a wide range of tests, including Geekbench OpenCL at 180,831, Geekbench Vulkan at 170,774, and PassMark G3D at 27,212. Its PassMark GPU compute score of 12,347 further demonstrates compute capability. The RTX 4090 Mobile also wins on power efficiency, with a 120 W TDP versus 415 W, and on form factor, as an IGP with no power connectors versus a dual-slot card with a 16-pin connector.

The RTX 5080 SUPER wins on raw specifications that do not appear in benchmark scores. It has a higher boost clock at 2617 MHz versus 1695 MHz, more shading units at 10,752 versus 9,728, more RT cores at 84 versus 76, and more tensor cores at 336 versus 304. It delivers higher pixel rate at 293.1 GPixel/s versus 189.8 GPixel/s, higher texture rate at 879.3 GTexel/s versus 515.3 GTexel/s, and higher FP32/FP16 throughput at 56.28 TFLOPS versus 32.98 TFLOPS. It also offers more memory capacity at 24 GB versus 16 GB, faster GDDR7 memory with 1.02 TB/s bandwidth versus 576.0 GB/s, and a newer PCIe 5.0 x16 interface. The RTX 5080 SUPER has a dedicated dual-slot cooling design and a full set of display outputs, while the RTX 4090 Mobile relies on portable device dependent outputs.

The RTX 4090 Mobile wins for users who need proven, broad-spectrum benchmark performance in a low-power integrated form factor. The RTX 5080 SUPER wins for users who prioritize higher clock speeds, larger memory capacity, and newer generation memory technology, based on its specification sheet. The benchmark database, however, currently records only one test for the RTX 5080 SUPER, so its measured performance profile is far less complete than that of the RTX 4090 Mobile.