NVIDIA GeForce RTX 4090 Max-Q vs NVIDIA GeForce RTX 5080 SUPER Comparison

Where Each One Wins

The data splits these two NVIDIA mobile and desktop parts into entirely different performance classes. The GeForce RTX 5080 SUPER holds every measurable performance advantage in the database, with no benchmark wins recorded for the RTX 4090 Max-Q. The 5080 SUPER delivers 56.28 TFLOPS of FP32 compute versus 28.31 TFLOPS for the 4090 Max-Q, a 98.8% raw compute advantage that carries through texture and pixel throughput.

For gaming and rendering workloads that rely on rasterization, the 5080 SUPER posts 879.3 GTexel/s of texture fill rate against 442.3 GTexel/s, and 293.1 GPixel/s of pixel fill rate versus 163.0 GPixel/s. These figures indicate the 5080 SUPER is effectively twice as fast in fill-rate-limited scenarios. The 4090 Max-Q, by contrast, is positioned for constrained thermal envelopes with its 80 W TDP, making it the appropriate choice for thin, portable systems where sustained load is secondary to physical limits.

Memory capacity and bandwidth further separate the two. The 5080 SUPER carries 24 GB of GDDR7 on a 256 bit bus, delivering 1.02 TB/s of bandwidth. The 4090 Max-Q uses 16 GB of GDDR6 on the same bus width, producing 576.0 GB/s. That 443.9 GB/s bandwidth gap means the 5080 SUPER handles large textures, high-resolution assets, and data-intensive workloads with considerably more headroom.

The 5080 SUPER also carries more execution resources: 10,752 shading units, 336 TMUs, 84 RT cores, and 336 tensor cores versus 9,728 shading units, 304 TMUs, 76 RT cores, and 304 tensor cores on the 4090 Max-Q. Every parallel-processing dimension favors the newer part, so the conclusion is unambiguous: the 5080 SUPER wins all recorded performance categories, while the 4090 Max-Q wins only in the power-efficiency and integration trade-off.

Architecture Differences

The two GPUs come from different NVIDIA architectures and process nodes, though both use a 5 nm TSMC process. The 4090 Max-Q is built on Ada Lovelace with the AD103 chip, containing 45,900 million transistors on a 379 mm² die. The 5080 SUPER uses Blackwell 2.0 with the GB203 chip, holding 45,600 million transistors on a 378 mm² die. Transistor density is nearly identical: 121.1 million per mm² for Ada Lovelace versus 120.6 million per mm² for Blackwell 2.0. The architectural shift, not the process, explains the performance delta.

Clock speeds differ substantially. The 4090 Max-Q runs a 930 MHz base clock and 1455 MHz boost, while the 5080 SUPER starts at 2295 MHz base and boosts to 2617 MHz. That 1162 MHz base-clock advantage and 1162 MHz boost-clock advantage translate directly into higher throughput per instruction cycle. The 4090 Max-Q's low clocks reflect its 80 W TDP and integrated form factor, whereas the 5080 SUPER's 415 W TDP allows far more aggressive operating points.

Memory technology also diverges. The 4090 Max-Q uses GDDR6 at 2250 MHz with 18 Gbps effective speed, yielding 576.0 GB/s across a 256 bit interface. The 5080 SUPER moves to GDDR7 at 2000 MHz with 32 Gbps effective speed, producing 1.02 TB/s on the same 256 bit bus. The newer memory standard doubles effective data rates per pin, which explains the bandwidth leap without a wider bus.

Interface and physical design differ as well. The 4090 Max-Q is an IGP with no power connectors and a portable-device-dependent display output, fitting directly into laptops. The 5080 SUPER is a dual-slot card measuring 304 mm by 137 mm by 40 mm, requiring a 1x 16-pin power connector and offering 1x HDMI 2.1b plus 3x DisplayPort 2.1b outputs. The 5080 SUPER also uses PCIe 5.0 x16, while the 4090 Max-Q is limited to PCIe 4.0 x16.

Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API-level feature parity exists. The RT core and tensor core counts are higher on the 5080 SUPER (84 versus 76, and 336 versus 304 respectively), indicating more dedicated hardware for ray tracing and AI workloads. The production status for both is listed as Active, with the 4090 Max-Q released in January 2023 and the 5080 SUPER dated for late December 2025.

Head-to-Head Benchmarks

The database records one benchmark for the 5080 SUPER: 3DMark Steel Nomad DX12, where it scores 3075. That places it in the 19th percentile of all GPUs in the database. The 4090 Max-Q has no recorded benchmark scores and a percentile ranking of 50, but with an average score of zero, its position reflects missing data rather than measured performance.

The 5080 SUPER's nearest rivals provide context for its score. The NVIDIA Quadro P1000 averages 3163, which is 2.8% higher than the 5080 SUPER's result. The Intel Arc Pro B60 scores 3182, 3.4% higher. On the lower side, the NVIDIA GeForce 820A averages 2983, 3.1% below the 5080 SUPER, and the NVIDIA GeForce GTX 860M scores 2967, 3.6% lower. These deltas show the 5080 SUPER sits in a tight cluster where the difference between adjacent GPUs is under 4%, despite the massive architectural gap versus the 4090 Max-Q.

Within the direct comparison, the 5080 SUPER's FP32 throughput of 56.28 TFLOPS is exactly double the 4090 Max-Q's 28.31 TFLOPS. FP16 performance follows the same 1:1 ratio for both, indicating no half-precision acceleration advantage for either part. Texture rate shows a 437.0 GTexel/s gap (879.3 versus 442.3), and pixel rate shows a 130.1 GPixel/s gap (293.1 versus 163.0). The memory bandwidth difference of 443.9 GB/s reinforces the compute gap.

The 5080 SUPER's 24 GB frame buffer versus 16 GB gives it 50% more capacity, which matters for large datasets and high-resolution rendering. Its boost clock of 2617 MHz is 1162 MHz higher than the 4090 Max-Q's boost, and its base clock of 2295 MHz is 1365 MHz higher. These clock advantages compound with the additional shading units and TMUs to produce the near-doubling of throughput metrics.

The Verdict

The recorded data supports a clear selection based on workload and system constraints. For desktop or high-performance laptop users who prioritize raw speed, the GeForce RTX 5080 SUPER is the only choice. It doubles FP32 compute, delivers 437.0 GTexel/s more texture throughput, 130.1 GPixel/s more pixel throughput, and 443.9 GB/s more memory bandwidth than the 4090 Max-Q. Its 24 GB GDDR7 frame buffer also exceeds the 4090 Max-Q's 16 GB GDDR6 capacity by 8 GB.

For users constrained to ultraportable or integrated designs, the 4090 Max-Q fills a specific role. Its 80 W TDP, IGP form factor, and no power connector requirement make it suitable for thin laptops where a 415 W dual-slot card with a 16-pin connector cannot physically fit. The 4090 Max-Q's performance remains substantial for its class, but the database shows no benchmark where it outperforms the 5080 SUPER.

The 5080 SUPER's 3DMark Steel Nomad score of 3075, while only in the 19th percentile of all GPUs, still represents a functional baseline. Its nearest rivals (Quadro P1000 at 3163, Arc Pro B60 at 3182, GeForce 820A at 2983, GTX 860M at 2967) surround it within a 3.6% spread, meaning the 5080 SUPER sits in a competitive mid-range grouping despite its high-end specifications relative to the 4090 Max-Q. The 4090 Max-Q has no comparable recorded score, so direct benchmark comparison is limited to the architectural and throughput metrics.

The decision hinges on physical deployment: the 5080 SUPER requires a full expansion slot, 415 W of power delivery, and a 304 mm length, while the 4090 Max-Q exists as an integrated mobile solution. Given identical transistor counts and die sizes, the performance difference stems entirely from power budget, clock speeds, and memory generation. Users who can accommodate the 5080 SUPER's power and size should choose it without hesitation. Users who cannot should accept the 4090 Max-Q's lower throughput as the trade-off for mobility.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The NVIDIA GeForce RTX 5080 SUPER delivers 56.28 TFLOPS, which is double the 28.31 TFLOPS of the NVIDIA GeForce RTX 4090 Max-Q.

Q: How much memory bandwidth does each GPU provide?

A: The RTX 5080 SUPER provides 1.02 TB/s using 24 GB of GDDR7 on a 256 bit bus. The RTX 4090 Max-Q provides 576.0 GB/s using 16 GB of GDDR6 on the same 256 bit bus width.

Q: What is the power consumption difference?

A: The RTX 4090 Max-Q has an 80 W TDP and uses no power connectors as an IGP. The RTX 5080 SUPER has a 415 W TDP and requires a 1x 16-pin power connector.

Q: What process node and die size do both GPUs use?

A: Both use a 5 nm TSMC process. The RTX 4090 Max-Q has a 379 mm² die with 45,900 million transistors, while the RTX 5080 SUPER has a 378 mm² die with 45,600 million transistors.

Q: What is the RTX 5080 SUPER's benchmark score and closest rival?

A: The RTX 5080 SUPER scores 3075 in 3DMark Steel Nomad DX12. Its nearest rival is the NVIDIA Quadro P1000 with an average score of 3163, which is 2.8% higher.

Q: Which GPU has more RT and tensor cores?

A: The RTX 5080 SUPER has 84 RT cores and 336 tensor cores. The RTX 4090 Max-Q has 76 RT cores and 304 tensor cores.

Specification Differences

| Specification | NVIDIA GeForce RTX 4090 Max-Q | NVIDIA GeForce RTX 5080 SUPER |

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

| Architecture | Ada Lovelace | Blackwell 2.0 |

| Chip | AD103 | GB203 |

| Generation | GeForce 40 Mobile | GeForce 50 |

| Transistors | 45,900 million | 45,600 million |

| Die Size | 379 mm² | 378 mm² |

| Transistor Density | 121.1M / mm² | 120.6M / mm² |

| Base Clock | 930 MHz | 2295 MHz |

| Boost Clock | 1455 MHz | 2617 MHz |

| Memory Size | 16 GB | 24 GB |

| Memory Type | GDDR6 | GDDR7 |

| Memory Clock | 2250 MHz, 18 Gbps effective | 2000 MHz, 32 Gbps effective |

| Memory Bus Width | 256 bit | 256 bit |

| Memory Bandwidth | 576.0 GB/s | 1.02 TB/s |

| Shading Units | 9728 | 10752 |

| TMUs | 304 | 336 |

| ROPs | 112 | 112 |

| RT Cores | 76 | 84 |

| Tensor Cores | 304 | 336 |

| Pixel Rate | 163.0 GPixel/s | 293.1 GPixel/s |

| Texture Rate | 442.3 GTexel/s | 879.3 GTexel/s |

| FP32 | 28.31 TFLOPS | 56.28 TFLOPS |

| FP16 | 28.31 TFLOPS (1:1) | 56.28 TFLOPS (1:1) |

| TDP | 80 W | 415 W |

| Slot Width | IGP | Dual-slot |

| Power Connectors | None | 1x 16-pin |

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

| Display Outputs | Portable Device Dependent | 1x HDMI 2.1b, 3x DisplayPort 2.1b |

| Dimensions | Not specified | 304 mm x 137 mm x 40 mm |

| Release Date | 2023-01-02 | 2025-12-31 |

| Launch MSRP | None | 999 USD |