AMD Radeon RX 7700 XT vs NVIDIA GeForce RTX 3080 Ti Mobile Comparison

Head-to-Head Benchmarks

The recorded data shows a decisive overall win for the AMD Radeon RX 7700 XT, which takes 7 of the 10 head-to-head benchmark comparisons. The NVIDIA GeForce RTX 3080 Ti Mobile claims only 3 wins, but those wins are striking in magnitude and reveal a specific strength in one API path.

The largest single margin in the entire comparison belongs to NVIDIA in Geekbench Vulkan. The RTX 3080 Ti Mobile scores 107502, while the RX 7700 XT scores 46443. That is a delta of 131.5% in favor of the NVIDIA part, the only triple-digit advantage in the dataset. This result indicates that the mobile Ampere implementation has a substantial lead in low-level Vulkan compute workloads, a gap that dwarfs every other difference recorded.

The RX 7700 XT responds with a broad set of wins across Passmark and 3DMark tests. In Passmark GPU Compute, the AMD card scores 12912 against 8471, a delta of 34.4%. That is the largest percentage win for the RX 7700 XT and shows a clear advantage in general-purpose compute throughput. Passmark DirectX 9 shows a similar pattern: 294 for AMD versus 201 for NVIDIA, a 31.6% lead. Passmark DirectX 11 also favors AMD by 29.3%, with scores of 232 and 164 respectively.

In 3DMark Steel Nomad DX12, the RX 7700 XT scores 3316 against 2869, a 13.5% advantage. Geekbench OpenCL shows AMD ahead by 14.8%, with 138383 versus 117866. Passmark G3D gives AMD a 14.5% lead (22547 versus 19288), and Passmark G2D shows a 29.5% edge for AMD (1161 versus 818).

NVIDIA's other two wins are narrower. Passmark DirectX 12 shows the RTX 3080 Ti Mobile ahead by 11.4% (88 versus 79), and Passmark DirectX 10 gives NVIDIA a 10.1% lead (131 versus 119). These wins are consistent with the Vulkan result: NVIDIA's mobile part tends to do better in newer or lower-level API paths, while AMD dominates the legacy DirectX tests and the compute-oriented workloads.

The average benchmark score tells a similar story. The RTX 3080 Ti Mobile averages 25740 across all recorded tests, placing it in the 71st percentile of all GPUs in the database. The RX 7700 XT averages 22549, placing it in the 67th percentile. The NVIDIA card actually has the higher average score and percentile, which reflects the influence of its massive Vulkan win. The nearest rivals for the RTX 3080 Ti Mobile are the AMD Radeon Pro W5700 (delta 0.1%), AMD FirePro D700 (delta -0.4%), AMD Radeon RX 6700M (delta 0.4%), and AMD FirePro W7100 (delta -0.4%). The RX 7700 XT's nearest rivals are the NVIDIA GeForce RTX 5060 Mobile (delta 0.5%), RTX 4060 Mobile (delta -0.8%), RTX 2080 (delta -1.5%), and AMD Radeon RX 5700 (delta 1.7%).

Architecture Differences

The two GPUs come from fundamentally different design philosophies. NVIDIA's RTX 3080 Ti Mobile uses the GA103 chip built on Ampere architecture, fabricated by Samsung on an 8 nm process. AMD's RX 7700 XT uses the Navi 32 chip with RDNA 3.0 architecture, fabricated by TSMC on a 5 nm node. The process node difference is significant: 8 nm versus 5 nm, which directly affects transistor density. AMD packs 28,100 million transistors into a 346 mm² die, yielding a density of 81.2M per mm². NVIDIA fits 22,000 million transistors into a larger 496 mm² die, for a density of 44.4M per mm². The AMD chip is smaller, denser, and newer.

The compute configuration differs sharply. The RTX 3080 Ti Mobile has 7424 shading units, 232 TMUs, and 96 ROPs. The RX 7700 XT has 3456 shading units, 216 TMUs, and 96 ROPs. Despite having fewer than half the shading units, the AMD card achieves a higher FP32 throughput: 35.17 TFLOPS versus 18.71 TFLOPS. The same pattern appears in FP16, where both cards run at a 1:1 ratio with FP32, so AMD again leads with 35.17 TFLOPS against 18.71 TFLOPS. The clock speeds explain part of this: the RX 7700 XT boosts to 2544 MHz with a base of 1435 MHz, while the RTX 3080 Ti Mobile boosts to only 1260 MHz with a base of 810 MHz.

Ray tracing hardware is present on both, with the NVIDIA card carrying 58 RT cores and AMD carrying 54 RT cores. Tensor cores are exclusive to NVIDIA, which has 232 of them; the AMD card has no tensor core field in the database. Texture and pixel rates favor AMD: the RX 7700 XT delivers 549.5 GTexel/s and 244.2 GPixel/s, while the RTX 3080 Ti Mobile delivers 292.3 GTexel/s and 121.0 GPixel/s.

Memory configurations also diverge. NVIDIA uses 16 GB of GDDR6 on a 256-bit bus, providing 512.0 GB/s of bandwidth at 2000 MHz (16 Gbps effective). AMD uses 12 GB of GDDR6 on a 192-bit bus, providing 432.0 GB/s at 2250 MHz (18 Gbps effective). The NVIDIA card has more memory and more bandwidth, but the AMD card runs its memory at a higher clock speed.

Power and physical characteristics are very different. The RTX 3080 Ti Mobile has a TDP of 115 W and no power connectors, as it is a mobile part. The RX 7700 XT is a desktop card with a 245 W TDP, dual-slot design, and 2x 8-pin power connectors, with a suggested PSU of 550 W. The AMD card is 267 mm long, 135 mm tall, and 50 mm wide. The NVIDIA card has no recorded dimensions, as it is portable-device dependent. Both use PCIe 4.0 x16 interfaces, and both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

The Verdict

The data presents a clear split based on workload type. For compute-heavy tasks, legacy DirectX titles, and general rasterization performance, the AMD Radeon RX 7700 XT is the stronger choice. It wins Passmark GPU Compute by 34.4%, DirectX 9 by 31.6%, DirectX 11 by 29.3%, and 3DMark Steel Nomad DX12 by 13.5%. Its average benchmark score is lower overall, but that is dragged down by the Vulkan result.

For applications that rely on Vulkan compute, the NVIDIA GeForce RTX 3080 Ti Mobile is vastly superior. The 131.5% lead in Geekbench Vulkan is the single most decisive result in this comparison, and the card also wins DirectX 12 and DirectX 10 tests. The RTX 3080 Ti Mobile also has a higher average benchmark score (25740 versus 22549) and a higher percentile rank (71st versus 67th).

The user should pick the RX 7700 XT for gaming across a broad mix of DirectX versions, for OpenCL compute, and for general 2D and 3D workloads. The user should pick the RTX 3080 Ti Mobile for Vulkan-centric applications, for environments where the lower 115 W TDP matters, and for scenarios requiring 16 GB of memory. The RX 7700 XT is an active product with a successor in Navi IV, while the RTX 3080 Ti Mobile is end-of-life, which may factor into long-term driver support considerations.

Specification Differences

| Specification | NVIDIA GeForce RTX 3080 Ti Mobile | AMD Radeon RX 7700 XT |

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

| Architecture | Ampere | RDNA 3.0 |

| Process node | 8 nm (Samsung) | 5 nm (TSMC) |

| Transistors | 22,000 million | 28,100 million |

| Die size | 496 mm² | 346 mm² |

| Transistor density | 44.4M / mm² | 81.2M / mm² |

| Base clock | 810 MHz | 1435 MHz |

| Boost clock | 1260 MHz | 2544 MHz |

| Game clock | None | 2171 MHz |

| Memory size | 16 GB | 12 GB |

| Memory bus | 256 bit | 192 bit |

| Memory bandwidth | 512.0 GB/s | 432.0 GB/s |

| Memory clock | 2000 MHz (16 Gbps effective) | 2250 MHz (18 Gbps effective) |

| Shading units | 7424 | 3456 |

| TMUs | 232 | 216 |

| ROPs | 96 | 96 |

| RT cores | 58 | 54 |

| Tensor cores | 232 | None |

| Pixel rate | 121.0 GPixel/s | 244.2 GPixel/s |

| Texture rate | 292.3 GTexel/s | 549.5 GTexel/s |

| FP32 | 18.71 TFLOPS | 35.17 TFLOPS |

| FP16 | 18.71 TFLOPS (1:1) | 35.17 TFLOPS (1:1) |

| TDP | 115 W | 245 W |

| Slot width | None | Dual-slot |

| Power connectors | None | 2x 8-pin |

| Suggested PSU | None | 550 W |

| Display outputs | Portable Device Dependent | 1x HDMI 2.1a, 2x DisplayPort 2.1, 1x USB Type-C |

| Dimensions | None | 267 mm x 135 mm x 50 mm |

| Production status | End-of-life | Active |

| Release date | 2022-01-24 | 2023-09-05 |

| Launch MSRP | None | 449 USD |

FAQ

Q: Which GPU has the higher average benchmark score?

A: The NVIDIA GeForce RTX 3080 Ti Mobile has a higher average score of 25740, compared to 22549 for the AMD Radeon RX 7700 XT.

Q: How large is the Vulkan performance gap?

A: In Geekbench Vulkan, the RTX 3080 Ti Mobile scores 107502 versus 46443 for the RX 7700 XT, a 131.5% lead for NVIDIA.

Q: Which GPU wins in OpenCL compute?

A: The AMD Radeon RX 7700 XT wins Geekbench OpenCL with a score of 138383, ahead of the NVIDIA card's 117866, a 14.8% advantage.

Q: What is the memory bandwidth difference?

A: The RTX 3080 Ti Mobile offers 512.0 GB/s over a 256-bit bus, while the RX 7700 XT offers 432.0 GB/s over a 192-bit bus.

Q: How do the TDPs compare?

A: The RTX 3080 Ti Mobile has a TDP of 115 W with no power connectors, while the RX 7700 XT has a TDP of 245 W with 2x 8-pin connectors.

Q: Which GPU has more shading units?

A: The RTX 3080 Ti Mobile has 7424 shading units, more than double the RX 7700 XT's 3456, yet the AMD card delivers higher FP32 throughput.