AMD Radeon RX 6750 XT vs NVIDIA GeForce RTX 3080 Ti Mobile Comparison

The AMD Radeon RX 6750 XT and NVIDIA GeForce RTX 3080 Ti Mobile sit at the same 71st percentile among all GPUs, with average benchmark scores of 26011 and 25740 respectively—a difference of just 1.1%. Over ten head-to-head tests, each card wins exactly five, making this a statistical dead heat that resolves into distinct use cases rather than a single outright victor.

The Verdict

The data splits cleanly by workload type. The AMD Radeon RX 6750 XT is the pick for rasterization and compute workloads: it wins PassMark G3D by 7.3% (20700 vs 19288), PassMark GPU Compute by 12.7% (9550 vs 8471), and DirectX 11 by 9.8% (180 vs 164). The NVIDIA GeForce RTX 3080 Ti Mobile takes every modern API and synthetic test that stresses the full pipeline: 3DMark Steel Nomad DX12 by 11.2% (2869 vs 2548), Geekbench Vulkan by 8.8% (107502 vs 98089), and Geekbench OpenCL by a massive 86.1% (117866 vs 16360). For a desktop user targeting DirectX 9 or 11 legacy titles, or any compute-heavy workload, the RX 6750 XT is the data-backed choice. For anyone running DirectX 12, Vulkan, or OpenCL—particularly on a laptop where the RTX 3080 Ti Mobile's 115 W TDP fits—the NVIDIA card wins outright.

Architecture Differences

The two GPUs come from different foundries and process nodes. AMD uses TSMC's 7 nm process for the Navi 22 chip, while NVIDIA uses Samsung's 8 nm for GA103. The AMD die is smaller at 335 mm² but packs transistors more densely at 51.3M per mm², totaling 17,200 million. NVIDIA's GA103 is larger at 496 mm² with a lower density of 44.4M per mm², reaching 22,000 million transistors. Architecturally, AMD employs RDNA 2.0 with 40 ray-tracing cores and no tensor cores, while NVIDIA's Ampere includes 58 RT cores and 232 tensor cores. The compute unit counts diverge sharply: the RX 6750 XT has 2560 shading units, 160 TMUs, and 64 ROPs; the RTX 3080 Ti Mobile has 7424 shading units, 232 TMUs, and 96 ROPs. Clock speeds invert the raw unit advantage—AMD runs at a 2150 MHz base and 2600 MHz boost, while NVIDIA runs at just 810 MHz base and 1260 MHz boost. Despite far fewer shading units, AMD achieves 13.31 TFLOPS FP32 versus NVIDIA's 18.71 TFLOPS, showing how clock speed and architecture efficiency close the gap. Memory also differs: AMD offers 12 GB GDDR6 on a 192-bit bus at 432.0 GB/s, while NVIDIA offers 16 GB GDDR6 on a 256-bit bus at 512.0 GB/s. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, but NVIDIA adds dedicated tensor cores for AI workloads.

Head-to-Head Benchmarks

The largest single delta is Geekbench OpenCL, where the RTX 3080 Ti Mobile scores 117866 against the RX 6750 XT's 16360—an 86.1% gap. This is the clearest indicator of NVIDIA's compute advantage, likely driven by its 7424 shading units and 232 tensor cores. In 3DMark Steel Nomad DX12, NVIDIA leads 2869 to 2548, an 11.2% margin. Geekbench Vulkan also favors NVIDIA, 107502 to 98089, an 8.8% gap. PassMark DirectX 12 goes to NVIDIA by 9.1% (88 vs 80), and DirectX 10 by 4.6% (131 vs 125).

The AMD card's wins are concentrated in older or less demanding APIs. PassMark DirectX 9 shows a 30.8% lead (263 vs 201)—the second-largest delta in the entire comparison. PassMark G2D favors AMD by 18.8% (972 vs 818), indicating stronger 2D performance. PassMark GPU Compute goes to AMD by 12.7% (9550 vs 8471), a notable reversal given NVIDIA's OpenCL dominance. PassMark G3D favors AMD by 7.3% (20700 vs 19288), and DirectX 11 by 9.8% (180 vs 164). The win count is exactly even at 5-5, but the margins tell the story: NVIDIA's wins include the two biggest deltas (OpenCL and Steel Nomad), while AMD's largest win is DirectX 9, a legacy API.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The AMD Radeon RX 6750 XT averages 26011 across all benchmarks, while the NVIDIA GeForce RTX 3080 Ti Mobile averages 25740. The 1.1% difference places the RTX 3080 Ti Mobile as the RX 6750 XT's nearest rival in the database.

Q: Is the RTX 3080 Ti Mobile better for DirectX 12?

A: Yes. In 3DMark Steel Nomad DX12, the RTX 3080 Ti Mobile scores 2869 versus 2548 for the RX 6750 XT, an 11.2% lead. PassMark DirectX 12 also goes to NVIDIA, 88 to 80, a 9.1% margin.

Q: Does the RX 6750 XT win any modern API tests?

A: It wins PassMark DirectX 11 by 9.8% (180 vs 164) and PassMark G3D by 7.3% (20700 vs 19288). However, it loses DirectX 12, Vulkan, and OpenCL to NVIDIA.

Q: How do the memory subsystems compare?

A: The RTX 3080 Ti Mobile has 16 GB GDDR6 on a 256-bit bus with 512.0 GB/s bandwidth. The RX 6750 XT has 12 GB GDDR6 on a 192-bit bus with 432.0 GB/s bandwidth. NVIDIA leads in capacity, bus width, and bandwidth.

Q: What explains the huge OpenCL score difference?

A: The RTX 3080 Ti Mobile scores 117866 in Geekbench OpenCL versus 16360 for the RX 6750 XT, an 86.1% gap. This aligns with NVIDIA's 7424 shading units and 232 tensor cores, though the specific architectural cause is not detailed in the data.

Q: Are both GPUs end-of-life?

A: Yes, both are marked as end-of-life in the production status field. The RX 6750 XT was released on 2022-03-02, and the RTX 3080 Ti Mobile on 2022-01-24.

Where Each One Wins

The AMD Radeon RX 6750 XT wins in every PassMark category except DirectX 10 and DirectX 12. Its strongest territory is legacy API performance: DirectX 9 (263 vs 201, +30.8%), DirectX 11 (180 vs 164, +9.8%), and 2D operations (G2D 972 vs 818, +18.8%). It also wins PassMark G3D (20700 vs 19288, +7.3%) and PassMark GPU Compute (9550 vs 8471, +12.7%). This makes it the better choice for older game libraries, 2D-heavy desktop workloads, and compute tasks that use the PassMark compute path.

The NVIDIA GeForce RTX 3080 Ti Mobile wins every modern API test in the comparison. Its 3DMark Steel Nomad DX12 score of 2869 beats AMD's 2548 by 11.2%, and Geekbench Vulkan goes to NVIDIA at 107502 versus 98089 (+8.8%). The OpenCL result is decisive: 117866 versus 16360, an 86.1% advantage that dwarfs all other deltas. NVIDIA also wins DirectX 12 (88 vs 80) and DirectX 10 (131 vs 125). For any workload that leverages OpenCL—commonly used in rendering, physics, and GPGPU applications—the RTX 3080 Ti Mobile is the clear data-driven choice.

Specification Differences

| Field | AMD Radeon RX 6750 XT | NVIDIA GeForce RTX 3080 Ti Mobile |

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

| Process node | 7 nm (TSMC) | 8 nm (Samsung) |

| Transistors | 17,200 million | 22,000 million |

| Die size | 335 mm² | 496 mm² |

| Transistor density | 51.3M / mm² | 44.4M / mm² |

| Base clock | 2150 MHz | 810 MHz |

| Boost clock | 2600 MHz | 1260 MHz |

| Memory clock | 2250 MHz / 18 Gbps effective | 2000 MHz / 16 Gbps effective |

| Memory size | 12 GB GDDR6 | 16 GB GDDR6 |

| Memory bus | 192 bit | 256 bit |

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

| Shading units | 2560 | 7424 |

| TMUs | 160 | 232 |

| ROPs | 64 | 96 |

| RT cores | 40 | 58 |

| Tensor cores | None | 232 |

| Pixel rate | 166.4 GPixel/s | 121.0 GPixel/s |

| Texture rate | 416.0 GTexel/s | 292.3 GTexel/s |

| FP32 | 13.31 TFLOPS | 18.71 TFLOPS |

| FP16 | 26.62 TFLOPS (2:1) | 18.71 TFLOPS (1:1) |

| TDP | 250 W | 115 W |

| Power connectors | 1x 6-pin + 1x 8-pin | None |

| Suggested PSU | 600 W | Not specified |

| Slot width | Dual-slot | Not specified |

| Display outputs | 1x HDMI 2.1, 3x DisplayPort 1.4a | Portable Device Dependent |

| Dimensions | 267 mm × 110 mm × 40 mm | Not specified |

| Release date | 2022-03-02 | 2022-01-24 |

| Launch MSRP | 549 USD | Not specified |

| Predecessor | Navi | GeForce 20 Mobile |

| Successor | Navi III | Not specified |

| Game clock | 2495 MHz | Not specified |

The RX 6750 XT is a desktop card with a 250 W TDP and dual-slot cooler, while the RTX 3080 Ti Mobile is a laptop part at 115 W with no specified power connectors or physical dimensions. AMD leads in clock speeds, pixel rate, texture rate, and FP16 throughput, while NVIDIA leads in memory capacity, bandwidth, shading units, RT cores, tensor cores, and FP32 compute. Both share PCIe 4.0 x16, DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4 support.