AMD Radeon RX 6750 XT vs NVIDIA GeForce RTX 3070 Ti Comparison

FAQ

Q: What is the transistor density of the RTX 3070 Ti versus the RX 6750 XT?

A: The RTX 3070 Ti has a transistor density of 44.4 million per square millimeter, while the RX 6750 XT has 51.3 million per square millimeter.

Q: Which card has more RT (ray tracing) cores?

A: The RTX 3070 Ti has 48 RT cores. The RX 6750 XT has 40 RT cores.

Q: What are the FP32 performance figures?

A: The RTX 3070 Ti is rated at 21.75 TFLOPS FP32, while the RX 6750 XT is rated at 13.31 TFLOPS FP32.

Q: How do the memory subsystems compare?

A: The RTX 3070 Ti uses 8 GB of GDDR6X on a 256-bit bus with 608.3 GB/s of bandwidth. The RX 6750 XT uses 12 GB of GDDR6 on a 192-bit bus with 432.0 GB/s.

Q: Which card has more shading units?

A: The RTX 3070 Ti has 6144 shading units, while the RX 6750 XT has 2560.

Architecture Differences

The database records two distinct GPU architectures. NVIDIA's GeForce RTX 3070 Ti is built on the Ampere architecture with the GA104 chip, manufactured at Samsung on an 8 nm process. It integrates 17,400 million transistors on a 392 mm² die. AMD's Radeon RX 6750 XT uses the RDNA 2.0 architecture, built around the Navi 22 chip, fabricated by TSMC on a 7 nm node, with 17,200 million transistors on a 335 mm² die.

The memory subsystems also split along vendor lines. NVIDIA pairs 8 GB of GDDR6X memory with a 256-bit bus, reaching 608.3 GB/s of bandwidth. AMD pairs 12 GB of GDDR6 on a 192-bit bus for 432.0 GB/s. The NVIDIA part shows a higher memory clock at 1188 MHz effective, while AMD's memory runs at 2250 MHz effective. These parameters account for the bandwidth gap between the two.

The compute resources differ substantially. The RTX 3070 Ti has 6144 shading units, 192 texture mapping units, 96 ROPs, 48 RT cores, and 192 tensor cores. The RX 6750 XT has 2560 shading units, 160 texture mapping units, 64 ROPs, and 40 RT cores; it has no tensor cores. NVIDIA also leads in pixel and texture fill rates: 169.9 GPixel/s and 339.8 GTexel/s versus 166.4 GPixel/s and 416.0 GTexel/s for AMD. The NVIDIA card draws 290 W TDP, the AMD card 250 W.

Both cards are dual-slot designs. NVIDIA lists a 12-pin power connector, AMD lists a 6-pin plus an 8-pin. Both recommend a 600 W PSU. Display outputs are effectively identical: NVIDIA has 1x HDMI 2.1 and 3x DisplayPort 1.4a; AMD has 1x HDMI 2.1 and 3x DisplayPort 1.4a.

Head-to-Head Benchmarks

The largest win in the recorded tests belongs to NVIDIA. In 3DMark Steel Nomad DX12, the RTX 3070 Ti scores 3478 versus 2548 for the RX 6750 XT, a 36.5% difference. Geekbench OpenCL sees the NVIDIA at 119718, the AMD at 16360, a 631.8% lead. Vulkan results show a similar spread: 139541 for NVIDIA and 98089 for AMD, a 42.3% advantage.

The NVIDIA card also wins in most DirectX tests. In Passmark DirectX 10, NVIDIA scores 155 versus 125, a 24% edge. In DirectX 11, the gap narrows: 192 vs 180, a 6.7% lead. DirectX 12 again favors NVIDIA: 91 vs 80, 13.8% higher. The two cards swap places in the legacy DirectX 9 test, where AMD scores 263 versus 261, a 0.8% margin. NVIDIA takes back the lead in 2D: 1055 vs 972, 8.5% ahead. In 3D, the winner is NVIDIA with 23356 versus 20700, a 12.8% margin. NVIDIA also wins the GPU compute test, 11601 vs 9550, a 21.5% lead.

The overall win count is decisive: NVIDIA takes 9 tests, AMD takes 1.

Specification Differences

| Field | NVIDIA GeForce RTX 3070 Ti | AMD Radeon RX 6750 XT |

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

| Chip | GA104 | Navi 22 |

| Architecture | Ampere | RDNA 2.0 |

| Process node | 8 nm | 7 nm |

| Foundry | Samsung | TSMC |

| Transistors | 17,400 million | 17,200 million |

| Die size | 392 mm² | 335 mm² |

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

| Memory | 8 GB GDDR6X | 12 GB GDDR6 |

| Memory bus | 256 bit | 192 bit |

| Bandwidth | 608.3 GB/s | 432.0 GB/s |

| Shading units | 6144 | 2560 |

| TMUs | 192 | 160 |

| ROPs | 96 | 64 |

| RT cores | 48 | 40 |

| Tensor cores | 192 | None |

| Pixel rate | 147.9 GPixel/s | 166.4 GPixel/s |

| Texture rate | 339.8 GTexel/s | 416.0 GTexel/s |

| FP32 | 21.75 TFLOPS | 13.31 TFLOPS |

Where Each One Wins

NVIDIA's architecture leads in raw compute. The tensor core count gives it a large lead in FP32 and in any workload that uses tensor cores, which AMD cannot match. It also wins in raw fill rate: higher shading units, TMUs, and ROPs contribute to a 147.9 GPixel/s pixel rate versus 166.4 GPixel/s. The 3070 Ti's texture rate is likewise higher at 339.8 GTexel/s versus 416.0 GTexel/s.

AMD, on the other hand, wins where memory capacity is required. 12 GB of VRAM is 50% more than 8 GB, and can be decisive in high-resolution texture workloads or larger projects. The denser 7 nm TSMC process gives it the density advantage: 51.3M transistors per mm² vs 44.4M. The RX 6750 XT also wins the legacy DirectX 9 test.

The Verdict

From the recorded data, the NVIDIA GeForce RTX 3070 Ti is the faster card in almost every benchmark. It wins 9 out of 10 head-to-head comparisons, often by a significant margin: 36.5% in Steel Nomad DX12, 631.8% in Geekbench OpenCL, 42.3% in Vulkan. Its advantages in compute, rasterization, and API feature support make it the logical choice for users who need maximum performance for NVIDIA-oriented workloads.

The AMD Radeon RX 6750 XT, however, has clear advantages: larger memory capacity (12 GB vs 8 GB), higher memory density, and a more power-efficient design at a lower TDP. It's the right card for the user who needs more VRAM, or who runs older DirectX 9 workloads, or who wants the lower-power option. For pure performance across the database's test suite, the RTX 3070 Ti is the pick.