NVIDIA GeForce RTX 4090 Mobile vs NVIDIA GeForce RTX 5070 Ti Mobile Comparison

# NVIDIA GeForce RTX 4090 Mobile vs NVIDIA GeForce RTX 5070 Ti Mobile

The mobile GPU segment is seeing a direct clash between two distinct architectures. On one side sits the NVIDIA GeForce RTX 4090 Mobile, built on the Ada Lovelace architecture with the AD103 chip. On the other, the new GeForce RTX 5070 Ti Mobile, using the Blackwell 2.0 architecture and GB205 chip. The benchmark database places both firmly in the upper tier of mobile graphics, with the RTX 4090 Mobile at the 84th percentile of all GPUs and the RTX 5070 Ti Mobile at the 80th percentile. The average benchmark score across all recorded tests lands at 43,667 for the Ada part and 35,435 for the Blackwell part. This gap is significant, and the data consistently shows the older chip maintaining a lead across compute and graphics workloads.

Head-to-Head Benchmarks

The most striking result comes from the Geekbench OpenCL test, where the RTX 4090 Mobile scores 180,831 points against the RTX 5070 Ti Mobile's 143,870. That is a 25.7% advantage, the largest delta in the entire suite. The Vulkan test tells a similar story: 170,774 to 139,213, a 22.7% lead for the Ada-based part. These are not marginal differences. The compute advantage is consistent and substantial.

In the DirectX tests, the lead narrows but remains positive. The DirectX 10 test shows 173 versus 151 points, a 14.6% advantage. DirectX 11 results show 262 versus 237, a 10.5% lead. DirectX 12 shows 107 versus 102, a 4.9% advantage. The DirectX 9 test shows a larger gap: 310 versus 259, a 19.7% improvement.

The 2D test is the closest contest. PassMark G2D shows 984 versus 981, a razor-thin 0.3% edge for the RTX 4090 Mobile. In the 3D test, the difference is more pronounced: 27,212 versus 24,004, a 13.4% lead. The GPU compute test shows 12,347 versus 10,101, a 22.2% advantage for the RTX 4090 Mobile. In total, the RTX 4090 Mobile wins 9 of the 9 head-to-head tests, with the RTX 5070 Ti Mobile failing to secure a single victory in this comparison set.

FAQ

Q: Which GPU wins in pure compute workloads?

The data is clear. The GeForce RTX 4090 Mobile wins the Geekbench OpenCL test by 25.7% and the Vulkan test by 22.7%. The PassMark GPU Compute test also goes to the RTX 4090 Mobile by 22.2%. The compute advantage is consistent.

Q: How do the DirectX results compare?

The RTX 4090 Mobile wins every DirectX test. The DirectX 10 score is 173 to 151, a 14.6% gap. DirectX 11 shows 262 to 237, a 10.5% lead. DirectX 12 shows 107 to 102, a 4.9% gap. The DirectX 9 test shows the largest margin in this group at 310 to 259, a 19.7% lead.

Q: Is there any test where the RTX 5070 Ti Mobile is faster?

No. In the recorded data, the RTX 5070 Ti Mobile does not win a single test. It also trails in the average benchmark score, 35,435 versus 43,667, a difference of 18.9% in favor of the RTX 4090 Mobile.

Q: How large is the performance gap in gaming tests?

In the PassMark G3D test, the RTX 4090 Mobile scores 27,212 against 24,004, a 13.4% lead. The 2D test is effectively a tie at 984 versus 981. The compute test has a 22.2% lead.

Q: What is the overall percentile ranking?

The RTX 4090 Mobile sits at the 84th percentile of all GPUs in the database. The RTX 5070 Ti Mobile sits at the 80th percentile. The average benchmark score for the RTX 4090 Mobile is 43,667, for the RTX 5070 Ti Mobile it is 35,435.

The Verdict

The data points to one clear conclusion: the NVIDIA GeForce RTX 4090 Mobile is the faster GPU in this comparison. It wins all nine recorded benchmarks, with the largest leads in compute-heavy tests. The Geekbench OpenCL result is the standout, a 25.7% difference. The Vulkan test also shows a 22.7% gap. The PassMark GPU Compute test gives a 22.2% margin. Even in the closest test, the 2D graphics test, it still edges ahead by 0.3%. The RTX 5070 Ti Mobile is not uncompetitive, but in these tests it is consistently behind. The RTX 4090 Mobile is the safer pick strictly from the benchmark data.

Specification Differences

The two cards differ in several key specifications. The RTX 4090 Mobile has a 45,900 million transistor count on a 379 mm² die, with a density of 121.1 million transistors per square millimeter. The RTX 5070 Ti Mobile has 31,100 million transistors on a 263 mm² die, for a density of 118.3 million per square millimeter. The RTX 4090 is built on a 5nm process at TSMC. The RTX 5070 Ti is also on a 5nm process at TSMC.

Memory is a major split. The RTX 4090 Mobile has 16GB of GDDR6 memory on a 256-bit bus. The RTX 5070 Ti Mobile has 12GB of GDDR7 on a 192-bit bus. The RTX 4090 memory clock runs at 2250 MHz, with an effective data rate of 18 Gbps. The 5070 Ti memory clock is slower at 1750 MHz, with 28 Gbps effective. Memory bandwidth goes to the RTX 4090 Mobile: 576.0 GB/s versus 672.0 GB/s for the RTX 5070 Ti. The higher memory bandwidth for the RTX 4090 Mobile contradicts the smaller number of effective Gbps, but the bus width and clock speed combined yield a larger bandwidth.

The shading units also differ. The RTX 4090 Mobile has 9,728 shading units, 304 TMUs, and 112 ROPs. The RTX 5070 Ti Mobile has 5,888 shading units, 184 TMUs, and 80 ROPs. Ray tracing cores: 76 on the RTX 4090 Mobile, 46 on the RTX 5070 Ti Mobile. Tensor cores: the RTX 4090 Mobile has 304, the RTX 5070 Ti Mobile has 184. The RTX 4090 Mobile has a higher pixel rate of 189.8 GPixel/s and a texture rate of 515.3 GTexel/s. The RTX 5070 Ti Mobile has a pixel rate of 115.8 GPixel/s and a texture rate of 266.2 GTexel/s.

Specification Differences

| Specification | RTX 4090 Mobile | RTX 5070 Ti Mobile |

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

| Architecture | Ada Lovelace | Blackwell 2.0 |

| Process | 5 nm | 5 nm |

| Transistors | 45,900 million | 31,100 million |

| Die size | 379 mm² | 263 mm² |

| Memory | 16 GB GDDR6 | 12 GB GDDR7 |

| Memory bus | 256 bit | 192 bit |

| Boost clock | 1695 MHz | 1447 MHz |

| Shading units | 9728 | 5888 |

| TMUs | 304 | 184 |

| ROPs | 112 | 80 |

| RT cores | 76 | 46 |

| Tensor cores | 304 | 184 |

| FP32 | 32.98 TFLOPS | 17.04 TFLOPS |

| Memory bandwidth | 576.0 GB/s | 672.0 GB/s |

| Bus interface | PCIe 4.0 x16 | PCIe 5.0 x16 |

The RTX 4090 Mobile leads in nearly every specification. It has more shading units, more texture units, more ROPs, more ray tracing cores, and more tensor cores. The only difference is the memory type and the bus width. The 4090 uses GDDR6 and 256-bit bus, while the 5070 Ti uses newer GDDR7 on a 192-bit bus. The bandwidth of the 5070 Ti is higher despite the narrower bus, but other compute features are significantly higher on the 4090. The 4090 also has higher clock speeds, a 1695 MHz boost versus 1447 MHz. The power target is identical at 120 W for both, but the database does not list the power connectors or the PSU suggestion, both are portable device dependent. Both support the same API list: DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4.