NVIDIA GeForce RTX 5070 Ti Mobile vs NVIDIA GeForce RTX 5090 Mobile Comparison

The Verdict

The benchmark data positions the NVIDIA GeForce RTX 5090 Mobile as the clear performance leader, winning all nine recorded head-to-head tests against the RTX 5070 Ti Mobile. The RTX 5090 Mobile posts an average benchmark score of 45152, which places it 27.4% above the RTX 5070 Ti Mobile's 35435 average. The RTX 5090 Mobile sits in the 84th percentile of all GPUs, while the RTX 5070 Ti Mobile sits in the 80th percentile.

For users who need maximum compute throughput, the RTX 5090 Mobile is the only choice between these two. Its largest wins come in compute-oriented workloads, with a 42.5% advantage in Geekbench Vulkan and a 40.3% lead in Geekbench OpenCL. The RTX 5070 Ti Mobile is a more modest performer, yet its 60 W TDP and lower specifications make it a lighter-load option within the same Blackwell 2.0 generation.

The RTX 5090 Mobile also compares favorably against its nearest rivals. It is 0.8% ahead of the NVIDIA GeForce RTX 4070 Ti, 0.5% behind the AMD Radeon Pro 5500 XT, 1% behind the Intel Arc A730M, and 1.8% behind the NVIDIA RTX 5880 Ada Generation. The RTX 5070 Ti Mobile, by contrast, is 2.1% ahead of the NVIDIA A2, 0.2% behind the NVIDIA Quadro GV100, 1.2% behind the AMD Radeon Pro Duo, and 2.4% behind the NVIDIA T1000. These rival deltas show that the RTX 5090 Mobile competes in a higher performance tier than the RTX 5070 Ti Mobile.

Architecture Differences

Both GPUs are built on the Blackwell 2.0 architecture, but they use different physical dies. The RTX 5090 Mobile uses the GB203 chip, while the RTX 5070 Ti Mobile uses the GB205 chip. Both are fabricated by TSMC on a 5 nm process, with the RTX 5090 Mobile carrying 45,600 million transistors on a 378 mm² die, giving a transistor density of 120.6 million per square millimeter. The RTX 5070 Ti Mobile carries 31,100 million transistors on a 263 mm² die, for a density of 118.3 million per square millimeter.

The RTX 5090 Mobile features 10496 shading units, 328 TMUs, 112 ROPs, 82 RT cores, and 328 tensor cores. The RTX 5070 Ti Mobile is substantially cut down, with 5888 shading units, 184 TMUs, 80 ROPs, 46 RT cores, and 184 tensor cores. The RTX 5090 Mobile therefore has roughly 78% more shading units, 78% more TMUs, 78% more tensor cores, and 78% more RT cores. The ROP count is closer, with the RTX 5090 Mobile holding a 40% advantage there.

Memory subsystems differ as well. The RTX 5090 Mobile has 24 GB of GDDR7 on a 256 bit bus, producing 896.0 GB/s of bandwidth. The RTX 5070 Ti Mobile has 12 GB of GDDR7 on a 192 bit bus, producing 672.0 GB/s. Both run memory at 1750 MHz with 28 Gbps effective speed, so the bandwidth gap comes entirely from the wider bus on the RTX 5090 Mobile.

Clock behavior is also distinct. The RTX 5090 Mobile runs a 990 MHz base and 1515 MHz boost, while the RTX 5070 Ti Mobile runs a lower 847 MHz base and 1447 MHz boost. The RTX 5090 Mobile combines higher clocks with more cores, which explains its large compute lead. The RTX 5070 Ti Mobile draws 60 W TDP versus the RTX 5090 Mobile's 95 W, a substantial difference for mobile chassis design.

Head-to-Head Benchmarks

The RTX 5090 Mobile wins all nine recorded tests, but the size of the margin varies by workload. The largest delta appears in Geekbench Vulkan, where the RTX 5090 Mobile scores 198405 against 139213, a 42.5% advantage. Geekbench OpenCL shows a similar gap, with 201834 versus 143870, a 40.3% lead. These two tests suggest that general-purpose compute scales strongly with the RTX 5090 Mobile's larger core count and higher bandwidth.

DirectX 12 performance favors the RTX 5090 Mobile by 35.3%, with scores of 138 versus 102. DirectX 10 shows a 21.2% gap, with 183 versus 151. DirectX 11 is the narrowest API-level delta at 13.5%, with 269 versus 237. DirectX 9 shows a 25.1% lead, with 324 versus 259. The pattern across API generations is consistent, with the RTX 5090 Mobile ahead everywhere, but the margin varies from 13.5% to 35.3%. The smallest relative gap in DirectX 11 suggests that legacy driver paths narrow the difference, while the largest gap in DirectX 12 indicates that modern workloads exploit the RTX 5090 Mobile's full feature set.

PassMark G3D, a general gaming and graphics score, gives the RTX 5090 Mobile 30034 versus 24004, a 25.1% lead. PassMark GPU Compute shows 13401 versus 10101, a 32.7% advantage. PassMark G2D, a 2D graphics throughput test, shows the smallest overall delta at 7.7%, with 1057 versus 981. The compute-heavy tests consistently exceed the 25% mark, while the 2D test barely reaches double digits. This split between 2D and 3D performance is notable, as the RTX 5090 Mobile's extra bandwidth and cores do not translate into proportional 2D gains.

Texture rate figures reinforce the FP32 and compute results. The RTX 5090 Mobile reaches 496.7 GTexel/s, while the RTX 5070 Ti Mobile reaches 266.2 GTexel/s. Pixel rate follows with 169.7 GPixel/s versus 115.8 GPixel/s. These rates are derived from the recorded specification fields, not direct measurements, but they align with the benchmark deltas.

Specification Differences

The two GPUs differ in every major specification field. The RTX 5090 Mobile uses the GB203 chip; the RTX 5070 Ti Mobile uses GB205. Transistor count is 45,600 million versus 31,100 million, and die size is 378 mm² versus 263 mm². Transistor density is close, 120.6M per mm² versus 118.3M per mm², so the process is effectively the same.

Clock speeds differ, with the RTX 5090 Mobile at 990 MHz base and 1515 MHz boost, and the RTX 5070 Ti Mobile at 847 MHz base and 1447 MHz boost. Memory speed is identical at 1750 MHz with 28 Gbps effective, but memory size differs at 24 GB versus 12 GB, bus width at 256 bit versus 192 bit, and bandwidth at 896.0 GB/s versus 672.0 GB/s.

Core counts differ across the board. The RTX 5090 Mobile has 10496 shading units, 328 TMUs, 112 ROPs, 82 RT cores, and 328 tensor cores. The RTX 5070 Ti Mobile has 5888 shading units, 184 TMUs, 80 ROPs, 46 RT cores, and 184 tensor cores. Pixel rate is 169.7 GPixel/s versus 115.8 GPixel/s, and texture rate is 496.9 GTexel/s versus 266.2 GTexel/s.

FP32 and FP16 performance are both 31.80 TFLOPS on the RTX 5090 Mobile, with a 1:1 ratio. The RTX 5070 Ti Mobile delivers 17.04 TFLOPS in both, also at 1:1. TDP is 95 W versus 60 W. Both are IGP slot width, have no power connectors, use PCIe 5.0 x16, list portable-device-dependent display outputs, and support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Both are marked Active in production status, and both list GeForce 40 Mobile as their predecessor. The RTX 5070 Ti Mobile released on 2025-02-28, while the RTX 5090 Mobile released on 2025-03-26.

FAQ

Q: Which GPU has higher raw compute performance?

A: The RTX 5090 Mobile. It delivers 31.80 TFLOPS FP32 versus 17.04 TFLOPS on the RTX 5070 Ti Mobile, a 86.6% higher theoretical peak, and it wins every recorded compute benchmark.

Q: How much faster is the RTX 5090 Mobile in DirectX 12?

A: It scores 138 versus 102 in PassMark DirectX 12, a 35.3% advantage. This is the largest API-level delta among the DirectX tests.

Q: What is the memory bandwidth difference?

A: The RTX 5090 Mobile has 896.0 GB/s bandwidth from 24 GB of GDDR7 on a 256 bit bus. The RTX 5070 Ti Mobile has 672.0 GB/s from 12 GB of GDDR7 on a 192 bit bus. That is a 33.3% bandwidth advantage for the RTX 5090 Mobile.

Q: How do the two compare on power draw?

A: The RTX 5090 Mobile has a 95 W TDP, while the RTX 5070 Ti Mobile has a 60 W TDP. The RTX 5070 Ti Mobile draws 36.8% less power, which may matter for thinner laptop designs.

Q: Are there any tests where the RTX 5070 Ti Mobile wins?

A: In the recorded head-to-head data, no. The RTX 5090 Mobile wins all nine tests. The closest margin is PassMark G2D at 7.7%, where the RTX 5090 Mobile scores 1057 versus 981.

Q: How do these GPUs rank against all other GPUs?

A: The RTX 5090 Mobile sits in the 84th percentile of all GPUs, with an average benchmark score of 45152. The RTX 5070 Ti Mobile sits in the 80th percentile, with an average score of 35435.