NVIDIA GeForce RTX 3070 Ti vs NVIDIA GeForce RTX 5070 Mobile Comparison

The NVIDIA GeForce RTX 3070 Ti and the NVIDIA GeForce RTX 5070 Mobile occupy the same performance class according to aggregate data, with the desktop card posting an average benchmark score of 29,945 against the mobile chip's 29,928—a negligible 0.1% difference. Both sit at the 75th percentile of all GPUs, placing them in the upper-middle tier of the performance hierarchy. Despite this near-identical overall output, the two cards achieve their scores through radically different means, and the head-to-head results reveal a clear split: the RTX 3070 Ti wins seven of nine benchmark comparisons, while the RTX 5070 Mobile takes only two. The story is not one of equality but of divergent strengths, with the older Ampere card dominating compute and legacy APIs while the newer Blackwell chip counters in specific synthetic workloads.

Where Each One Wins

The RTX 3070 Ti is the clear winner for compute-heavy and legacy API workloads. Its most decisive victory comes in the PassMark GPU Compute test, where it scores 11,601 against the RTX 5070 Mobile's 8,279—a commanding 40.1% lead. This suggests the desktop card is substantially better suited for tasks that leverage raw shader throughput or GPGPU processing, making it the stronger choice for productivity applications that rely on compute performance rather than gaming-specific features. The desktop card also wins decisively in older DirectX tests: it leads by 22% in PassMark DirectX 9 (261 vs 214) and by 20.2% in DirectX 10 (155 vs 129). These margins indicate that the RTX 3070 Ti's architecture retains a significant advantage in backward compatibility and legacy software execution.

The RTX 3070 Ti also dominates in general 3D rendering, posting a PassMark G3D score of 23,356 versus 20,355 for the RTX 5070 Mobile, a 14.7% advantage. Its 2D performance is similarly superior, with a PassMark G2D score of 1,055 against 896, a 17.7% gap. In the Vulkan API, the desktop card's lead is substantial at 19.3%, scoring 139,541 versus 116,960. These results paint a picture of a card that simply has more raw horsepower in most rendering scenarios, likely due to its higher clock speeds and larger memory bus.

The RTX 5070 Mobile wins in exactly two areas. Its Geekbench OpenCL score of 122,238 edges out the RTX 3070 Ti's 119,718 by 2.1%, indicating a slight advantage in this particular compute benchmark that may reflect the newer architecture's efficiency in certain workloads. It also wins the PassMark DirectX 12 test, scoring 93 versus 91, a 2.2% margin that is nearly negligible. The two cards tie exactly in PassMark DirectX 11 at 192 apiece. For gaming, the RTX 3070 Ti is the stronger performer in aggregate, but the RTX 5070 Mobile's wins suggest it has architectural optimizations that pay off in specific modern API scenarios.

Architecture Differences

The two GPUs represent fundamentally different design philosophies separated by two generations of NVIDIA architecture. The RTX 3070 Ti uses the GA104 chip built on Ampere architecture, fabricated on Samsung's 8 nm process. It packs 17,400 million transistors into a 392 mm² die, yielding a transistor density of 44.4 million per square millimeter. In contrast, the RTX 5070 Mobile uses the GB206 chip on Blackwell 2.0 architecture, manufactured by TSMC on a 5 nm process. This newer chip contains 21,900 million transistors but in a much smaller 181 mm² die, achieving a density of 121.0 million transistors per square millimeter—nearly three times the density of the Ampere part.

The desktop card compensates for its older process with sheer scale. It features 6,144 shading units, 192 texture mapping units, and 96 raster output pipelines, alongside 48 RT cores and 192 tensor cores. The mobile chip is leaner by comparison, with 4,608 shading units, 144 TMUs, and only 48 ROPs, plus 36 RT cores and 144 tensor cores. This reduction in execution resources explains why the RTX 3070 Ti achieves 21.75 TFLOPS of FP32 performance against the RTX 5070 Mobile's 13.13 TFLOPS. The desktop card also has significantly higher pixel and texture rates: 169.9 GPixel/s and 339.8 GTexel/s versus 68.40 GPixel/s and 205.2 GTexel/s respectively.

Memory configuration further separates the two. The RTX 3070 Ti uses 8 GB of GDDR6X on a 256-bit bus, delivering 608.3 GB/s of bandwidth. The RTX 5070 Mobile also has 8 GB of memory but uses GDDR7 on a 128-bit bus, yielding 384.0 GB/s—a 37% reduction in bandwidth. The desktop card's clock speeds are far more aggressive: its base clock is 1,575 MHz with a boost of 1,770 MHz, while the mobile part runs at a conservative 907 MHz base and 1,425 MHz boost. This is a direct consequence of power constraints, with the RTX 3070 Ti rated at 290 W TDP compared to just 50 W for the mobile chip.

The power and form factor differences are stark. The RTX 3070 Ti is a dual-slot desktop card requiring a single 12-pin power connector and a 600 W suggested power supply, while the RTX 5070 Mobile is an integrated graphics processor (IGP) with no power connectors and no suggested PSU. The desktop card measures 267 mm in length and 112 mm in height, whereas the mobile chip has no listed dimensions as it is designed for soldering onto laptop motherboards. The RTX 5070 Mobile supports PCIe 5.0 x16, a generational leap over the RTX 3070 Ti's PCIe 4.0 x16, though this advantage is unlikely to matter at these performance levels.

Head-to-Head Benchmarks

The most lopsided result in the entire comparison is the PassMark GPU Compute test, where the RTX 3070 Ti's 11,601 score crushes the RTX 5070 Mobile's 8,279 by 40.1%. This is the single largest delta in either direction and underscores the desktop card's dominance in non-graphics compute workloads. The result is likely driven by the RTX 3070 Ti's 44.4% higher FP32 throughput (21.75 vs 13.13 TFLOPS) and its 6,144 shading units versus 4,608.

In legacy DirectX performance, the RTX 3070 Ti posts a 22% win in PassMark DirectX 9 (261 vs 214) and a 20.2% win in DirectX 10 (155 vs 129). These tests stress older rendering paths where the newer architecture may not have optimized drivers or where the desktop card's higher clock speeds simply overpower the mobile chip. The DirectX 11 test is a perfect tie at 192, suggesting that this API level is where the architectures reach parity.

The Vulkan result heavily favors the RTX 3070 Ti, which scores 139,541 against 116,960, a 19.3% margin. This is notable because Vulkan is a modern, low-level API that should theoretically benefit from the Blackwell architecture's improvements. Instead, the RTX 3070 Ti's raw throughput advantages win out. The desktop card also leads in PassMark G3D by 14.7% (23,356 vs 20,355) and G2D by 17.7% (1,055 vs 896), confirming its superiority in general graphics workloads.

The RTX 5070 Mobile's wins are narrower. Its Geekbench OpenCL score of 122,238 beats 119,718 by 2.1%, a modest but real advantage in this specific compute benchmark. In PassMark DirectX 12, the mobile chip wins 93 to 91, a 2.2% margin that is within the margin of error for many benchmarks. These two wins suggest that the Blackwell architecture has genuine optimizations for compute-heavy API paths, but they are not enough to overcome the RTX 3070 Ti's broad advantages elsewhere.

FAQ

Q: Which GPU has the higher aggregate benchmark score?

A: The RTX 3070 Ti edges out the RTX 5070 Mobile with an average benchmark score of 29,945 versus 29,928, a difference of 0.1%. Both cards sit at the 75th percentile of all GPUs.

Q: How large is the RTX 3070 Ti's lead in compute performance?

A: In the PassMark GPU Compute test, the RTX 3070 Ti scores 11,601 against the RTX 5070 Mobile's 8,279, a 40.1% advantage. This is the largest performance gap between the two cards in any benchmark.

Q: Does the RTX 5070 Mobile win any benchmarks?

A: Yes, it wins two of nine head-to-head tests. It leads in Geekbench OpenCL with 122,238 versus 119,718 (2.1%) and in PassMark DirectX 12 with 93 versus 91 (2.2%).

Q: Are the two GPUs comparable in overall performance?

A: Yes, their average benchmark scores differ by only 0.1%, with the RTX 3070 Ti at 29,945 and the RTX 5070 Mobile at 29,928. They are listed as nearest rivals to each other in the data.

Q: What is the memory bandwidth difference?

A: The RTX 3070 Ti delivers 608.3 GB/s over a 256-bit bus with GDDR6X memory, while the RTX 5070 Mobile provides 384.0 GB/s over a 128-bit bus with GDDR7 memory.

Q: How do the power requirements compare?

A: The RTX 3070 Ti has a 290 W TDP and requires a dual-slot cooler with a 12-pin power connector and a 600 W suggested PSU. The RTX 5070 Mobile has a 50 W TDP, uses an integrated form factor, and requires no power connectors.

Specification Differences

The two cards differ across nearly every major specification. The RTX 3070 Ti uses the GA104 chip on Ampere architecture with Samsung's 8 nm process, while the RTX 5070 Mobile uses GB206 on Blackwell 2.0 with TSMC's 5 nm process. Transistor counts are 17,400 million versus 21,900 million, and die sizes are 392 mm² versus 181 mm², giving transistor densities of 44.4M and 121.0M per square millimeter respectively.

Clock speeds favor the desktop card substantially: the RTX 3070 Ti runs at 1,575 MHz base and 1,770 MHz boost, against the RTX 5070 Mobile's 907 MHz base and 1,425 MHz boost. Memory configurations differ in type and bus width, with GDDR6X on a 256-bit bus for the desktop card versus GDDR7 on a 128-bit bus for the mobile chip, resulting in bandwidth of 608.3 GB/s versus 384.0 GB/s. The RTX 3070 Ti has more execution units across the board: 6,144 shading units, 192 TMUs, and 96 ROPs versus 4,608 shading units, 144 TMUs, and 48 ROPs. RT core counts are 48 versus 36, and tensor cores are 192 versus 144.

Performance rates show the desktop card's advantage: pixel rate is 169.9 GPixel/s versus 68.40 GPixel/s, texture rate is 339.8 GTexel/s versus 205.2 GTexel/s, and FP32 compute is 21.75 TFLOPS versus 13.13 TFLOPS. Power and physical characteristics diverge completely: the RTX 3070 Ti is a dual-slot card with a 290 W TDP, a 12-pin connector, a 600 W suggested PSU, and dimensions of 267 mm by 112 mm. The RTX 5070 Mobile is an IGP with a 50 W TDP, no power connectors, no suggested PSU, and no listed dimensions. Bus interfaces differ as well, with PCIe 4.0 x16 for the desktop card and PCIe 5.0 x16 for the mobile chip. The RTX 3070 Ti is end-of-life with a release date of May 30, 2021 and a launch MSRP of 599 USD, while the RTX 5070 Mobile is active with a release date of April 14, 2025 and no launch MSRP listed.