RTX 5070 12GB Mobile Version Benchmarks Released: Identical to 8GB Version
Benchmarks of the first laptops equipped with the RTX 5070 12GB mobile graphics card, specifically the Mech Revolution Yaoshi 18 Pro, show performance is almost identical to the existing 8GB version. To alleviate the ongoing supply shortage of the RTX 5070 series, NVIDIA recently announced a 12GB memory version for mobile platforms, increasing memory capacity by 50% compared to the existing 8GB version, utilizing 3GB GDDR7 memory particles.
However, from the benchmark data, the additional 4GB of memory did not bring any performance improvement. TimeSpy scores were consistent, Fire Strike Extreme had a difference of about 2%, and Steel Nomad Light and Superposition 1080p Extreme were also nearly identical.
This result is not surprising, as the 12GB version and the 8GB version use the exact same GB206 chip, with 4608 CUDA cores, a 128-bit memory bus width, and a memory bandwidth of 384 GB/s. There are no changes to the core specifications.
In gaming scenarios, when the memory is not maxed out, increasing the memory capacity from 8GB to 12GB has almost no impact on the frame rate.
The real difference lies in AI inference scenarios. In the Qwen 3.5 9B Q40 test, both performed consistently, but in the Qwen 3.5 27B UD IQ2 test, which has higher memory requirements, the 12GB version achieved a significant lead thanks to its 50% larger memory capacity, while the 8GB version was severely limited due to insufficient memory.
NVIDIA has made it clear that the 12GB version will not replace the 8GB version, and both products will coexist in the market.