Will overclocking VRAM help RTX 4070 Ti to overcome it's memory limitations? Stock vs OC comparison.

00:00 – Introduction
00:03 – Testing Methodology
00:24 – A Plague Tale: Requiem
02:28 – Control
04:24 – God of War
08:26 – Hellblade: Senua’s Sacrifice – Enhanced Edition
09:56 – Marvel’s Guardians of the Galaxy
10:57 – Shadow of the Tomb Raider
11:37 – The Last Of Us Part I
13:35 – Uncharted: The Lost Legacy
15:48 – Conclusion

Hello everyone.

RTX 4070 Ti was heavily criticized for it’s relatively narrow memory bus, which is 192 bit (504 GB/s).

RTX 3070 Ti has 256 bit memory bus. And it’s memory bandwidth is 608 GB/s, which is 21% higher than 4070 Ti’s.

I was interested to see will overclocking RTX 4070 Ti memory result in better GPU performance.

How to calculate the memory bandwidth?

GPU memory clock = 1/8 of effective clock frequency. For 4070 Ti it is 1/8 of 21000, which is 2625 Mhz.

Stock RTX 4070 Ti memory bandwidth: (2625MHz*192bit)/1000 = 504 GB/s.

I was able to overclock the effective clock frequency up to 24500 Mhz (+3500 Mhz), which resulted in 3062,5 Mhz memory clock.

Overclocked RTX 4070 Ti memory bandwidth (+17%): (3062,5MHz*192bit)/1000 = 588 GB/s.