OTOY Forums

Choose the one that will be more efficient:

a) 1 GTX1070 and 2 GTX1070ti

b) 1 GTX1070 and GTX1080ti

I currently have a GTX1070 in my workstation. Both options equal $1000.

F!

Win 10 | GTX1070 | i9 7900 | 64GB

If use all GPUs : 8GB VRAM
if need speed render : 2x1070Ti
but more power consumption
For me, I go with 2x1070ti as V4 will manage OoC for texture and geometry.

So are you saying 2 1070ti in addition to the current 1070 I own?
Or the two 1070ti only?

I’m looking for speed. Thanks.

I advice option c) 1x GTX 1070 (your existing one) + 1x watercooled GTX 1080 Ti: https://eu.evga.com/products/product.as ... P4-6598-KR

- 3x GPU inside one case without 1 or 2 being watercooled hurts performance or gets very loud, speaking from experience.
- 8 GB VRAM limit on GTX 1070 is stupid, Windows already steals X GB away from the start. You can't rely on out-of-core features yes, which are heavily in dev, and come at a performance decrease anyways. Always go for max VRAM available.
- At a later time, go for another GTX 1080 Ti (can be aircooled but watch the GPU layout in the case)
- At a later time than that, swap GTX 1070 for the GTX 2080 or whatever is coming. You'll then have generous VRAM on all three cards.
- I personally think the GTX 1070 and GTX 1070 Ti are crippled for rendering due to VRAM.

This method has an upgrade path ahead, the options with GTX 1070 don't. Having to ditch 3x GTX 1070 later on cause of limitations entirely is more costly than getting GTX 1080 Ti. Don't cheap out on GTX 1070s.