MSI GTX 1070 low performance (particularly DX9 benchmark)

phlupple

Commendable
Dec 11, 2016
2
0
1,510
Hello guys,

First of all I hope I'm posting this in the appropriate forum. Apologies if not.

It's my first post here and I'm not especially tech-savvy so please bear with me. I've had this MSI GeForce GTX 1070 ARMOR 8G OC for about two weeks (still stock) and I'm concerned about my benchmarking results. I've used the free trial of the Passmark PerformanceTest software and Unigine Heaven to benchmark my system but I'm happy to run whatever free benchmarking software you guys recommend instead.

The thing that's struck me as particularly worrying is my DX9 results:

PerformanceTest screenshot (comparing to very similar systems (same processor & overclock, same GPU, same operating system))

Unigine Heaven DX9 screenshot

Unigine Heaven DX11 screenshot

GPU-Z screenshot

GPU-Z max values following a Heaven benchmark

My specs:
Operating System: Windows 7 Home Premium Edition Service Pack 1 build 7601 (64-bit)
CPU Type: Intel Core i5-2500K @ 3.30GHz (currently OC'd to 4.30GHz)
Number of CPUs: 1
Cores per CPU: 4
Hyperthreading: Disabled
Motherboard: P67A-UD4-B3
Memory: 16GB Kingston DDR3 SDRAM
Videocard: NVIDIA GeForce GTX 1070

  • ■ I've checked and I am running the latest version of DirectX.
    ■ I've checked and I am running the latest 1070 drivers.
    ■ I used DDU to wipe all drivers and rolled back to earlier 1070 drivers to no avail.
    ■ I've uninstalled GeForce Experience and all other GeForce software aside from the drivers.
    ■ I've tried running the tests on a dual-display setup with a 42" TV @ 60Hz and a 24" monitor @ 59Hz, and I've tried both as single displays and there's no change.
    ■ I have quite an old 700w PSU and had to use a two-part 6+2 PCI-E cable to plug into the 8-pin socket on the 1070 (my previous card was a 6-pin).
    ■ Using GPU-Z, my core and memory clocks seem to be as advertised.
Also:
I think I could theoretically return/exchange/refund the card with minimal hassle if I act relatively soon.

Sorry if I have failed to include some vital detail. I really hope someone can offer some advice to help me get to the bottom of this!

Thanks a lot,
Phil
 

phlupple

Commendable
Dec 11, 2016
2
0
1,510


I think I read somewhere that the difference between PCI 2.0 and 3.0 (and between x8 and x16) is actually minimal. Is that wrong?

I understand that my CPU is bottlenecking the 1070, but it doesn't explain why people with the same CPU as me are getting far superior DX9 benchmark results (see my first screenshot).