The New Official THIEF-Incorporating Bench mark Thread

Kaapstad · 2 Aug 2014 at 15:44

Gregster said:
Nice scores Kaap. Why DX11 only?

I came within an ace of blowing up my 4930k trying to run Mantle at 4K and that was only @4.0ghz.

The VRAM memory problem with Mantle causes massive instability and thrashes the living daylights out of CPUs, fortunately it is not so bad on BF4.

I did do a couple of Mantle runs in between loads of crashes and will post them later. The two card run was worse than DX11 and the three card run was a bit better. I decided to give up when my CPU and PC powered off with the 4930k @4.0ghz and using 1.4v, even this was not enough to keep things stable. :eek:

Silent_Scone · 2 Aug 2014 at 15:50

1.4v at stock? Was that in auto? Lol.

Kaapstad · 2 Aug 2014 at 15:55

MjFrosty said:
1.4v at stock? Was that in auto? Lol.

I had to manually set the volts high to even get the bench to run Mantle for a minute. When you start the bench in Mantle those fps drops to 2 or 3 really kill the CPU, prime95 has got nothing on this.

Silent_Scone · 2 Aug 2014 at 15:59

Lol christ.

Gregster · 2 Aug 2014 at 16:13

Kaapstad said:
I came within an ace of blowing up my 4930k trying to run Mantle at 4K and that was only @4.0ghz.

The VRAM memory problem with Mantle causes massive instability and thrashes the living daylights out of CPUs, fortunately it is not so bad on BF4.

I did do a couple of Mantle runs in between loads of crashes and will post them later. The two card run was worse than DX11 and the three card run was a bit better. I decided to give up when my CPU and PC powered off with the 4930k @4.0ghz and using 1.4v, even this was not enough to keep things stable.

Wow!!

humbug · 2 Aug 2014 at 16:20

Kaapstad said:
I came within an ace of blowing up my 4930k trying to run Mantle at 4K and that was only @4.0ghz.

The VRAM memory problem with Mantle causes massive instability and thrashes the living daylights out of CPUs, fortunately it is not so bad on BF4.

I did do a couple of Mantle runs in between loads of crashes and will post them later. The two card run was worse than DX11 and the three card run was a bit better. I decided to give up when my CPU and PC powered off with the 4930k @4.0ghz and using 1.4v, even this was not enough to keep things stable.

Probably because with Mantle its pushing all the CPU threads instead of just a few like in DX.

Kaapstad · 2 Aug 2014 at 16:21

MjFrosty said:
Lol christ.

Gregster said:
Wow!!

The thing is Mantle does what AMD intended it to do, help improve performance at normal resolutions and on the minimum fps too.

It is just not very good with 4k (unless some lucky person has got some 8gb cards) but then I don't think this is where AMD intended people to use it.

Kaapstad · 2 Aug 2014 at 16:22

humbug said:
Probably because with Mantle its pushing all the CPU threads instead of just a few like in DX.

Probably not or I would have the problem even worse @1080p.

humbug · 2 Aug 2014 at 16:25

Kaapstad said:
Probably not or I would have the problem even worse @1080p.

Your comment on the CPU not being stable threw me.

Is it the CPU thats not stable or are you out of Vram?

Kaapstad · 2 Aug 2014 at 16:39

humbug said:
Your comment on the CPU not being stable threw me.

Is it the CPU thats not stable or are you out of Vram?

It is the running out of VRAM that causes the instability with the CPU.

I have just run the cards @1080p using Mantle with the CPU @4.8 and there was no problem at all with stability.

Captain · 2 Aug 2014 at 17:17

I think i need to do some overclocking

4K res - 7990 @ 1000/1500 4770K @ 3.5

humbug · 2 Aug 2014 at 17:23

Clov!s said:
I think i need to do some overclocking

4K res - 7990 @ 1000/1500 4770K @ 3.5

lol... do you want me to add that? i don't mind if you do....

Captain · 2 Aug 2014 at 17:31

tbh i don't think that score is worthy of being on the board

I'll be back with a higher score

Kaapstad · 2 Aug 2014 at 17:50

Just run these to show memory usage @4K on 4 cards with DX11 and Mantle.

DX11

Total used 16gb, pretty close but ok.

Mantle

Total used 18gb, not so good and I think the problem is the dynamic memory being swapped out.

humbug · 2 Aug 2014 at 17:52

Clov!s said:
tbh i don't think that score is worthy of being on the board

I'll be back with a higher score

ok

Gregster · 2 Aug 2014 at 17:53

Clov!s said:
tbh i don't think that score is worthy of being on the board

I'll be back with a higher score

It is probably a VRAM limit on your 7990 Clov!s. Kaapstad said he was running out at 4K with his 290Xs

shankly1985 · 2 Aug 2014 at 17:57

Kaapstad said:
Just run these to show memory usage @4K on 4 cards with DX11 and Mantle.

DX11

Total used 16gb, pretty close but ok.

Mantle

Total used 18gb, not so good and I think the problem is the dynamic memory being swapped out.

Am not seeing 18gb? 14gb

Kaapstad · 2 Aug 2014 at 17:58

shankly1985 said:
Am not seeing 18gb? 14gb

14gb plus the 4gb of dynamic below.

Captain · 2 Aug 2014 at 18:02

Gregster said:
It is probably a VRAM limit on your 7990 Clov!s. Kaapstad said he was running out at 4K with his 290Xs

Yeah i think that's the issue

Tempted to pick up two Titans again tonight

shankly1985 · 2 Aug 2014 at 18:04

Kaapstad said:
14gb plus the 4gb of dynamic below.

OK missed that. What is dynamic anyway?

Competitor rules

**The New Official THIEF-Incorporating Bench mark Thread**

The New Official THIEF-Incorporating Bench mark Thread