Fury X Memory Overclocked by 20%

[Tim Drake]

It's hard to say if 20% would make a difference? Well over clocking gddr5 makes no difference so do you honestly think that overclocking hbm which is overkill memory would make a difference? It will probably be a couple years before hbm if something that effects gaming in a meaningful way.

Made a huge difference on my 970

[osbios]

... But if we compare with the R9 390X, then the Fury X should be more bandwidth-limited. The 390X has 2816 shaders and 384 GB/s memory bandwidth; that's 0.136 GB/s per shader. The Fury X has 4096 shaders and 512 GB/s memory bandwidth; that's only 0.125 GB/s per shader.

 

The 390x is still a GCN 1.1 chip. The fiji is GCN 1.2 and therefor comes with color/delta compression and saves a lot of bandwidth when handling framebuffers.

 

[MEC-777]

I didn't say per clock, I said per watt. A 20% OC on the core will give better performance results than a 20% OC on the memory, but will also increase power by a lot more.

 

I tested this with lowering the power limit with the core overclocked on stock voltage, every time I increased the memory clock, I got better results, the core didn't boost quite as high, but still results were better.

 

I didn't say you said "per clock", I said that. I was agreeing to where you said if you reach the limit on the core, to then OC the memory.

[LukaP]

With my 760's I could only manage a 100Mhz offset which was pretty awful, despite that it improved performance by an average of 2%. More is more, memory OC's do make a difference period.

yes but when you have to dial back your core by 50MHz for those 100MHz on VRAM, it hurts performance. overclock your core, then if the IMC will take it still, give that a run for its money. by the time you do that, you wont even notice the 2% difference anyway though

[That Norwegian Guy]

Good to see HBM 0.9a (I made the version number up) doesn't literally just supernova when overclocked. Other than that, I see no practical need for HBM OC at the moment (maybe for getting rid of texture pop-in in Rage LOL gg id Software) 

 

What I want need to see is voltage control on the GPU itself, if AMD doesn't sort this shit out B E F O R E reviewers get at the Fury non-X they will manage to dealbreak a sale to me for the hundreth time WHEN I ACTUALLY WANTED TO BUY AMD! (I had Fury X in the bag before reviews went up, and cancelled it last moment because no voltage control)

[bcredeur97]

Can't wait for Fury X custom vBIOS'es lol, especially if voltage can be tweaked.

 

its gonna be maaaaad

[deviant88]

Yeah you are right. You are so right smart guy. I forgot about that extra 1fps you will get from an extra 400mhz on memory.

Actually "smart guy" my gtx 670 gained 3-5 fps  around 50-60 fps which is a great up to 10% bonus fps, when i overcloked the memory by 500mhz, so yeah shut up.

And this gain was consistent across most games, what you compare gpu memory to CPU ram? where the frequency makes no difference, or you actually think you need to use all the bandwidth before OC is required? all wrong, you get extra fps from GDDR5 OC, try it then talk.