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5770 to 7770 GHz Edition

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#1 karlm

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Posted 13 May 2016 - 07:46 PM

Hi All

Just a quick one -

My main system is still (don't laugh) running an i5-750, at stock speed with 8GB of RAM.

I know with a little work I can o/c that baby quite well, just really never gotten around to it.

 

I am currently running a 1GB XFX 5770 on it, but have acquired a Sapphire 1GB 7770 GHz Edition card for nix.

I was toying with the idea of doing a straight swap to hopefully give me a little more fps in some older games (mostly titles from 2013 like Dead Space, Dirt 3, etc) but somewhere I read that the memory bus on the 7770 is not as wide as the 5770, and so there is little difference between the two cards.

From memory, IIRC, the XFX is running at 850MHz.

 

Is it worth doing the swap, or am I just flogging a dead horse with a CPU/MOBO from 2009?

 

(Holy crap, I just realised I've had this box for almost 7 years!)

 

Cheers

 

karlm.



#2 Rybags

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Posted 13 May 2016 - 08:05 PM

http://gpuboss.com/g...-Radeon-HD-5770

 

Not much difference there.  Tom's Hardware doesn't seem to have them listed together and quickly looking at charts around that era they used different tests and setup for the 2 cards.

http://www.tomshardw...cs-cards,1.html

 

I seem to remember the HD5770 was somewhat revered in that it gave performance around that of high-end cards only a generation or two older.

Bus bandwidth - yep, it's usually the case a skinner pipe will mean lower performance but generally when you're talking a couple of generations difference the core and memory speed will be sped up somewhat.

But those are just 3 variables of many, you've also got stuff like how many processing units the GPU has.  Bottom line though is you need to do synthetic bench comparos and real life gaming with both.

 

I'd give it a shot, given you have the card there's not much to lose.  Even if it's on-par for performance the chance is it'll use less power and be cooler.

 

A good idea is to do benchmark comparisons before and after.  A couple of the 3DMarks and Furmark should be enough.



#3 karlm

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Posted 13 May 2016 - 11:19 PM

Cheers Rybags.

Pretty much everything I had thought.  Just couldn't be arsed running Futuremark (getting old and impatient these days) and tbh, this rig is still playing pretty much everything a-ok.

 

Guess I'll have to exert a little elbow grease and do that swap ...



#4 Dasa

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Posted 14 May 2016 - 09:02 AM

the 7770 is ~20% faster

the memory bandwidth does have an effect but the core is faster

as you can see here the higher memory performance of the 5770 helps it reduce the gap at higher res vs the 7770 at lower res

the difference in memory bandwidth is purely clock speed 5770 1200mhz vs 7770 1150mhz there is oc models of the 7770 though that run 1250mhz which any card is probably capable of using overdrive

https://www.techpowe...HD_7770/26.html

perfrel_1024.gifperfrel_1920.gif

 

your cpu once overclocked is still perfectly capable of handling a modern gpu

a 4ghz i5 750 wouldnt be that far behind a current stock cpu in performance


Edited by Dasa, 14 May 2016 - 09:08 AM.

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#5 karlm

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Posted 14 May 2016 - 10:33 AM

Thanks Dasa.

I had been toying with the idea of dropping an R9 card in (380X or 390) as I can carry that over to my new rig once I get the $$ to do a new build.

Did some synthetic tests this morning, Furmark and Futuremark.

I just used the last Catalyst drivers available for the 5770 so I was comparing apples to apples, I didn't mess with the system upgrading to the new Crimson drivers for the 7770, it would be interesting to see if that improves performance, but for now I'll leave it be.

Furmark showed the 5770 as a much better performer in that test, albeit running a little warmer, but the Futuremark test was the complete opposite.

Fire Strike was not playable by any means, with 16fps being the best of either card.

 

5770 - 850MHz Core, Memory 1125MHz
1,740 IN Fire Strike (V1.1)
Graphics score         1,810
Graphics test 1        8.78 FPS
Graphics test 2        7.14 FPS
Physics score          5,129
Physics test           16.28 FPS
Combined score         763
Combined test          3.55 FPS


7770 - 1000MHz Core, Memory 1125MHz
2,642 IN Fire Strike (V1.1)
Graphics score         3,025
Graphics test 1        14.24 FPS
Graphics test 2        12.22 FPS
Physics score          4,016
Physics test           12.75 FPS
Combined score         1,073
Combined test          4.99 FPS

 

It's interesting to see the architecture of the 5770 handles the physics test much better than the 7770.

Guess I'll have to put some time aside and do some more benching with updated drivers on the 7770 and also with the CPU O/C'ed.

 

Can't upload screenshots for some reason, but Furmark had the 5770 @ 1013 points, 16fps; the 7770 @ 892 points, 14fps.


Edited by karlm, 14 May 2016 - 10:56 AM.


#6 Dasa

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Posted 14 May 2016 - 11:03 AM

i believe newer cards may limit themselves in furmark to keep power use down and prevent the cards overheating as its a very demanding test

 

the physics test is mostly a cpu benchmark but it is interesting that newer amd gpu seem to handle some cpu heavy dx11 tests less efficiently than older models or nvidia gpu

however with mantle\volcan\dx12 the newer amd gpu are more efficient when it comes to cpu performance

 

overclocking your cpu should improve the physics and combined score a lot

feel free to oc the gpu to


Edited by Dasa, 14 May 2016 - 11:05 AM.

Silverstone TJ08-EW 6700k@4.7 1.375v - Z170-GENE - 2x8g 3866 16-16-16 - 1070@ 2100\9600MHz  -Samsung 830 64G, Sandisk Ultra II 960G, WD Green 3tb - Seasonic XP1050 - Dell U2713 - Pioneer Todoroki 5.1 Apogee Drive II - EK VGA-HF Supreme  - Phobia 200mm Rad - Silverstone AP181 Project Darkling
3770k vs 6700k RAM Scaling, HT vs RAM, Arma III CPU vs RAM, Thief CPU vs RAM
Parts Guide


#7 Rybags

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Posted 14 May 2016 - 01:29 PM

Probably an idea to disable Catalyst AI, it provides optimisations which will skew results.

 

Also, back in the day of those 2 cards, graphics performance could vary widely due to driver differences, remembering that ATI were nowhere near as consistent as nVidia with performance.



#8 Master_Scythe

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Posted 16 May 2016 - 11:12 AM

Cheers Rybags.

Pretty much everything I had thought.  Just couldn't be arsed running Futuremark (getting old and impatient these days) and tbh, this rig is still playing pretty much everything a-ok.

 

Guess I'll have to exert a little elbow grease and do that swap ...

 

 

Also, go into the Catalyst Control Centre, and max out the 3 Overdrive sliders.

 

Allow +20% voltage.

Allow Max GPU MHZ overclock.

Allow Max Memory Overclock.

 

The new CCC doesn't apply the overclock unless the current speeds approach 90% load.

And I've seen very, very, very few cards that can't handle the maximum CCC overclocks. They're very mild.

 

I've occasionally limited voltage to +10%, and only upped the memory by 50% of the slider, but the GPU speed always maxes out in my experience, regardless of card. They (those sliders) are 'tailored' by model as to how much difference they make.


Edited by Master_Scythe, 16 May 2016 - 11:13 AM.

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