GTX 970 Vram vs GTX 980 Vram test i 4K
Grafikkort d. 31. januar. 2015, skrevet af Gripen90
Vist: 2904 gange.
Gripen90
#0
Hele torsdag aften og det meste af fredag var jeg i gang med at teste hele denne kontrovers med de 3.5GB + 0.5GB Vram. Jeg var nemlig selv ved at sælge 5x 970 til fordel for 3x 980. 2x 970 skulle udskiftes med 1x 980 og 3x 970 udskiftes med 2x 980. Salget af 5 970 ville på ingen måde kunne dække nyomkostningen på 12'600kr for 3x 980.
Derfor slog en kammerat og jeg pjalterne sammen for at se hvor "hyped" ram problematikken reelt var og om det jeg oplevede fra start af også var tilfældet på 980.
Følgende er på engelsk da jeg postede på forums.overclockers.co.uk:
"I just wanna share some experience regarding the whole 970 Vram issue vs "real 4GB" on 980s
Having one PC with 970 SLi and another 970 3 way SLi, I was thinking of going 1x GTX 980 in one PC and 2x GTX 980 in the other PC. I knew very well that selling 5 GTX 970 would not cover the costs of 3 new GTX 980's...but I was kinda accepting it albeit unwillingly.
Luckily my buddy Jess, came to the rescue ! We talked about it and he said, "hey why don't I come by with my 2x GTX 980 and my 4K screen and we can check if it really is an issue".
So last evening we ended up swapping testing 1x GTX 980 vs 2x GTX 970 and 2x GTX 980's vs 3x GTX 970 and 2x GTX 980 vs 2x GTX 970 all in 4K.
Aaaaand halleluja I was happy with did that.... it saved me hundreds of quids.
Fact was that we played every new AAA title in 4K at max details and minimum 8xAA in all titles. We were excited to see if the Vram "issue" on the 970 would cripple it.
We did all the first testing with 1-2-3 GTX 970. With 1x 970 card FPS were low and at these quality settings games weren't really playable.
2x GTX 970 improved things a lot - we loaded the games with 8xAA and we experienced stutter every now and then and the VRam usage was 3.5GB+ and texture popping was random. We backed down to 4xAA and things lightened up. Still not stutter free and occasional hickups but we didn't see texture popping. Then we backed down to 2xAA (still looking sweet in 4K) and now things rang smooth as silk and we didn't experience stuttering at all.
Now to 3x GTX 970 - fired up the same games and Dying Light the "problem child" for the 970 Vram problem we tried first. Set it to 8xAA and we still had massive stutter all over and texture popping like with 2x 970. We downed AA to 4x and now things got weird. Absolutely smooth gameplay eventhough the Vram was hitting 3.8GB !!!. Maybe that extra GPU really made a difference now backing up the Vram ! We didn't see that coming.
The same story we repeated in the other games BF4, BioShock Infinite, COD Ghost/Advanced Warfare etc. Gaming in 4K with 3x 970 was a breeze with max 4xAA.
All in all we were sure we had seen the "3.5GB+ 0.5GB" problem in the games.
Now we moved to the GTX 980. 4K same setting Vram usage 3.9~4.1GB with 8xAA. But heavy stutter stutter and low FPS. One card just can handle it. Backed down all the way to 2xAA before with got FPS though would touch the likes of 30FPS and Vram usage between 3.4~3.5GBVram
Moving to 2x GTX 980 we expected the 980's to show their REAL 4GB Vram available. Fired up Dying Light set to max and 8xAA. First minute was smooth and we were so confident that this was how real 4GB vram would run the game... but them BAAAAM... suddenly the memory usage showing 3.8 went to 4.1GB and we were back to texture popping and choppy gameplay just like the 2/3x GTX 970's.
We could not believe it so we restarted the PC and game - with that that 3 times in a row, but every time the choppiness and texturepopping returned. Even 4Gigs wasn't going to cut it to run 4K at 8xAA. We backed down to 4xAA and here we started get get smooth gameplay again, only once in a while when a lot on the screen happened the FPS would back down in the low 30FPS - not surprisingly the 3x 970 delivered much better gameplay experience and FPS smoothness at these same settings.
After that we continued to tests in all the other games. We were surprised to see that all the games behaved in the same manner 8xAA at 4K was too much for even two 2x GTX 980's to handle. Vram usage was oversaturated causing stuttering etc. Backing down to 4xAA things got a lot better and games played smoothly albeit with a lower average FPS than 3x 970's.
So all in all. We played through all the games and I must admit that the 3.5GB+ 0.5GB vram issue was only "evident" when the 980 REAL 4GB card had the same problems !.
I'm really not that sure that the 970 is a crippled card at all, because when the 970 had problems so had the 980's.
Right now I am actually very happy I didn't sell my 5x 970's but decided to keep them. I'm thankfull for the fact that I for myself could test things out before throwing hundres of £ out of the window for nothing - so a hughe thank you to my buddy Jess H I've seen it with my own eyes that "upgrading" from 970 "3.5GB+0.5GB" to 980 4GB is useless.
When 8GB versions of 970's get here I'll purchase those also eventhoug they may be "7GB+ 1GB" or so...if the 256bit bus on both won't cause problems that is.
I hope you can use my answer to something."
Det vi har siddet og lavet er reelt det som PCPer også har i deres artikel her:
http://www.pcper.com/reviews/G...
Resultatet er at jeg kun har solgt eet 970 og beholdt de 5 andre. Jeg skifter ikke ud nu, hvor jeg har set at selv 980 4GB ikke kan præstere det jeg "kræver" i 4K. Jeg afventer "full maxwell". 😎
Tråden blev redigeret 3 gange, sidst af Gripen90 d. 31-01-2015 16:04:37.
Derfor slog en kammerat og jeg pjalterne sammen for at se hvor "hyped" ram problematikken reelt var og om det jeg oplevede fra start af også var tilfældet på 980.
Følgende er på engelsk da jeg postede på forums.overclockers.co.uk:
"I just wanna share some experience regarding the whole 970 Vram issue vs "real 4GB" on 980s
Having one PC with 970 SLi and another 970 3 way SLi, I was thinking of going 1x GTX 980 in one PC and 2x GTX 980 in the other PC. I knew very well that selling 5 GTX 970 would not cover the costs of 3 new GTX 980's...but I was kinda accepting it albeit unwillingly.
Luckily my buddy Jess, came to the rescue ! We talked about it and he said, "hey why don't I come by with my 2x GTX 980 and my 4K screen and we can check if it really is an issue".
So last evening we ended up swapping testing 1x GTX 980 vs 2x GTX 970 and 2x GTX 980's vs 3x GTX 970 and 2x GTX 980 vs 2x GTX 970 all in 4K.
Aaaaand halleluja I was happy with did that.... it saved me hundreds of quids.
Fact was that we played every new AAA title in 4K at max details and minimum 8xAA in all titles. We were excited to see if the Vram "issue" on the 970 would cripple it.
We did all the first testing with 1-2-3 GTX 970. With 1x 970 card FPS were low and at these quality settings games weren't really playable.
2x GTX 970 improved things a lot - we loaded the games with 8xAA and we experienced stutter every now and then and the VRam usage was 3.5GB+ and texture popping was random. We backed down to 4xAA and things lightened up. Still not stutter free and occasional hickups but we didn't see texture popping. Then we backed down to 2xAA (still looking sweet in 4K) and now things rang smooth as silk and we didn't experience stuttering at all.
Now to 3x GTX 970 - fired up the same games and Dying Light the "problem child" for the 970 Vram problem we tried first. Set it to 8xAA and we still had massive stutter all over and texture popping like with 2x 970. We downed AA to 4x and now things got weird. Absolutely smooth gameplay eventhough the Vram was hitting 3.8GB !!!. Maybe that extra GPU really made a difference now backing up the Vram ! We didn't see that coming.
The same story we repeated in the other games BF4, BioShock Infinite, COD Ghost/Advanced Warfare etc. Gaming in 4K with 3x 970 was a breeze with max 4xAA.
All in all we were sure we had seen the "3.5GB+ 0.5GB" problem in the games.
Now we moved to the GTX 980. 4K same setting Vram usage 3.9~4.1GB with 8xAA. But heavy stutter stutter and low FPS. One card just can handle it. Backed down all the way to 2xAA before with got FPS though would touch the likes of 30FPS and Vram usage between 3.4~3.5GBVram
Moving to 2x GTX 980 we expected the 980's to show their REAL 4GB Vram available. Fired up Dying Light set to max and 8xAA. First minute was smooth and we were so confident that this was how real 4GB vram would run the game... but them BAAAAM... suddenly the memory usage showing 3.8 went to 4.1GB and we were back to texture popping and choppy gameplay just like the 2/3x GTX 970's.
We could not believe it so we restarted the PC and game - with that that 3 times in a row, but every time the choppiness and texturepopping returned. Even 4Gigs wasn't going to cut it to run 4K at 8xAA. We backed down to 4xAA and here we started get get smooth gameplay again, only once in a while when a lot on the screen happened the FPS would back down in the low 30FPS - not surprisingly the 3x 970 delivered much better gameplay experience and FPS smoothness at these same settings.
After that we continued to tests in all the other games. We were surprised to see that all the games behaved in the same manner 8xAA at 4K was too much for even two 2x GTX 980's to handle. Vram usage was oversaturated causing stuttering etc. Backing down to 4xAA things got a lot better and games played smoothly albeit with a lower average FPS than 3x 970's.
So all in all. We played through all the games and I must admit that the 3.5GB+ 0.5GB vram issue was only "evident" when the 980 REAL 4GB card had the same problems !.
I'm really not that sure that the 970 is a crippled card at all, because when the 970 had problems so had the 980's.
Right now I am actually very happy I didn't sell my 5x 970's but decided to keep them. I'm thankfull for the fact that I for myself could test things out before throwing hundres of £ out of the window for nothing - so a hughe thank you to my buddy Jess H I've seen it with my own eyes that "upgrading" from 970 "3.5GB+0.5GB" to 980 4GB is useless.
When 8GB versions of 970's get here I'll purchase those also eventhoug they may be "7GB+ 1GB" or so...if the 256bit bus on both won't cause problems that is.
I hope you can use my answer to something."
Det vi har siddet og lavet er reelt det som PCPer også har i deres artikel her:
http://www.pcper.com/reviews/G...
Resultatet er at jeg kun har solgt eet 970 og beholdt de 5 andre. Jeg skifter ikke ud nu, hvor jeg har set at selv 980 4GB ikke kan præstere det jeg "kræver" i 4K. Jeg afventer "full maxwell". 😎
Tråden blev redigeret 3 gange, sidst af Gripen90 d. 31-01-2015 16:04:37.
#1
Fedt, tak for indlægget og det arbejde der ligger bag 🙂
#2
Sådan har jeg også tænkt det har været, mere eller mindre. Når der er tale om 2 firma'er, med hver deres KÆMPE fanbase, så skal den mindste fejl nok blæses op til en orkan.
Desuden arbejder de på noget driver til at optimere det ydeligere.
Men helt klart, det sku ikke i orden at lyve nvidia 😲
Desuden arbejder de på noget driver til at optimere det ydeligere.
Men helt klart, det sku ikke i orden at lyve nvidia 😲
#3
Spændende.
Det virker lidt underligt at du ikke benytter flere ram på grafikkortene.
4,1Gb er jo ikke meget når at du har 8-12Gb til rådighed, og selv med 3 gpuer kommer du ikke til at køre 8xaa flydende.
Men er der så stor en forskel på 2xaa og 8xaa på en 4K skærm?
Hvordan skal grafikkortene kunne følge med, når at 8K skærmen allerede er udviklet og under test. :no:
Det virker lidt underligt at du ikke benytter flere ram på grafikkortene.
4,1Gb er jo ikke meget når at du har 8-12Gb til rådighed, og selv med 3 gpuer kommer du ikke til at køre 8xaa flydende.
Men er der så stor en forskel på 2xaa og 8xaa på en 4K skærm?
Hvordan skal grafikkortene kunne følge med, når at 8K skærmen allerede er udviklet og under test. :no:
#4
#2: Præcis. Der er intet i vejen med kortene men det er nvidias mangel på ordentlig oplysning der er kritisabel. Ja de skulle have informeret om de 56ROPs og 1.7mb l2 cache fra starten.
Det er dog vigtigt at huske GTX 970 ikke er blevet ringere siden det blev lanceret.
Jeg er dog super glad for, at jeg tog fejl i mine oprindelige antagelser og fik testet med GTX980 'gratis. Så slap jeg for at bruge en masse penge på noget, der alligevel kunne løses i forhold til mine krav.
#3: Nej der er kun 4GB til rådighed. Ram lægges ikke sammen i SLi eller Crossfire. Det er parallelle texturer der lagres i rammene.
Svaret blev redigeret 2 gange, sidst af Gripen90 d. 31-01-2015 18:11:00.
Det er dog vigtigt at huske GTX 970 ikke er blevet ringere siden det blev lanceret.
Jeg er dog super glad for, at jeg tog fejl i mine oprindelige antagelser og fik testet med GTX980 'gratis. Så slap jeg for at bruge en masse penge på noget, der alligevel kunne løses i forhold til mine krav.
#3: Nej der er kun 4GB til rådighed. Ram lægges ikke sammen i SLi eller Crossfire. Det er parallelle texturer der lagres i rammene.
Svaret blev redigeret 2 gange, sidst af Gripen90 d. 31-01-2015 18:11:00.
#5
#4
Så blev jeg lidt klogere. 🙂
Så blev jeg lidt klogere. 🙂
#7
#0 hvis du vil skrible det ned på dansk, så vil jeg gerne poste en nyhed med dine forsøg/test
#8
#4 - Et spørgsmål:
Hvordan kan kortene anvende 4,1 GB hvis de kun har 4,0 GB til rådighed ?
---------CB
Hvordan kan kortene anvende 4,1 GB hvis de kun har 4,0 GB til rådighed ?
---------CB
#9
#8 Det har 4096Mb og hvis man regner med at 1000Mb er 1Gb istedet for 1024Mb som jo egentlig er 1 Gb så passer det med 4,1Gb :)
#10
Gripen, er der synlig forskel på 2xaa og 8xaa på en 4k skærm? (Forudsat det ikke er en 88" selvfølgelig) 🙂
#11
Gripen, er der synlig forskel på 2xaa og 8xaa på en 4k skærm? (Forudsat det ikke er en 88" selvfølgelig) 🙂
Der er mere eller mindre ingen forskel på 2x AA og 8x AA med 1440P.
Så tvivler meget stærkt på der er noget forskel og se på 2x og 8x AA med 4K.
#12
#0 hvis du vil skrible det ned på dansk, så vil jeg gerne poste en nyhed med dine forsøg/test
Det gør jeg gerne 🙂 håber på at få den "oversat" i løbet af i morgen.
#10: Meget lidt. Kun hvis man vil lægge mærke til det ser man det, men så fokuserer man heller ikke så meget på spillet. Effekten er mere synlig for 2xAA vs 8xAA i 1440p end 4K det er dog helt sikkert.
#13
Er der også noget galt med gtx980 kortet ?
#14
Er der også noget galt med gtx980 kortet ?
Nej intet der. Blot for at påpege at når 970 kortet kommer i problemer så gør 980 det også. 🙂
#7: har PM'ed oversættelsen til dig 🙂
#17
Godt arbejde ! nu kan vi snakke om at have noget at have det i 🙂
#18
Blot enig med de andre. Solidt arbejde - og tak ❤
#19
Et stort tak herfra for at du deler det her med os andre.
Jeg var sq lige ved at hoppe på bandwagon og være sur på mit 970, men jo mere jeg bruger det, jo mindre kan jeg se mig gal på det.
Kæft det kort spiller :D
#20
(Sry for OT; photoshoppede lige et FB-cover til lejligheden)
