card from RMA is terrible

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TypeRazor

Gawd
Joined
Apr 17, 2009
Messages
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I recently RMA'd a visiontek 4870 512MB and received a 5770 1GB back.
On the synthetic benchmarks they are very close performance wise but for real world usage I get between 33-50% of the performance I previously had.
I have tried 3 different AMD drivers and they were all pretty much the same.
My resolution is 1920x1200 if that makes a difference.

I have email them but probably wont hear back until tomorrow night, any idea if they video card companies make exceptions for stuff like this? Otherwise ill be ordering a new card tonight
 
That is NOT an upgrade at all. They should be sending you a 5850 at least or higher.
 
http://www.anandtech.com/bench/Product/304?vs=296

when you look at those numbers its pretty much a side grade(yeah its old but its the easiest way to show a comparison between 2 cards that old), yeah you might be down a few FPS in a couple games but it should pretty much be the same unless you had your 4870 overclocked and you are running the 5770 stock. hell even at 1920x1200 you should be seeing a performance difference since you shouldn't be bottle necked by the vram, so you might want to look into something else causing a problem.. e.g check gpu loads, see if the cards actually coming out of 2D clocks.. etc etc.. either way i'd just stick with the card til the 8k series and 700 series come out in about 2-4 months and see whats worth upgrading to.


there is absolutely no possible way or reason visiontek should give him a 5870 either Stryker. at most maybe a 5850 but i doubt they have very many of those laying around to give as an RMA for a 3 generation old card. when they do upgrade RMA's its typically based on the value of that card at the time of the next generation release which at that time the 4870 and 5770 were prices pretty closely to each other.


took for ever but found a review with the 5770 and 4870 both in it.. http://www.techpowerup.com/reviews/Sapphire/HD_5770_Vapor-X/ numbers are pretty much damn near exactly the same at 1920x1200.
 
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5830 or 5850 at the highest I dont think they made a 5790. But purely on shaders, efficency, power etc the 5770 is at least as good.
http://www.gpureview.com/show_cards.php?card1=615&card2=564
The thing the 5770 suffers from is the limited bus 128bit vs the 4870 256bit, the shader count-rops etc are all the same on the 5770 but power draw is def lower which is good.

Generally Radeons need more core performance then memory performance(shaders are tied to core speed) but at 1920x1080 it is def being held back by the bus width, whereas if you look at the "RAW" numbers alone, the 5770 is at least as powerful, if not slightly more, its the memory bus holding it back by quite a bit.

900 core and 2600 effective memory clock(1300 real) is the fastest factory clocked 5770 that I can see. I am not telling you to, or should overclock, but upping the memory clock should make a difference. And by all means, if possible avoid using AA and lower the AF you use, as this wil chew up the performance the card may want to give you.

Another option, tell them you want a different card, you are not satisified with its performance as games and such that should run perfectly fine are not running as well as they did. A 5830, 6850, or even a 7770 would be a far better pick. it may be an older card, but it was also the "performance" card of its generation, where the 5770 was a "mainstream" for its generation. Unless you can convince them to give you another 5770 on CF them :O
http://www.hwcompare.com/1163/radeon-hd-4870-1gb-vs-radeon-hd-5770/

The best drivers I used for my 6870 were cat 12.4, 12.6, 12.8. Make sure to driver sweeper and use cat manager to uninstall drivers between runs. I use Sapphire TRIX to do my overclocking, again, up to you.

FYI I dont trust that link to the "review" of the performance. I know my 4870 def got alot higher FPS then my buddies 5770 in BC2 and something like Crysis(let alone ArmaII) or for that matter 2560x1440 res with some of the settings being used in said review, I call bs. A 4870 was not within spitting distance of a GTX280 let alone a 285 or 4890 (4870 and a 260 were closer, 260 very much faster then a 5770) But this is my educated opinion having owned a 4870, 6870 and now a 7870. Alot of freinds and alot of rigs over the last couple years :)
 
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