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6870 vs 5870 Which one is a better deal?

post #1 of 16
Thread Starter 
So i'm going to build a new gaming rig for college and I am eagerly waiting for the new Sandy bridge as well

My budget is kinda tight so the best cards for my price range is
either 5870 or 6870

5870 is currently $239 after rebate and newegg also gives out a $15 gift card
6870 is currently $209 after rebate

I've been searching forums for quite a while
to decide which card is better but i couldn't decide...

My monitor is 24" with 1920 x 1080 resolution
I'm going to running latest games and I play starcraft 2 a lot (3000+diamond zerg)
So i need a card that can run sc2 the best and also just has the best value overall..


1. Performance question:
I'm keep hearing that 6870 and 5870 have very similar performance
I know that 5870 is a faster card overall but I keep hearing 6870 will do better in the future with DX11 and drivers and etc...
Is this true? will 6870 do better in the futuer with future games?
How much frame difference are there between 6870 and 5870??
and which card has better performance in starcraft 2?

I'm not sure if I'm going to be using crossfire because I'm going to use a mATX board with a Asus Xonar sound card....


2. Heat & Noise:
I couldn't find any sources or benchmarks regarding the heat & noise comparison between 6870 and 5870...
I'm builidng a mATX system that is going to be htpc as well
I'm using Lian Li v354 http://www.newegg.com/Product/Produc...-301-_-Product

the cooling will not be that great compared to mid tower or full tower cases
so the noise and heat is a big concern for me..
can anyone tell me load temps/average temps/overclock temperatures of 6870and 5870?


Which one is the better card guys!!!!! please tell me T_T!!
post #2 of 16
5870 is better and faster, but you save money on 6870

but either card will max out most games on 1080p

sc2 is a very CPU dependent game so the CPU matters more in this case.

expect similar heat and noise from both cards

welcome to OCN please fill in your system specs under User CP
post #3 of 16
1. Yep, that's right. 5870 is better in general, but 6870 can handl Tessalation (Dx11 feature) better. So, if you plan on keeping the card for 2-3 years I'd take the 6870. Although I wouldn't really take it. I'd take a 6950 and unlock it to 6970

2. I can't tell anything about the 6870 but the 5870 is very silent below 30% fan speed. 35% is audible, 40-50% is annoying. 50% + is a disaster. However. The fan hardly ever goes above 40% and that's while gaming. If you watch a movie or something similar, you won't hear it. I can only assume the 6870 would make approx. the same noise.

On full load my 5870 reached 75°C at 39%-40% fan speed.
Idle temp at 28°C, 19°C ambi.
post #4 of 16
Given your information, I would say go for the 6870 since you can get it $30 cheaper. You can add a second one later. 6870 CF is fantastic combo.
    
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post #5 of 16
I'm using the 5870 right now. Fantastic card, very nice. I'm not a huge fan of ATI right now but this card is very good and runs all of my games very nicely. I've had much much worse.

However with that said, my next card is Nvidia
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post #6 of 16
1 card - 5870.
Crossfire - 6870s.
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post #7 of 16
5870 is a stronger single card... but 6870 is only slightly weaker as a single card, it has more dx11 features and is stronger than the 5870 in crossfire.

So unless you really don't plan on crossfire, the 6870 being both cheaper, newer and better in Crossfire is the way to go.
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post #8 of 16

(source tomshardware)

5870 is only slightly better. go for better deal
post #9 of 16
I would go 6870. Im kicking myself right now cuz I just missed an open box 6850 at new egg for 139.99. Had to work.
post #10 of 16
I was in the same boat and I bought two Asus HD5850 DirectCU TOP cards for crossfire for $165 each last week, easy overclock to 900/1200 and higher.
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