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Sapphire 7770 1GB vs ASUS 7770 2GB vs Gigabyte 6850 1GB

Last response: in Graphics & Displays
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July 17, 2012 6:37:21 AM

Been reading the forums here for a while, but this is my first post here on Tom’s Hardware! So I’m working on my first PC build and I’ve already purchased all of the parts except the Video Card:
CPU: i3-2120
Mobo: ASRock Z68 Extreme3
Case: NZXT Apollo Black
RAM: G.SKILL Ripjaws 4GB
HDD: Western Digital Caviar Blue 500GB
Optical Drive: ASUS DVD writer
PSU: Corsair CX430

The PSU unfortunately has only one 6 pin PCI-E connector, and so my GPU choices are limited (further limited by a $170 budget). After hours of research and searching the threads, I’m torn between three

GPU options (with shipping costs):
$140 – 1GB – Sapphire Vapor-X HD 7770
$150 – 1GB – Gigabyte HD 6850
$168 – 2GB – ASUS HD 7770

Games I plan to play: Battlefield 3, WoW, Crysis 1-3, Batman Arkham City, MW3, shooters mainly.

Monitors: 40” 1920x1080 TV mainly, and a 720p 22 in. monitor on occasion (don’t know exact monitor specs)

Game Settings: Ultra is almost definitely out of the picture with these cards, so high with some medium settings at 40+ fps would be perfect for me.

So here are the questions:
1. Will driver fixes eventually allow the 7770 to surpass the 6850?
2. Is the 6850 overwhelmingly better than the 7770?
3. Do I really need 2GB of VRAM?
4. Would the 2GB 7770 still be better than a 1GB 6850?
5. Overall, which of these will be the best choice (power and future proof-wise)?

I am a little partial to the Sapphire 7770 because of the price (and it looks pretty nice too http://img.tomshardware.com/forum/uk/icones/smile.gif ). And I’m a little leery about the age of the 6850. But whichever one has the most power and can last me about 1 ½ years will be the one I take. Thanks in advance!
July 17, 2012 6:00:45 PM

Thanks for the quick reply. I'll have to look into that, but I'm a little skeptical about using adapters to power a card like that.
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July 17, 2012 6:40:02 PM

NYGiants7 said:
Thanks for the quick reply. I'll have to look into that, but I'm a little skeptical about using adapters to power a card like that.


I used a molex adapter for...well I don't know. Whenever the 9600gt first came out until about 5-6 months ago without an issue. That's a good few years. Worked like a charm.
You should have nothing to fear.

Seconding the 6850.
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July 17, 2012 8:50:38 PM

Do you know if my 430w PSU (even if it's Corsair) can handle the 6870 though? Because prices just went up on the Sapphire 7770, and the 6870 now seems like an awesome deal.
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Best solution

July 17, 2012 9:40:41 PM

http://extreme.outervision.com/PSUEngine

According to this, it should work. I tossed in your specs and the total draw at 90% load was 301 or so watts. I didn't include an optical drive cause I figured that's enough.

Though w/capacitor aging and such, it may still be close. :X
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July 17, 2012 9:59:13 PM

smakadopolis said:
http://extreme.outervision.com/PSUEngine

According to this, it should work. I tossed in your specs and the total draw at 90% load was 301 or so watts. I didn't include an optical drive cause I figured that's enough.

Though w/capacitor aging and such, it may still be close. :X


Yeah, considering I can't afford to replace any parts, I don't want to risk any hardware failure due to a stressed PSU. I'm probably going to get this 6850 instead:
http://www.newegg.com/Product/Product.aspx?Item=14-102-...

At $135, this is perfect.
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July 18, 2012 6:52:58 AM

Best answer selected by NYGiants7.
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