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7950 vs. 660 Ti

post #1 of 31
Thread Starter 
Hello everyone,

EDIT: I have decided on a 7950 as now I realize it's on par with 670 and not 660 Ti. However, keep the opinions on the 7950 I should buy coming as I haven't really decided on that...

I am going to upgrade my Graphics Card from a weak GT 520 to a 7950 (decided).
I am using a 1920x1080 monitor and would be playing mostly games like Skyrim, GTA IV and V when it comes out, AC3, and may be BF3. My CPU is i5-2320.

I wouldn't like to rely on the overclock performance cards (it's not a guarantee anyway and I don't want to touch the voltages which will void the warranty). Which 7950 should I take?

Here's a general price guideline (in SGD; I stay in Singapore):
MSI 7950 TFIII - 475
Sapphire 7950 OC w/ Boost - 425
Sapphire 7950 Vapor-X - 475

MSI 660 Ti PE - 485
Asus 660 Ti - 489

I will also be getting a CM Silent Pro Gold 600 W PSU to power the card which I believe would suffice, am I right? (or should I step down to a same model but lower wattage of 550 W to save 20 SGD?)

For the PSU, I could also get these:
Seasonic X Series 660W Gold for 168 SGD
Thermaltake T. Power ST 650W Gold for 145 SGD


Please help me decide and I really appreciate you reading this thread smile.gif

EDIT: Looks like I will settle with the 7950, and probably the 7950 Boost version as it's the cheapest 7950 here and the difference between Vapor-X and it doesn't seem to justify the 50 SGD gap...
Edited by Oxygoblin - 2/3/13 at 5:17am
post #2 of 31
The GTX 660 Ti's are pretty overpriced.
The 7950 Vapor-X seems the best choice IMO. faster, have tons more vram & and most of the time overclock much higher (reaching 680 and 7970GE territory).
Also try to find a PSU other than CM and the wattage is slightly higher (700-750 Watts to be on the safe side) 600 Watts is the minimum for a 7950.

Edit :- The recommended is 500 Watts so you will be fine with 600 Watts.
Edited by HeadlessKnight - 2/2/13 at 5:37am
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post #3 of 31
7950 is undoubtedly the best out of those two. If it were GTX 670 and 7950, then you might want to consider.

If you won't be overclocking, then the Sapphire Vapor X is your best bet as it factory overclocked.

However, if you feel like you'll be overclocking in the future, the Vapor X is not a good choice, because it is voltage locked. For overclocking, you might want to look for another manufacturers, like Gigabyte.

The PSU is fine. A lot smaller one would do wattage wise, but i don't know about the quality of CM PSU's so it's up to you.
Edited by Fulvin - 2/2/13 at 5:31am
post #4 of 31
Quote:
Originally Posted by Fulvin View Post

7950 is arguably the best out of those two. If it were GTX 670 and 7950, then you might want to consider.

If you won't be overclocking, then the Sapphire Vapor X is your best bet as it factory overclocked.

However, if you feel like you'll be overclocking in the future, the Vapor X is not a good choice, because it is voltage locked. For overclocking, you might want to look for another manufacturers, like Gigabyte.

Newer Gigabytes with FZ1 or F3 BIOSes are voltage locked (They come with Boost BIOS and 1 GHz @ 1.250mV) . only old revisions support overvolting.
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post #5 of 31
Quote:
Originally Posted by HeadlessKnight View Post

The GTX 660 Ti's are pretty overpriced.
The 7950 Vapor-X seems the best choice IMO. faster, have tons more vram & and most of the time overclock much higher (reaching 680 and 7970GE territory).
Also try to find a PSU other than CM and the wattage is slightly higher (700-750 Watts to be on the safe side) 600 Watts is the minimum for a 7950.

A 7950 crossfire draws about 290W, mind you not overclocked so he's in no trouble what so ever. A quality 650 Watts psu will hold a relatively new pc mildly oc-ed with no problems including a 7950 crossfire ;p
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post #6 of 31
Quote:
Originally Posted by HeadlessKnight View Post

Newer Gigabytes with FZ1 or F3 BIOSes are voltage locked (They come with Boost BIOS and 1 GHz @ 1.250mV) . only old revisions support overvolting.

You can always flash the older BIOS. Besides, that voltage should give you plenty headroom by itself.

E: They're not hardware locked, are they?
post #7 of 31
Quote:
Originally Posted by Fulvin View Post


You can always flash the older BIOS. Besides, that voltage should give you plenty headroom by itself.

The newer revisions from what I've heard are hard locked, so no flashing won't work.
Gigabyte are cherry picking the low ASIC quality chips for their WF3 coolers. Most of the time the overclock will be terrible even with that high stock voltage.
There is a thread here in OCN about Gigabyte 7950s and most of the overclocks are 1100 MHz or below which is terrible.
If I want to OC I will avoid Gigabyte 7950 at all cost.
Edited by HeadlessKnight - 2/2/13 at 5:42am
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post #8 of 31
7950 all the way.
Quote:
Originally Posted by Oxygoblin View Post

I will also be getting a CM Silent Pro Gold 600 W PSU to power the card which I believe would suffice, am I right? (or should I step down to a same model but lower wattage of 550 W to save 20 SGD?)

500W is fine for a single card, 650W for Crossfire.

What CPU do you have?
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post #9 of 31
Quote:
Originally Posted by HeadlessKnight View Post

The newer revisions from what I've heard are hard locked, so no flashing won't work.

Gigabyte are cherry picking the low ASIC quality chips for their WF3 coolers. Most of the time the overclock will be terrible even with that high stock voltage.
There is a thread here in OCN about Gigabyte 7950s and most of the overclocks are 1100 MHz or below which is terrible.
If I want to OC I will avoid Gigabyte 7950 at all cost.

That sucks, i had no idea. Are there any good unlocked ones out there anymore? I ordered Gigabyte 7950 myself, but i can still make changes to the order, which is why i'm asking.

Bit offtopic, forgive me
Edited by Fulvin - 2/2/13 at 5:46am
post #10 of 31
the HD 7950 boost is a GTX 670 equivalent. seriously the GTX 660 Ti is no match. is the Sapphire 7950 OC w/ Boost the card with the dual x cooler ? the dual x cooler is very good . the average overclock of 1100 - 1150 mhz would put your card on par with HD 7970 Ghz. thumb.gif

http://www.newegg.com/Product/Product.aspx?Item=N82E16814202006
Edited by raghu78 - 2/2/13 at 5:47am
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