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[Expreview] What CPU does Radeon HD 7970 Need ? - Page 2

post #11 of 53
Quote:
Originally Posted by JMCB View Post

I don't really think of SB as budget PC gaming. When one of the best performabce CPUs on the market is less than $300 (2600K) and a i5 2500K is less than $200, budget would be anything less than $100.

Absolutely agree here. It makes literally zero sense to buy a SNB-E for a gaming PC.
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post #12 of 53
My gosh...I am having a heck of a face palm moment here. I have never tried running HT but only having two cores enabled. In this test on Batman 2 the change from 2C/4T and 4C/4T was not much...103 to 113 fps. If you are that high in the fps those 10 frames will not be missed.

I wonder what this would do for overclocking and heat output. I can't believe I've never tried it. HT is one of those things that if I am not doing some massive multitasking I just instinctively disable. i know what I will be doing tonight.

Though I am expecting that turning on HT will still limit my OC to 3.8GHz regardless of how many cores are enabled, but it won't hurt to try it.

Doh...min frames on 2C/4T was 18 lower...30 vrs 48. Hmm I still think it might be worth a try. i am sure it will vary alot depending on the game as well. And if that minimum only happen for one second a slow down to 30 or 48 might not be much different any way...they really should have posted the max frames, though it must be similar since the average differed so little
Edited by Vagrant Storm - 1/18/12 at 9:14am
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post #13 of 53
Quote:
Originally Posted by Sir Shfvingle View Post

Once again, this is the sad case of "how can I place a budget around a really expensive system?" If you have, or are going to get a 7970, should either already have a good SB chip, or you should be getting one. Don't spend $550 then go cheap on something you can get for less than $300...


I think I built a pretty well rounded system based around an i5 2500k and a $500 evga GTX580.. Granted I paid less than $400 for it new... but you get the idea...

I don't encode, I don't do any rendering, 3d work, or anything, why do I need anything more than a 2500k? Hell I would probably be happy with a hyper threaded dual core, but went with the quad for a bit more longevity. I think the "budget" 2500k I bought, as you put it is more than enough to play any game available right now while paired with my 580. I run BF3 maxed at 1680x1050 at 46-60 fps with v-sync on. It ran Arkham Asylum Maxed, and can run Arkham city pretty well too.
     
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post #14 of 53
So...a decently clocked Quad is plenty, good news for when i someday have enough money to buy the 7970.
post #15 of 53
Quote:
Originally Posted by Phaedrus2129 View Post

Saw a 7970 paired with a stock FX8150 at CES. Ran Crysis 2 maxed on a 5760x1080 display just fine.

I wonder how well it will do when crossfired? Performance lag, maybe?

Thought the FX don't performance as well as the Phenom II cpus, from what I heard/read around the web.
post #16 of 53
2500k should be enough for most games
post #17 of 53
Quote:
Originally Posted by naizarak View Post

2500k should be enough for most games

2500k with a big overclock isn't going to bottleneck any games. Even if a game fully utilizes all threads it can, a 2500k at around 4.8ghz will still do great compared to a 2600k or even 3960k (maybe even better if these other CPUs at stock).
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post #18 of 53
Does anyone have any idea whether a bottleneck will occur here:

-i5-2500k @ 4.2 ghz
-HD7950 crossfire
post #19 of 53
Wut, they tested 1 game and 1 synthetic. What a great test.
    
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post #20 of 53
Quote:
Originally Posted by Empr1ze View Post

Does anyone have any idea whether a bottleneck will occur here:
-i5-2500k @ 4.2 ghz
-HD7950 crossfire

Depends on the settings you play at, if you'll be using eyefinity and a 60 or 120 hz monitor.
But I reckon that 2500k won't have a problem keeping those 2 cards busy... and if it does bottleneck, push it some more thumb.gif
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