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CPU upgrade from PIIx3, 2500k or 8120?

post #1 of 21
Thread Starter 
Hey guys, just stumbled on this forum by chance, and would like some opinions on CPU upgrade. (I have asked this before on another forum, but over a month passed with no replies)

I currently own an Phenom II x3 @3.6Ghz with 2x 4890s in Crossfire. I dont game much, but most of the games i do try are usually playable anywhere from low to high settings, and where CF works it seems like my GPUs run at only about 50-60 %, while the CPU is at 100.

I just recently obtained some cash, and wanted to upgrade my CPU (which i believe is bottlenecking me), but am a bit confused about the choices available, I am gaming on a 24 inch screen @1900x1080. I know benchmarks point in the way of 2500k in every way, but i also read here on this forum that 8120 is not as bad ppl make it out to be.

The options i have: 2500k with single 4890 (already have z68 mobo, but CF is 16x/4x), or 8120 (on sale) with 4890s crossfire 16x/16x. Either way i dont have to buy a mobo, only the cpu, problem is the crossfire with the i5. I plan on OC.

My PSU is 850W, and my current amd motherboard is Gigabyte 990FXA UD7.

What would you choose in this situation, any thoughts?
post #2 of 21
I'd go for the i5 2500k, just because it's such a great processor.

You could sell the spare 4890 and start getting some money together for your next gpu! Although you could also sell your phenom and the 990x motherboard and you'd definitely be close to 7950 money with that. smile.gif
    
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post #3 of 21
Just get the 2500K, the FX-8120 is a bit of a downgrade in terms of single threaded performance. 4x shouldn't be that big of a deal either.
 
A Noisy Box
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i5-2500k @ 4.0GHz Gigabyte Z68X-UD5-B3 Crossfire Gigabyte HD 6850s at 900MHz 4x2GB G.Skill Trident 1600MHz DDR3 
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Intel X-25M 120GB SSD, 500GB HDD + 60GB SSD cache Pioneer 22x DVD-RW Windows 7 Ultimate 64bit Dell U2311H 
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A Noisy Box
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i5-2500k @ 4.0GHz Gigabyte Z68X-UD5-B3 Crossfire Gigabyte HD 6850s at 900MHz 4x2GB G.Skill Trident 1600MHz DDR3 
Hard DriveOptical DriveOSMonitor
Intel X-25M 120GB SSD, 500GB HDD + 60GB SSD cache Pioneer 22x DVD-RW Windows 7 Ultimate 64bit Dell U2311H 
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post #4 of 21
960T.
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post #5 of 21
Thread Starter 
Selling hardware is kind of a pain here in Norway, i usually just give old parts away to friends and family for free smile.gif

Edit: So i5 2500k with single 4890 is what you guys recommend for gaming than?
post #6 of 21
+1 2500K wink.gif
post #7 of 21
Ive seen another thread which implies that the i7 2600k should now be the recommended chip for gaming as some modern games (BF3 to name one) can utilise hyperthreading, and I'd assume a couple games in the future can aswell. However it all depends, not sure how much of an FPS increase itll be with hyperthreading, etc etc. However you cant go wrong with the i5 2500k biggrin.gif
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500gb Seagate Barracuda 12, 1.5TB Samsung Silent LG Super Multi Water Cooling Windows 7 64bit Home Premium 
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500gb Seagate Barracuda 12, 1.5TB Samsung Silent LG Super Multi Water Cooling Windows 7 64bit Home Premium 
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post #8 of 21
Thread Starter 
Thx for all tthe replies guys, guess im going with 2500k than smile.gif!
post #9 of 21
All things equal, I would go with the 2500k. Ultimately though, I don't quite know what to recommend. Where are you from and what are prices like? Price being a factor, we have to know what to consider when we recommend things.
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Little Messy
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The 1720 (Laptop)
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Phenom II x4 955 (@ 3.8) MSI 890GXM-G65 ASUS HD 6850 (@ 975/1125) G.Skill RipjawX 
Hard DriveHard DriveOptical DriveCooling
Samsung Eco Green Samsung F3 Sony DVD+-RW Writer CoolerMaster Hyper 212+ 
OSOSMonitorKeyboard
Windows 7 Home Premium Arch Linux Dell ST2420 Microsoft Reclusa 
PowerCaseMouse
OCZ StealthXStream II 600W NZXT Vulcan Logitech MX518 
CPUMotherboardGraphicsRAM
Core 2 Duo T8300 Dell's own 8600M 4.0GB Hyundai Electronics DDR2 
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250GB Hitachi / 250GB Samsung Windows Vista 32 bit 
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post #10 of 21
Quote:
Originally Posted by The Muffin Man View Post

Ive seen another thread which implies that the i7 2600k should now be the recommended chip for gaming as some modern games (BF3 to name one) can utilise hyperthreading, and I'd assume a couple games in the future can aswell. However it all depends, not sure how much of an FPS increase itll be with hyperthreading, etc etc. However you cant go wrong with the i5 2500k biggrin.gif

The gap is starting to widen but the 2600K still loses out in price/performance.
 
A Noisy Box
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CPUMotherboardGraphicsRAM
i5-2500k @ 4.0GHz Gigabyte Z68X-UD5-B3 Crossfire Gigabyte HD 6850s at 900MHz 4x2GB G.Skill Trident 1600MHz DDR3 
Hard DriveOptical DriveOSMonitor
Intel X-25M 120GB SSD, 500GB HDD + 60GB SSD cache Pioneer 22x DVD-RW Windows 7 Ultimate 64bit Dell U2311H 
KeyboardPowerCase
Black Widow for Gaming + Apple wired keyboard Corsair TX750 HAF 922 + 200mm side fan 
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A Noisy Box
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CPUMotherboardGraphicsRAM
i5-2500k @ 4.0GHz Gigabyte Z68X-UD5-B3 Crossfire Gigabyte HD 6850s at 900MHz 4x2GB G.Skill Trident 1600MHz DDR3 
Hard DriveOptical DriveOSMonitor
Intel X-25M 120GB SSD, 500GB HDD + 60GB SSD cache Pioneer 22x DVD-RW Windows 7 Ultimate 64bit Dell U2311H 
KeyboardPowerCase
Black Widow for Gaming + Apple wired keyboard Corsair TX750 HAF 922 + 200mm side fan 
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