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Upgrade from c2q 9xxx to i5-2xxx

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December 13, 2011 5:58:38 PM


Hello,
i am using a c2q 9300 @3375Mhz (450x7.5), ddr2-800 @900Mhz.
Thinking of upgrade to i5-2500k + ddr3 1600. Just curious, how much performance gain?
i do gaming (bf3) 50%, watch HD movie 30%, and web browsing 20%.
thanks!

More about : upgrade c2q 9xxx 2xxx

a c 113 à CPUs
December 13, 2011 6:56:11 PM

You may see a slight improvement in BF3, but none while watching HD movies or web browsing.
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December 13, 2011 7:08:17 PM

thx GhislainG:
when you said 'slight', how much exactly? 5%? 10%?
when playing bf3(preset high, no MSAA) in MP mode, the total CPU usage is between 80-90%, and the GPU (HD6850) is 100%. May I say my c2q 9300 @3375Mhz is NOT bottle-necking the HD6850?
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December 13, 2011 7:40:52 PM

your cpu is not bottlenecking ur gpu

i have 2500k and gtx460. the usages are ~60% and 100% playing bf3.

YES i need a better gpu...
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December 13, 2011 8:15:56 PM

CPU shouldn't be the problem for a single card but...

I have a c2q 9450 @ 3.2 (stock is 2.66) and DDR3 1333 RAM and 2 x GTX 560 SoC (super overclock).

With one card, my system was not bottlenecked, but in SLI I only saw roughly a 25% increase in performance while my CPU was at stock speeds. Once I overclocked my CPU to 3.2 I saw another massive 15% or so increase to performance (I tested using Crysis and 3DMark Vantage). I still feel my CPU is keeping me back, so I'm looking forward to Sandy Bridge upgrade very soon.

All that being said, Big Mac, if you play alot of multiplayer in BF3, then a new CPU will help heaps. Multiplayer in any game uses much more CPU power then single player :) 
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a c 113 à CPUs
December 13, 2011 8:30:11 PM

Big-Mac said:
thx GhislainG:
when you said 'slight', how much exactly? 5%? 10%?
when playing bf3(preset high, no MSAA) in MP mode, the total CPU usage is between 80-90%, and the GPU (HD6850) is 100%. May I say my c2q 9300 @3375Mhz is NOT bottle-necking the HD6850?

A faster CPU will be less busy, but BF3 benchmarks show that a better GPU should be more important.
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a c 79 à CPUs
December 13, 2011 8:56:20 PM

Assuming that a 3.375 GHz Q8300 is like a stock Q9650 3.0.

http://www.anandtech.com/bench/Product/49?vs=288

There's a bump depending on the game, i'd say not much in some games, Bf3 for instance, lots on others, skyrim for instance.
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a c 472 à CPUs
December 13, 2011 10:46:37 PM

Generally speaking the performance increase between a C2Q and i5 is on average 20% if both have the same clockspeed. Performance in games varies from game to game; from little or none to moderate (like 9% or so). In games that are CPU dependent the performance increase can be significant. Nearly all 1st person shooter are dependent on the graphics card.
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a b à CPUs
December 13, 2011 11:05:34 PM

jaguarskx said:
Generally speaking the performance increase between a C2Q and i5 is on average 20% if both have the same clockspeed.


That is a good rule of thumb increase, but also the latest round of i5's can do as much as 33% more clock speed than the c2q's.
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December 14, 2011 1:16:07 PM

Best answer selected by Big-Mac.
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December 14, 2011 1:16:13 PM

thanks everyone.
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