- Jan 4, 2014
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Q9300 vs q8400
- Thread starter Salman Soomro
- Start date
Solution
- Apr 22, 2009
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They're pretty comparable: http://www.anandtech.com/bench/product/75?vs=89
They are both 95W processors: http://www.cpu-world.com/Compare/815/Intel_Core_2_Quad_Q8400_vs_Intel_Core_2_Quad_Q9300.html
The Q9300 might be slightly better tech. And therefore better for O/C'ing, although I haven't had either one to say for sure.
They are both 95W processors: http://www.cpu-world.com/Compare/815/Intel_Core_2_Quad_Q8400_vs_Intel_Core_2_Quad_Q9300.html
The Q9300 might be slightly better tech. And therefore better for O/C'ing, although I haven't had either one to say for sure.
- Apr 27, 2009
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The 8400 can potentially overclock a bit more, before hitting the typical FSB wall of around 400-450, due to the 8.0 multiplier vs the 7.5 on the Q9300.
As a rule of thumb, clock speed > cache. i.e. overclock would be better than more cache, all else being equal.
However, since they are both R0 stepping, The Q8400 maybe a 'die harvested' version of the same chip, i.e. defective areas in the cache that would make it a Q9xxx are disabled. Harvested chip typically have lower max OC, especially on mature, 2nd revision steppings (C2Q yorks 1st stepping was C0, followed by C1 and R0).
I personally would pick Q9300 for reliability, day-to-day use, with mild OC up to 80-90% of max OC.
I will only pick the Q8400 if it's 80% or more cheaper.
However, since they are both R0 stepping, The Q8400 maybe a 'die harvested' version of the same chip, i.e. defective areas in the cache that would make it a Q9xxx are disabled. Harvested chip typically have lower max OC, especially on mature, 2nd revision steppings (C2Q yorks 1st stepping was C0, followed by C1 and R0).
I personally would pick Q9300 for reliability, day-to-day use, with mild OC up to 80-90% of max OC.
I will only pick the Q8400 if it's 80% or more cheaper.
- Apr 27, 2009
- 37,607
- 3,278
- 143,290
OP, are you looking to upgrade an existing system with one of those chips? If not, to be perfectly honest, you would be better served getting a Haswell i3 and an H81 motherboard if your budget is really low.
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