Originally posted by: toreses
I saw the Q6700 and Q9300
Q9300 ahas the faster speed but the price is about $260 lower.. I wonder if the kentsfield is better than Yorkfield??
the difference between I can saw from them is the L2 cache. Q6600 is 8M, Q9300 is 6M..
so, what makes the price different?
If we're actually talking Q6700 ($370 cheapest I find) here, the comparable chip is the Q9450/x3350. It sells for less ($350) and has an 8x multiplier. Which even with crappy DDR2 800 memory should read 3.6ghz no problem (450fsb, 900mhz memory). Even my cheapo ADATA can hit 1000. Anand just hit 500fsb with a quad on Nvidia chipset board. One has to consider boards should get more optimized for quad and hit 500mhz regulary at some point as we all move toward quad. At that speed Q9450 hits 4ghz and uses far less watts at the wall.
We're not even counting the fact that this chip has SSE4.1 and is 31% faster in SSE2 (so says anand in a divx benchmark they ran). Adobe premeire just came out with SSE4 optimized code so other major apps shouldn't be too far behind. Since most people don't buy quads for gaming yet (not many games use it at all) the assumption is you want to do some sort of high end stuff.
After I consider the power bill for 3yrs on these two chips (around 70w higher with both @ 3.6 or so, see aforementioned Xbit article), higher $20 on Q6700, the heatsink it would take to cool the Q6700 @ say 3.6ghz (that ain't stock fan), and finally SSE4 I wouldn't want anything but the Q9450 in this case (vs. Q6700).
http://www.anandtech.com/cpuch...howdoc.aspx?i=3066&p=3
"Our G0 Q6600, surprisingly enough, couldn't really get much higher. While the same 3.33GHz overclock was possible at a lower voltage, our max was 3.51GHz (390 x 9.0) without resorting to improved cooling. Even at our max, the system wasn't always 100% stable, we suspect that our G0 chip would end up somewhere around 3.4GHz and fully stable in the long run."
Not stable at 3.51, suspected 3.4. Needs more cooling. 3.6ghz however is a cakewalk on Q9450 and it can do it on stock. Heck, for the $20 difference in chip cost you can throw on an Arctic Cooling Freezer Pro 7 ($22 ewiz). FSB might be a problem for Q9300/9450 (or multi depending on your view) but mhz is a problem for Q6600/6700 without good cooling.
Note: if the 9450's fan looks like my xeon 3110 fan you'll need the freezer pro anyway...LOL. This thing is puny.