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Anxiety attack!!!

post #1 of 11
Thread Starter 
sorry bout the tittle, i'm just really fidgety right now,
I want to take my first step into water cooling, but am on a bit of a budget, being christmas and all, and I cant decide between the xspc rasa 450 and the rasa 750 kits. From what I can tell, there very similar, only the 750 has a bigger resevoir/pump and a larger radiator. I plan to have this hooked up to my cpu only, and my question is, how much better performance (temps) would the 750 give me over the 450?
post #2 of 11
Depends on the CPU.

Chances are it will be better either way, but how much better is the question.
    
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post #3 of 11
It depends on if the CPU is over clocked but you should see a nice decreese by about 5c i should think,

Ive got watercooling on my new i5 rig but not fully up at the moment as im modding,

But i did have it on my AMD rig also got about 25C Down from 32c But thats was xtreemly cold

But as logic goes thicker the rad the cooler the item =)
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post #4 of 11
Thread Starter 
yea, I understand that the 750 would be better, but im curious as to if the performance increase justifies my purchase of it over the 450. I have an i7 920 clocked at 4GHZ 1.375V, currently under a TRUE 120. and yes, how much better really is my question lol
post #5 of 11
To be honest if your getting that under air at the moment all i can see is a little improvement in proformance and possibly a few Degrees cooler than your getting at the moment as the processor is working its butt off already
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post #6 of 11
I always look at it this way:

Air cooling is constrained by the heat exchange dimensional limits...only so much tower you can cram above the CPU socket and hang off the MB...it's essentially a 120 sized radiator without all the water mess.

Water cooling however transfers the heat into the water which can then be removed via a remotely located radiator. The single most significant benefit to this is the radiator size and capacity is entirely user defined. More importantly, water cooling allows the user to have high performance AND low noise levels because you can mitigate the poor air flow (low speed fans) with larger and more radiator area.

My suggestion: Always go as large in the radiator area as possible. This will afford you more flexibility in using slower and quieter fan speeds and or more performance than any other component. It's also the one big advantage that water has over air...take advantage of that if you're going to bother with water.

Not that you can't have good performance with a smaller radiator...you can, but silence plus high performance usually means mitigating with big radiator capacity.
    
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post #7 of 11
Thread Starter 
so your saying the larger radiator will overall be better? I might jusst do that then. and you don't think I'll get much better results? I though 4ghz was pretty standard for an i7, especially since my dad's got a 930 running at 4.3ghz on his noctua lol
post #8 of 11
heck get the 750,i did and installed it yesterday.man i love these low temps
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post #9 of 11
Id get the 750 larger rad and stronger pump the 450 probly will cool along lines of high end air or a h70.
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SABERWOLF
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XEON-WOLF
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F3-12800CL9S-4GBRL WDC WD1001FALS-00J7B1 ST31000340AS WDC WD7500AAKS-00RBA0 
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Hitachi HDS723020BLA642 ihas 624-A SilverStone Heligon HE01 windows 10 64 Pro 
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post #10 of 11
Thread Starter 
sweet, im gonna do that then, any tips for me?
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