Originally Posted by Xye
ok read the OP and the 480 rad might not be enough for cpu + 2 470's.... wouldhave to check on that.
More than enough, especially with push / pull fans.
If we take the results for the GTX360 from Skinnee's test
we get this:
A 480 rad can dissipate 4/3 of the heat of a 360
Push / pull gives a 20% performance increase (see Martin's testing
CPU TDP of 200W (OC'd)
GTX 470 TDP of 215W (stock)
This gives us a total heat output of 630W at full load (rarely seen). To convert that figure so we can use the table above multiply by 3/4:
630 * 3/4 = 427.5W
Allowing for the 20% performance gain gives:
427.5 * 0.8 = 378W
Looking at the table, with fan speeds of 1800RPM, you can dissipate 378W with a water - air delta of ~5C (5.52C) which equates to high performance.
Therefore the 480 rad will be plenty for the CPU and two GTX 470s, and will allow enough room to OC the graphics cards whilst still providing good performance.
is running a rig with a 5870 and a 5890 (higher combined TDP than 2 470s) and a CPU on a RX480 rad with push / pull GT-1850s, works well for him.Edited by GingerJohn - 2/21/11 at 8:54am