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does a cooler that has copper on it keep cpu cooler then a heatsink without copper?

post #1 of 8
Thread Starter 
So I remembered I had this bulky cpu cooler that has copper parts on the heatsink. from my old AMD Phenom II x4 965BE, and this stock cooler that came with the fx-6300 is the regular little block heatsink.. Will it stay cooler as far as I can see it stays about 5 to 10c, so my question is really if I was to get a better air cooler... (not really want the hassle of water cooling atm.) should I look for a heatsink with copper parts? and does the copper really accually help it to be cooler?
post #2 of 8
Copper has twice the thermal conductivity of aluminum. Here's a chart for your review:

http://www.engineeringtoolbox.com/thermal-conductivity-d_429.html

Copper thermal conductivity is about 400 W/mK and remains fairly steady at normal temps, Aluminum is 205-215 W/mK at typical temps.

If you look at that chart, you'll see that very few natural materials can beat Copper for thermal conductivity. Silver is marginally better, but not worth the cost differential.

Greg
post #3 of 8
Thread Starter 
Ty so much for that. I am wondering now why havent they made a air cooler that is pure copper? Would it be more expensive and thats why? or is it that copper is harder to manufacture?
post #4 of 8
They do make some air coolers that are 100% copper, and plenty of water blocks. Problem is mainly that copper tarnishes quickly in air and looks nasty unless you put a lacquer finish on it - which you can't do with a heatsink because the lacquer would diminish any advantage the copper had over aluminum in the first place. The usual treatment for copper heatsinks is nickel plating to prevent corrosion.

Copper is only $3.25 USD a pound right now, Aluminum is $0.82 USD a pound. I doubt raw materials costs are of any real concern with the profit margin these heatsink companies are making.

Greg
post #5 of 8
Thread Starter 
very true. o btw still running prime95. it seems my max load temp for cpu atm is 45c vrm is at 60c atm. I can now see it is ALOT cooler then it was with the stock cooler that came with the fx-6300. I guess the old 965be must have ran pretty hot. im running at 3.9ghz for some reason at 4.0ghz the 6th core on my cpu is getting a hardware failure in prime95. ill try to find more info about it in logs to see what the error was cant remember off the top of my head right now. but how are my temps looking do you think I can ramp this thing up to passed 4.2 or is my board not going to handle anything above 4.2ghz+?

But that's another convo. ill probably save for another thread.

I keep my house around 59f 65f (I love the cold biggrin.gif) but that's probably main reason. why cpu temp is what it is.

So to finish the convo off about copper parts on a heatsink... VERY nice.

I now know I wont be looking at cooling solutions that don't have copper biggrin.gif.
post #6 of 8
Quote:
Originally Posted by Kanji View Post


I now know I wont be looking at cooling solutions that don't have copper biggrin.gif.

There's more to air cooling than just the material wink.gif .

Surface area of the fins, # of heatpipes, layout, shape of the base, design, fans used ...

In the end, just look at the reviews, Preferably from one reliable source so you can accurately compare the results.
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Black Betty
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post #7 of 8
Thread Starter 
yes very true. But I was saying take 2 coolers for example both have the same things except one has copper.
post #8 of 8
Quote:
Originally Posted by Kanji View Post

yes very true. But I was saying take 2 coolers for example both have the same things except one has copper.

Then make another with Silver as the base metal.
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Phantom
(11 items)
 
Old Rig
(11 items)
 
My Ultimate Rig
(13 items)
 
CPUMotherboardGraphicsRAM
AMD FX8350 ASUS Sapertooth 990fx  MSI R7970/OC G.SKILL Ripjaws X Series 8GB 
Hard DriveOptical DriveCoolingOS
Samsung 830 SSD Poineer 15x BDR Swiftec H220 Win 7 Pro 64bit 
MonitorPowerCase
Samsung 32" HDTV Antec 620watt  NZXT Phantom 820 
CPUMotherboardGraphicsRAM
AMD Phenom II 955be ASUS M5A97 AM3+ EVGA GTX 560 Corsair 
Hard DriveOptical DriveCoolingOS
Seagate 7200k Lite-On DVD Burner CM H212 EVO Win 7 64bit Home Premium 
MonitorPowerCase
Hannspree 19" HDTV Antec EA 500D Cougar 
CPUCPUMotherboardGraphics
AMD Opteron 6378 AMD Opteron 6378 ASUS KGPE-D16 Nvidia Titan 
GraphicsRAMRAMRAM
Nvidia Titan Kingston 32GB (2 x 16 GB) 240-Pin DDR3 SDRAM Kingston 32GB (2 x 16 GB) 240-Pin DDR3 SDRAM Kingston 32GB (2 x 16 GB) 240-Pin DDR3 SDRAM 
RAMHard DriveHard DrivePower
Kingston 32GB (2 x 16 GB) 240-Pin DDR3 SDRAM Samsung 840 ssd Samsung 840 ssd Seasonic 
Case
NZXT 820 Phantom 
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