Originally Posted by d6bmg
Exactly. It's a complete BS. 220Watt of TDP will make it an oven for sure.
Any Vishera at 5GHz is going to be an oven. If this part is real, they couldn't likely give it a lower TDP.
Originally Posted by RX7-2nr
How can you say that when the world record clock speeds are held by AMD CPUs of the same lineage as the FX-9000? The overclocking headroom is there. It is entirely possible that someone may push this new CPU to 9ghz.
There is nothing that would indicate it's even a new CPU.
If this is a real processor, it's just the cream of the current Vishera dies. Chances are there are at least a few FX-8350s with similar or superior average clocking abilities, and that some of them have been found and pushed under extreme cooling. New records may be set with them, since most of the sorting would have been done already, but headroom is not likely to increase much, certainly not with less than extreme cooling.
After conversion losses and taking other components into account, ~200w still seems like a high estimate. However, I will admit that part may well be exceeding it's rated TDP.
Most other FX-8350 reviews do not show the FX-8350 exceeding it's TDP, but then again, they aren't often using LinX (though many do use Prime, which should be coming pretty close), and TDP is not the same as peak power. LINPACK is probably one of those applications that falls well outside what AMD considers a useful workload.
On the other hand, his Intel figures look accurate (none of the chips he tested ever reached their TDP), so maybe AMD really is lowballing their TDP figures by a significant margin...
Still, I'm skeptical that TDP is really being exceeding by so much. Did this user give any more information as to his other settings? Not all boards, especially not all overclocking boards, strictly follow spec for things like droop or clock throttling.
Originally Posted by Artikbot
Those parts are NOT at idle, get it right.
The VRMs have an efficiency of a 92-93% at most on super high end motherboards. In most cases, at full load they circle mid 80s. If the CPU eats 200W, there's going to be at least
20W wasted on the VRMs. Then there's the chipset power consumption. The peripheral cards power consumption. The USB devices power consumption.
As well as what's lost at the PSU.
281w at the wall is still a lot for a fairly barebones system, but not absolute proof of the part exceeding it's TDP.Edited by Blameless - 6/2/13 at 6:26am