Yesterday, I have put Haswell for a spin on my watercooled test bench.




CPU: Intel Core i7 4770K
MB: Asus Maximus VI Extreme, BIOS 0607
DRAM: G.Skill TridentX 11-13-13-25-1T 2 X 4GB
GPU: Gigabyte HD7970, MSI's special BIOS, Driver Catalyst 13.6 beta
Storage: 2x Crucial M4 128GB raid0, FW 000F
ODD: LiteON DVD-RW
PSU: Corsair AX1200
Cooling: Custom watercooling - EK Supreme HF plate #6 CPU waterblock, 2x XSPC RX360 radiator, Swiftech MCP655 pump, EK FC7970 GPU waterblock, EK Multioption X2 Advanced reservoir, XSPC
1/2" ID 3/4" OD white tubing, 12x Scythe GT AP-15 1850rpm 120mm fan + Aerocool Shark 120mm fan, Coolaboratory Liquid Pro thermalpaste etc.
Casing: Dismatech Easy Dual V2 Bench Table
OS: Windows 7 Ultimate 64-bit SP1

At stock clock Haswell is actually a lot better than Ivy, in terms of heat and performance. It is not hot at all.

4770K @ stock









Somehow when it comes to overclocking, things became different.
Don't know if it's just me but my 4770K is a dud, it loves voltage. Best it could do is 4.8GHz only.

4770K @ 4.8GHz





4770K vs 3770K
Look at the Cinebench score, the 4770K @ 4.6GHz (undelidded) performs on par with the 3770K @ 5.0GHz (A golden chip which must be delidded)

4770K @ 4.6GHz


3770K @ 5.0GHz


Considering Haswell has 7-10% more IPC performance than Ivy, Haswell is actually better than Ivy in terms of overclocking and heat.
As said earlier, my retail 4770K could be a bad chip. Ahh looks like I have to play with silicon lottery again, to hunt for a golden chip.