Legit Processor Reviews

Intel Core i7-3770K 3.5GHz Ivy Bridge Processor Review

Manufacturer: Intel
Product: Intel Core i7-3770K CPU
Date: Mon, Apr 23, 2012 - 12:00 PM
Written By: Nathan Kirsch -
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Total System Power Consumption

CPU Power Consumption

Since power consumption is a big deal these days, we ran some simple power consumption tests on our test beds. The systems ran with identical power supplies, Solid-Sate Drives, Memory kits and motherboards from the same company. To measure idle usage, we ran the system at idle for one hour on the desktop with no screen saver and took the measurement. For load measurements, Prime95's in-place large FFT's were run on all cores to make sure each and every processor was at 100% load for maximum power consumption and heat. Curious about other test scenarios, we decided to HAWX 2 the PC game for testing. We also tested a video transcode using HandBrake 0.95 to see how the power draw was on that.

ASUS F1A75-M Pro System Power Consumption

Benchmark Results: Power consumption with the Intel Core i7-3770K was a bit shocking to us.  The load power consumption was amazing, but at idle it was 10 Watts higher than the Intel Core i7-2700K. This could be due to a BIOS issue or just that Ivy Bridge uses a little more at idle due to the new graphics engine.

Total System Power Consumption

Benchmark Results: With the discrete graphics card removed from the system we see the numbers drop big time, but the Intel Core i7-3770K still used more power at idle and during gaming than the Intel Core i7-2700K. On very CPU intensive tasks like Prime 95 and Handbrake the Intel Core i7-3770K was very impressive as it used 23% less power in HandBrake and 13% less in Prime 95!

Next Page - Intel Core i7-3770K CPU Water Temp Testing & Overclocking


Review Index
Page 1 - Intel Goes 22nm and Raises The Bar
Page 2 - Intel Core i7-3770K Processor
Page 3 - Test System & Specifics
Page 4 - SiSoftware Sandra 2012 SP4
Page 5 - x264 HD Encoding
Page 6 - CyberLink MediaEspresso 6.5
Page 7 - Handbrake
Page 8 - POV-Ray 3.7 RC5
Page 9 - Cinebench R11.5
Page 10 - PCMark 7
Page 11 - 3DMark Vantage & 3DMark 11
Page 12 - Resident Evil 5
Page 13 - H.A.W.X. 2 Benchmark
Page 14 - S.T.A.L.K.E.R.: Call of Pripyat
Page 15 - Total System Power Consumption
Page 16 - Intel Core i7-3770K CPU Water Temp Testing & Overclocking
Page 17 - Final Thoughts and Conclusions