Intel Core i7-3820 3.6GHz Processor Review

Legit Processor Reviews

Manufacturer:	Intel
Product:	BX80619I73820
Date:	Thu, Feb 02, 2012 - 10:00 AM
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: The Intel Core i7-3820 Sandy Bridge-E platform used significantly less power than the Core i7-3960X platform in load situations. For example, in Prime 95 it used 94 Watts less power! The Core i7-3820 was slightly faster than the Core i7-2700K in most of the benchmarks and here you can see that it also uses a little more power across the board as well. The idle power numbers for the entire LGA2011 platform with the Core i7-3820 was 57 Watts, on average.

Next Page - Intel Core i7-3820 CPU Overclocking

Review Index

Page 1 - The $285 Sandy Bridge-E Processor
Page 2 - The Test Systems
Page 3 - SiSoftware Sandra 2011 SP5
Page 4 - x264 HD Encoding
Page 5 - CyberLink MediaEspresso 6.5
Page 6 - Handbrake
Page 7 - POV-Ray 3.7 RC3
Page 8 - Cinebench R11.5
Page 9 - PCMark 7
Page 10 - 3DMark Vantage
Page 11 - Resident Evil 5
Page 12 - H.A.W.X. 2 Benchmark
Page 13 - S.T.A.L.K.E.R.: Call of Pripyat
Page 14 - Total System Power Consumption
Page 15 - Intel Core i7-3820 CPU Overclocking
Page 16 - Final Thoughts and Conclusions

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