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Old June 1, 2012, 09:55 PM
windwithme windwithme is offline
Join Date: Jul 2009
Posts: 580

Intel Core i7-3770K overclocking performance
CPU 100 X 48 => 4800MHz 1.290V
DDR3 2400 CL10 11-11-27 1T 1.608V
GPU HD 4000 1150MHz

Hyper PI 32M X8 => 12m 02.920s
CPUMARK 99 => 756

The performance scores of 3770KOC 4.8GHz in Hyper PI and CPUMARK 99 are almost equal to the performance around 2700K OC 4.9GHz after comparison

Nuclearus Multi Core => 33339
Fritz Chess Benchmark => 37.82 /18153

The performance score obtained by Fritz Chess Benchmark falls in the level around 2700K 4.95GHz

CrystalMark 2004R3 => 372168

CPU => 9.80 pts
CPU(Single Core) => 2.04 pts

2700K OC 5GHz causes the CPU => 9.74 pts / CPU (Single Core) => 2.03 pts
Among the CPU test items of CINEBENCH R11.5, 3770K OC 4.8GHz gets better performance in single thread and 4C8T

Running Time => 3m 55s
x264 FHD Benchmark => 28.5

PCMark Vantage => 26118

From above test, the performance of Core i7-3770K when overclocking to 4.8GHz almost equals to the performance of the last-generation Core i7-2700K when overclocking to 4.9~5GHz.
That is to say, given the same frequency and specification, the performance obtained by Ivy Bridge is 100~200MHz higher than that of Sandy Bridge.
So we can consider the Ivy Bridge of as the upgrade of Sandy Bridge.
The CPU processing is increased to 22nm, and the existent technologies are improved in the new version.
The built-in GPU support with 3-export and Virtu Universal MVP are all new useful features.

DRAM bandwidth test
DDR3 2400.4 CL10 11-11-27 1T
ADIA64 Memory Read - 24893 MB/s
Sandra Memory Bandwidth - 28733 MB/s
MaXXMEM Memory-Copy - 27807 MB/s

DDR3 2600.4 CL11 12-12-27 2T
ADIA64 Memory Read - 25433 MB/s
Sandra Memory Bandwidth - 30558 MB/s
MaXXMEM Memory-Copy - 28481 MB/s

The structure of Sandy Bridge can adjust DDR3 2133 at maximum when the external frequency of CPU is the default value of 100MHz.
If adopted with the external frequency of overclocking CPU, Sandy Bridge may reach around DDR 2300.
It is the greatest advantage of Ivy Bridge’s structure, and the Memory Controller is much better than that of last generation.
Given 3770K and 100MHz of CPU’s default external frequency, it can reach around DDR3 2400~2666.
With powerful MB and DDR3, it will possibly reach DDR3 2800.
The above two test figures are the bandwidth performance of DDR3 2400 1T and 2600 2T, showing that the DDR3 frequency is greatly improved.

Intel HD Graphics 4000 performance test
GPU frequency is 23 by default. When overclocking to 30(equal to 1500MHz), 3DMark Vantage => P5755

StreetFighter IV Benchmark
1280 X 720 => 116.13 FPS
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