Intel Ivy Bridge Structure with Core i5-3450 Performance and OC Share
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September 5, 2012, 08:57 AM
Join Date: Jul 2009
Itís 5 phases PWM design, 3 for CPU, 1 for GPU and 1 for MCH. Upper left is 4Pin power in connector.
1 X PS2 KB/Mouse
1 X D-Sub / DVI-D / HDMI
4 X USB 2.0(Black)
2 X USB 3.0/2.0(Blue)
1 X RJ-45 LAN
3 X Audio jacks
Intel Core i5-3450 default clock is 3.1GHz. I enable Turbo Boost 2.0 to boost the single core to work at 3.5GHz. 4C4T full speed can reach 3.3GHz.
If using same brand H77, the max CPU Clock Ratio is 35.
When using Z77, the max CPU Clock Ratio up to 37. Thatís why I am using Z77 here.
CPU ratio adjusts to 37, disable C1E and EIST, power saving features. You can set CPU clock at 3.7GHz.
CPU: Intel Core i5-3450
MB: GIGABYTE Z77M-D3H
DRAM: CORSAIR CMZ16GX3M2A1866C10R
VGA: Intel HD Graphics 4000
HD: CORSAIR Performance Pro 256GB SSD
POWER: CORSAIR AX650W
Cooler: Intel Original Cooler
OS: Windows7 Ultimate 64bit
The comparison is between default and OC mode.
The 1st picture is default.
CPU 100.1 X 31 => 3100MHz
Enable C1E and Turbo Boost, the clock will floating between 1600 to 3500MHz by CPU utilization rate.
DDR3 1334.8 CL7 8-7-21 1T
The 2nd picture is after OC.
CPU 100.1 X 37 => 3703.79MHz
DDR3 1868.6 CL10 11-11-30 2T, enable XMP mode.
Hyper PI 32M X4 => 10m 59.772s
CPUMARK 99 => 550
Hyper PI 32M X4 => 9m 39.354s
CPUMARK 99 => 585
CPUMARK 99 only test single core, so the performance of 3.5GHz and 3.7GHz are similar.
Nuclearus Multi Core => 19550
Fritz Chess Benchmark => 20.39/9787
Nuclearus Multi Core => 22682
Fritz Chess Benchmark => 22.93/11005
Fritz Chess Benchmark only test CPU multi-tasking 4C4T computing capability. The performance increase around 12.5%.
CrystalMark 2004R3 => 259729
My System Specs
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