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Re: Intel Core i5-760, Parity Quad Core CPU Performance and OC Guide
After setting the DDR3 clock, the more important is the detail parameters.
Starting from CL9, then move to CL8 or higher/lower frequency.
Voltage Page
Load-Line Calibration
CPU Vcore 0.50000~1.90000V
QPI/Vtt Voltage 1.050~1.990V
PCH Core 0.950~2.000V
CPU PLL 1.600~2.540V
DRAM Voltage 1.300~2.600V
CPU and DRAM quality is varied; you need to adjust the CPU Vcore and DRAM Voltage.
If you want to pull CPU frequency to 200/2000 ratio, the key item is QPI/Vtt Voltage.
For my experience, when OC to CPU/DRAM 200/2000 performance, QPI/Vtt Voltage is around 1.21~1.25V.
PC Health Status
There are many P55 products, and every brand has different OC capability.
But the set up is similar; you just need to take time for fine tune.
Through the steps, every user all can get better CPU/DRMA performance in air cooling condition.
Comparing DDR3 Performance before and after OC
DDR3 1328.4 CL5 5-5-15 1T
Sandra Memory Bandwidth - 16762 MB/s
EVEREST Memory Read - 15656 MB/s
DDR3 2000 CL8 8-8-24 1T
Sandra Memory Bandwidth - 23670 MB/s
EVEREST Memory Read - 17941 MB/s
DDR3 2060 CL8 8-8-24 1T
Sandra Memory Bandwidth - 24301 MB/s
EVEREST Memory Read - 18395 MB/s
After OC DDR3 1328 to DDR3 2000 performance, EVEREST increases about 15%.
Sandra Memory Bandwidth increases more, it’s about 41%.
OC DDR3 is really improving the system performance. It can be better with OC CPU together.
CPU 200 X 21 => 4199.9MHz
DDR3 2000 CL8 8-8-24 1T
Hyper PI 32M X4 => 9m 52.146s
CPUMARK 99=> 651
Nuclearus Multi Core => 25908
Fritz Chess Benchmark => 25.53/12254
CINEBENCH R11.5
CPU => 5.60 pts
CPU(Single Core) => 1.42 pts
CrystalMark 2004R3 => 318038
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Re: Intel Core i5-760, Parity Quad Core CPU Performance and OC Guide
Intel Core i5-760 user here
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