techPowerUp! Forums - View Single Post - AMD High C/P PC Reference - 3x 785G models Unlock Cores and OC to 300Mhz Guide

windwithme · Jan 21, 2010, 03:08 PM

DDR3 is CORSAIR DOMINATOR CMD8GX3M4A1600C8
Due to the interference with Cooler, the test configuration changes to 2GBX2
The spec is DDR3 1600 CL8 8-8-24 1T 1.65V

2GBX2 version is all black and 2GBX4 version is partial blue.
Two versions are different.2GBX2 price is around 130USD.

Using GIGABYTE GA-MA785GPMT-UD2H to test DDR3 performance
DDR3 1600 CL8 8-8-20 1T 1.600V
Sandra Memory Bandwidth - 8981 MB/s
EVEREST Memory Read - 13735 MB/s

DDR3 1600 CL7 7-7-21 1T 1.750V
Sandra Memory Bandwidth - 9415 MB/s
EVEREST Memory Read - 13760 MB/s

You can see DDR3 bandwidth are some different in CL8 and CL7
Besides, AMD CPU built-in memory controller hasn’t improved for years, which are why DRAM bandwidth is still far behind Intel platform.
If you use 790FX chipset, DDR3 bandwidth will be higher 500~1000 MB/s. 790FX can set this memory set in CL6.
More high-end AMD chipset also improves more DDR3 bandwidth.

GIGABYTE GA-MA785GPMT-UD2H Performance
CPU 300 X 12.5 => 3750MHz
DDR3 1600 CL8 8-8-20 1T
VGA 500/1066

Nuclearus Multi Core => 16620
Fritz Chess Benchmark => 18.99/9115

CrystalMark 2004R3 => 191161

CINEBENCH R10
1 CPU=> 4224
x CPU=> 15236

PCMark Vantage => 6833

3DMARK2006 => 1774

OC 750/1600 => 2406

Jan 21, 2010, 03:08 PM	#5
windwithme Join Date: Aug 2009 Posts: 476 (0.35/day) Thanks: 0 Thanked 258 Times in 156 Posts	DDR3 is CORSAIR DOMINATOR CMD8GX3M4A1600C8 Due to the interference with Cooler, the test configuration changes to 2GBX2 The spec is DDR3 1600 CL8 8-8-24 1T 1.65V 2GBX2 version is all black and 2GBX4 version is partial blue. Two versions are different.2GBX2 price is around 130USD. Using GIGABYTE GA-MA785GPMT-UD2H to test DDR3 performance DDR3 1600 CL8 8-8-20 1T 1.600V Sandra Memory Bandwidth - 8981 MB/s EVEREST Memory Read - 13735 MB/s DDR3 1600 CL7 7-7-21 1T 1.750V Sandra Memory Bandwidth - 9415 MB/s EVEREST Memory Read - 13760 MB/s You can see DDR3 bandwidth are some different in CL8 and CL7 Besides, AMD CPU built-in memory controller hasn’t improved for years, which are why DRAM bandwidth is still far behind Intel platform. If you use 790FX chipset, DDR3 bandwidth will be higher 500~1000 MB/s. 790FX can set this memory set in CL6. More high-end AMD chipset also improves more DDR3 bandwidth. GIGABYTE GA-MA785GPMT-UD2H Performance CPU 300 X 12.5 => 3750MHz DDR3 1600 CL8 8-8-20 1T VGA 500/1066 Nuclearus Multi Core => 16620 Fritz Chess Benchmark => 18.99/9115 CrystalMark 2004R3 => 191161 CINEBENCH R10 1 CPU=> 4224 x CPU=> 15236 PCMark Vantage => 6833 3DMARK2006 => 1774 OC 750/1600 => 2406