corsair xms c7 to c8?

[ashagplz]

2 years ago i bought some
Corsair XMS3 4GB (2x2GB) DDR3 12800C7 (1600MHz) 7-8-7-20

now i see the same brand and speed is rated
Corsair XMS3 4GB (2x2GB) DDR3 PC3-12800C9 1600MHz Dual Channel Kit (CMX4GX3M2A1600C9)

1600MHz RAM Speed, CAS 9-9-9-24

from clock 7 to clock 9 at the same speed?

 

[Kaapstad]

Manufacturers sell kits with different timmings that run at the same mhz. Normally the kits with the tighter timmings (lower numbers) are more expensive but perform better.

 

[ashagplz]

which is why its weird the set i bought 2 years ago with the better timmings is no longer made. Looking closer it seems it was 1.65v so i guess thats the difference.

 

[8 Pack]

That XMS 3 kit you bought 2 years ago is undoubtedly PSC IC's which are very high quality IC and clock like hell at tight timings given volts. At 1600mhz CAS 6 will be easy!!!!

Dont buy that POS second kit, The first is far superior!!!!