Ram timings and refresh rate (phenom 2)

[Okenchi]

I'm trying to stave off a major update and I've made some point budget upgrades.

I'm wondering how much difference ram speed and timings really make:

AMD Phenom II 1100T Black

MSI 890FXA-GD70 Motherboard

Corsair CMZ8GX3M2A1600C9B Vengeance Desktop Memory Kit - 8GB (2x 4GB), PC3-12800, DDR3-1600MHz

Gigabyte nvidia 1650 super

Thermaltake TRX-650M TR2 RX 650-Watt Modular

 

I *meant* to buy a 2133mhz set of 4x4gb ram, somehow screwed up and bought 4x4gb of 1600mhz. While the extra 8gb might be nice I'm wondering if I should go after the 2133.

Will I see a benefit of 2133?

Will the 12-12-12 timings most Ram at 2133 seems to have actually be a problem?

I'm seeing that while the board supports 2133 it's effectively OC and I might not be able to use all 4 slots. Since this was a popular board for it's era I'm hoping a few people have hands on experience.

 

I did pop the 4 sticks in just to bench with cinebench 20 and got no difference. I might be splitting hairs at this point since 8 should be enough for most games to run comfortably at 1080/60. Most of the load is the graphics card.

[5x5]

Just use the RAM you have. DDR3 isn't as vital to older CPUs as DDR4 to modern intel and AMD ones. You'll be fine with 1600 CAS 9

[Okenchi]

@5x5 how do you mean "not as vital" out of curiosity? 

[5x5]

1 minute ago, Okenchi said:

@5x5 how do you mean "not as vital" out of curiosity? 

DDR 3 speed didn't really affect performance that much. Maybe 1-2% at most. DDR4 speeds are what really started to matter where the delta can be as wide as 10%

[Okenchi]

Thanks, in that case I may keep my mistaken ram and just focus on saving for a laptop or monitor. I'm not going to dump more money on my desktop until I can go for the mobo+chip+etc swap. 

Wonder if the power supply will hold up or if I'm going to need to swap that too.

[Guest]

2133mhz would be sought after timings of 9-10-9-27-36 @ 1.65v would give plenty of performance increase. 

DDR3 responded well to bandwidth increase. 

At 1600mhz would want cas at at the loosest.

[Guest]

1 minute ago, ShrimpBrime said:

2133mhz would be sought after timings of 9-10-9-27-36 @ 1.65v would give plenty of performance increase. 

DDR3 responded well to bandwidth increase. 

At 1600mhz would want cas at 8 the loosest.