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Should i get Nvidia gtx 660ti? People told me 192bit Memory Interface is not good enought..

post #1 of 9
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Ive been waiting for this card for a long time. Could someone explain what issues can Memory Interface 192bit cause?
appreciate it
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post #2 of 9
Less memory bandwidth which will reduce performance at higher resolutions and higher AA settings. It's still good enough for 1080p though.

Personally though, I'd rather spend some more and get a 670 depending on the price difference. You will need that kind of power if you want that 120 Hz kept well-fed wink.gif
I'm not that impressed with the 660Ti, to me it feels more gimped in comparison to the 670 than the 670 was to the 680 ...

EDIT:
Oh yeah, this might be good to know as well: http://www.anandtech.com/show/6159/the-geforce-gtx-660-ti-review/2
It doesn't matter all that much in the actual benchmarks so I guess nVidia does have some magic thing going on tongue.gif
Edited by Bloitz - 8/20/12 at 7:36am
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post #3 of 9
What games do you play at what resolution?
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post #4 of 9
192bit memory interface will be fine for 1920 x 1080p monitor. The Vram & memory interface really comes into play on higher resolution (2560 x 1600 or Multiple monitors ) with high textures. Gpu memory can processor the textures very quickly just can't deliver is fast enough.

Just imagine 192 lanes highway vs 512 lane highway.
    
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post #5 of 9
Quote:
Originally Posted by Bloitz View Post

Less memory bandwidth which will reduce performance at higher resolutions and higher AA settings. It's still good enough for 1080p though.
Personally though, I'd rather spend some more and get a 670 depending on the price difference. You will need that kind of power if you want that 120 Hz kept well-fed wink.gif
I'm not that impressed with the 660Ti, to me it feels more gimped in comparison to the 670 than the 670 was to the 680 ...
EDIT:
Oh yeah, this might be good to know as well: http://www.anandtech.com/show/6159/the-geforce-gtx-660-ti-review/2
It doesn't matter all that much in the actual benchmarks so I guess nVidia does have some magic thing going on tongue.gif

Pretty much this. The 660 Ti is not bad for 1080p and it really comes down to the price difference between it and the GTX 670. I would take a reference GTX 670 over a tricked out GTX 660 Ti any day.
    
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post #6 of 9
People get way too hung up on bus-width without taking anything else into consideration.

A GTX 660Ti has the same basic ratio of fill rate to memory bandwidth as a 670 or 680 does.
Quote:
Originally Posted by Bloitz View Post

I'm not that impressed with the 660Ti, to me it feels more gimped in comparison to the 670 than the 670 was to the 680 ...

In some ways it is, but NVIDIA had no choice since they don't have any parts between GK104 and GK107, and GK107 is a huge step down.
Quote:
Originally Posted by Bloitz View Post

It doesn't matter all that much in the actual benchmarks so I guess nVidia does have some magic thing going on tongue.gif

It's not magic, it's the aforementioned ratios being the same. They didn't reduce clock speeds at all, they just knocked off a memory channel and ROP cluster. 25% less ROPs and 25% less memory bandwidth. Same texture and shader capacity.

Worst case scenario, 25% less performance. Best case scenario, 0% less performance. Most tests will fall in the middle or closer to 0, at the resolutions people are likely to get a 660 for.

Card is well positioned.
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post #7 of 9
Quote:
Originally Posted by mickmania View Post

192bit memory interface will be fine for 1920 x 1080p monitor. The Vram & memory interface really comes into play on higher resolution (2560 x 1600 or Multiple monitors ) with high textures. Gpu memory can processor the textures very quickly just can't deliver is fast enough.
Just imagine 192 lanes highway vs 512 lane highway.

Just a heads up...

GTX 660 Ti has 192bit/32 = 6 lanes
Each 64 bits get 1 memory controller with 2 lanes each 32 bit.

GTX 670 has 8 lanes each 32 bit.

It's more like 6 lanes vs 8 lanes freeway. thumb.gif
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post #8 of 9
I'd get a 670 over a 660ti. In case that already exist today you can't even turn on AA without taking a MASSIVE hit in performance. The games of tomorrow are going to make this obsolete rather quickly compared to the 670 or 7950. Want better performance and more staying power than the 660ti for slightly more? Get the 7950
post #9 of 9
I think it really depends on your budget. If you can afford a 670, get a 670. If you want to save $80-100 get a 660ti. If you're gaming at 1080p you probably aren't going to notice a significant difference between a 660ti, 670, 7870, and 7950. Probably 10 FPS at most. The 192 memory bus is going to become an issue when you start turning up AA and AF settings but you can mitigate this by OCing the memory clock.

People say that 2 GB with a 192 bus isn't enough for hi-res textures but I've been running Skyrim with several hi-res texture packs (Bethesda, Skyrim HD, Realistic Skyrim Overhaul) with ENB post-processing, 4x AA and 8x AF, and RARELY does the FPS drop below 50 (and it's always at 60 indoors) which is fine for me. Max memory usage is also only 1651 MB which I'm pleased about too. Granted, the 660ti might start to show it's limitations in a year or two but for now I think the differences between the cards listed above are really negligible at 1080p.
Edited by ned99 - 8/20/12 at 8:23pm
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