How is this G-card better than this G-card

[wrenaudrey]

I dont get how graphics card are better than each other, obviously talking about the current range.
Like a GTX 560Ti compared to GTX570, i have always been told that its not about the size of the memory but more importantly, the GPU clock speed.

The 560 has~ 850Mhz
(http://www.ebuyer.com/254405-asus-gtx-560ti-directcu-ii-1gb-gddr5-dual-dvi-mini-hdmi-pci-e-engtx560-ti-dcii-2di-1gd5)

While the 570 has ~800Mhz
(http://www.ebuyer.com/279277-gigabyte-gtx-570-oc-windforce3x-1280mb-gddr5-dvi-hdmi-displayport-pci-e-graphics-gv-n570oc-13i-v2-0)

Sure their memory size is not thesame, only around a quarter of a gig. Theres the shader and CUDA cores too but surely these dont make the biggest difference :S

Any one care to explain to make it clear for me?
Thanks in advanced

(PS. How do i put a link so it goes blue so you can just click on it without needing to copy it out to the address bar? thanks)

 

[FunSurfer]

Actually the number of CUDA cores is very important if not the most important thing to the performance of the graphic card. That is how a ~730MHz GTX 570 with 480 cores beats a ~850MHz GTX 560 with 336 cores.

 

[holykalo]

The number of CUDA cores is almost always the defining point in powerful cards. Rarely
will you see a card with less cores outstripping one with a higher amount of cores. Take this for example, here are 2 cards.

http://www.tigerdirect.ca/applications/SearchTools/item-details.asp?EdpNo=1613290&CatId=3669

http://www.tigerdirect.ca/applications/SearchTools/item-details.asp?EdpNo=7191409&CatId=3585

notice the difference? the first card has 448 cores, while the second card has 384. The 560ti 448 core surpasses the performance of the 560ti 384 by 10-20% in many cases. In fact the 560ti 448 is just a toned down 570 (32 less cores) but it still fails to match the 570, even with a difference of only 32 cores. Normally when looking at graphics cards, look first at the number of Cuda cores, the higher the cores, the better overall performance

Edit: http://www.tigerdirect.ca/applications/SearchTools/item-details.asp?EdpNo=852271&CatId=3669 look at the speed on this thing, its at 800mhz, yet it does not come close to the performance of the 560 as it has a pathetic 48 cores.

 

[holykalo]

(PS. How do i put a link so it goes blue so you can just click on it without needing to copy it out to the address bar? thanks)

I think it might be because you put brackets directly around it

 

[dish_moose]

Think of a tub being filled up with a cup of water at 10/min. Now invite over 4 of your friends - you chat a little so each one only does 8/min. Do the math....
-Bruce

 

[margag_]

Use this tool to compare.

http://www.tomshardware.com/reviews/gaming-graphics-card-review,3107-7.html