[U505]

Originally Posted by Stublerone

In my opinion, I would say, that your CPU will be an issue and the impact of the card could be insufficient. But I am not aware of the cards that much.

For explaination: You have VRAM on the card and you have normal RAM on your pc mainboard.

In clod, the texture load and other VRAM filling things are quite high. At 1080p resolution it could be somewhere around 2 gb, which you will need. BUT: As soon as the card runs out of its own VRAM, in this case 2gb, it has to load from normal RAM, which as a much slower bus to the graphics card. This causes stutters. Also the cpu load on 2 cores are getting high and you normally need nothing else, but horsepower in GHz to solve that, as the game not sufficiently devide the workload for the cores.

At 1080p, 2gb vram on the card should be recommended, because it needs that amount. The second thing is the speed of the interface between graphics card and vram. I do not know the speeds of these cards, but in the 680 there is a much slower interface, than in the hd7970, which has 384(?) bit interface (i am too lazy currently to look up). So, the nvidia also has a disadvantage there!

Why is it a disadvantage? - clod uses a streaming engine, where content is constantly streamed from your hdd to your RAM and then to your VRAM to serve you with the much changing landscape, while flying through such a massive map with this massive viewing range.

So, every part in this chain can have influences in your performance.

Recommended for new invests:
1.) A new graphics card with min. 2gb, better 3gb or more for the future in gaming (cry engine could scale good and detailed up to an amount of more than 4gb ram usage).

2.) At least native quad core cpu with a high raw power (ghz).

3.) RAM will be ddr3 and should preferrably be also a bit faster. I think 1600 is common and also good enough.

4.) Your storage drive: At least the windows partition and the games should run on a SSD drive. This can create also a performance increase and it is fast in loading ( do not wanna miss this in my pc and I will only buy normal hdd for storage-> depending on pruce, I will also use ssd for data storage)

That are the influences and somewhere here you can find a thread, where you can see, how cpu and gpu behaves and at which border the cpu will bottleneck, because workload on the cores are getting messed up.

very interesting post