User:TechAngel85/Sandbox: Difference between revisions
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Each GPU in a system must have its own dedicated VRAM that is not shareable, additionally in order for GPU's to work together they need to have access to exactly the same resources. What this means is that for multi-gpu configurations (whether it is several different cards or multiple chips on a single card) all VRAM memory must be mirrored, so if you add up your total VRAM and divide by the number of GPU's you get your '''functional''' dedicated VRAM. All the extra VRAM for each additional GPU makes absolutely no performance difference whatsoever, it is entirely utilized to make the GPU's able to work together seamlessly. So lets say you have 3 HD 7970s in CrossFireFX, what you would expect is that your games will now have 9GB of VRAM available to them, in reality you are still limited to 3GB and the other 6GB is utilized entirely to make the other GPU's compatible. | Each GPU in a system must have its own dedicated VRAM that is not shareable, additionally in order for GPU's to work together they need to have access to exactly the same resources. What this means is that for multi-gpu configurations (whether it is several different cards or multiple chips on a single card) all VRAM memory must be mirrored, so if you add up your total VRAM and divide by the number of GPU's you get your '''functional''' dedicated VRAM. All the extra VRAM for each additional GPU makes absolutely no performance difference whatsoever, it is entirely utilized to make the GPU's able to work together seamlessly. So lets say you have 3 HD 7970s in CrossFireFX, what you would expect is that your games will now have 9GB of VRAM available to them, in reality you are still limited to 3GB and the other 6GB is utilized entirely to make the other GPU's compatible. | ||
== | == Video Cards == | ||
The video cards listed below are grouped by screen resolution. The reason for this grouping is due to how different cards perform at different resolutions. Video card performance degrades as screen resolutions raise; thus, it is very important you choose a card at the screen resolution which you desire to use. The lower resolutions cards will '''''not''''' perform well at the higher levels! If you plan on using higher resolutions in the future, you will need to choose a higher resolution card now or upgrade in the future. | The video cards listed below are grouped by screen resolution. The reason for this grouping is due to how different cards perform at different resolutions. Video card performance degrades as screen resolutions raise; thus, it is very important you choose a card at the screen resolution which you desire to use. The lower resolutions cards will '''''not''''' perform well at the higher levels! If you plan on using higher resolutions in the future, you will need to choose a higher resolution card now or upgrade in the future. |