computer graphics cards
What will 2 graphics cards do to my computer?
So far I have a gigabyte nvidia 9400gt and it has 1gb of sddr2 memory with it. What will another standard video card do that is just normal pci such as an evga geforce 7200 with 256 mb of sddr2. Would both of them in my pc make a difference in games and if so how much of a difference will it be?
In order to provide optimal performanxe, SLI technology requires the NVIDIA GPUs to match. For example, a GeForce 7800 GTX must be paired with another GeForce 7800 GTX. Likewise, a GeForce 9400 GT must be paired with another GeForce 9400 GT. However, using the latest Release 80 or later graphics drivers, NVIDIA GPUs sold by different manufacturers can be used together in an SLI configuration. For example, a GeForce 7800 GT from vendor ABC can be matched with a GeForce 7800 GT from vendor XYZ.
You can mix and match graphics cards with different sizes of memory. While it is not recommended, NVIDIA does offer this flexibility using Coolbits. When purchasing a second graphics card, you should try to match the memory size so that you are ensured full value and performance from your purchase. For example, if your first card is a GeForce 9400 GT with 1GB of memory, you should purchase a second GeForce 9400 GT with 1GB of memory. However, using Coolbits (value set to 18), you can force both of the cards to use the lower of the two memory sizes and operate together in SLI mode. When dissimilar memory sizes are enabled to work together using Coolbits, the effective memory size for each card becomes the smaller of the two memory sizes. Instructions to enable this feature can be found here
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