512 or 1 gig

[russellie]

Hi All
What is the difference in performance between the Sapphire HD 4850 512 and 1 gig???? I am not running HD at present, system is
Gigabyte S Series daul core 6gig mem 500w power supply presently running ati 1600pro. but now decent games require a higher spec,
The Saphire 4850 looks good. would this support latest gaming,
Russ

 

[coozie7]

The HD4850 is not really fast enough to get any real benefit from the larger memory, stick with 512Mb.
In a few weeks ATI will release its new mid-range 57xx cards, these have DX11 support, run cooler and (possibly) quieter than current cards, so it may pay you to wait until they are released and reviewed before making a decision.
That said, a '4850 is going to be a huge step up.

 

[russellie]

Thanks coozie
Will waite for 57. anything else to recomend up tp the £100 mark

 

[coozie7]

This will show you where each card falls relative to the others in performance:

http://www.tomshardware.co.uk/best-graphics-card,review-31635-6.html

All I can suggest is you look for the best deals.
A few sites to look at: Overclockers, Scan, CCL, Misco, Microdirect, Pixmania, E-buyer and Dabs, although there is plenty more.
A final point: The PSU, for most higher-end cards it will need at least one 6-pin
PCI-E connector and 30A on the +12v rail/s and for a HD4870/GTX260 I think 36A is suggested and it will need two 6 pin connectors.