On 2011-06-25 17.34, Gene Buckle wrote:
> On Sat, 25 Jun 2011, Vivian Meazza wrote:
>
>> The most _likely_ cause is the ATI Radeon HD 4670/256 MB VRAM. The GeForce
>> 8600M GT is known to be better at handling shaders. 256 Mb VRAM is in both
>> cases a bit small for FG nowadays. There are other possible contributors to
>> a low framerate - AI traffic is one.
>>
> Wow.  That's an incredibly small amount of video RAM for a video card that
> new.  Can you upgrade it to something with more RAM?

Otherworldcomputing.com has two options; ATI Radeon HD 5670/512MB 
(USD180) and ATI Radeon HD 5750/1GB (USD400). 400 is a lot, will the 
cheaper 512MB card make a noticeable difference? And, opening an iMac 
isn't for the faint-hearted.


Jari

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