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Why is it not possible to use GDDR5 as regular RAM? - Page 2

post #11 of 14
Quote:
Originally Posted by Fulvin View Post

GDDR5 is optimized for max data bandwidth, but it is not stable enough to be used as RAM. VRAM error and you might get a weird pixel, where as if the same happened to RAM you'd bsod / crash. Not that i'd be expert on the subject, but it was featured on Linus livestream

GDDR is just as stable as normal DDR.

There are professional GPGPU / HPC cards, as well as coprocessors, that use GDDR memory for mission critical tasks.

Also, you can stress test consumer GPU memory and demonstrate it's comparable relative stability.
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post #12 of 14
Thread Starter 
OK thanks guys for the answers. I know that the memory cobtroller is in the CPU, not sure why I wrote chipset. Rep+
post #13 of 14
Thread Starter 
Urgh double post sorry. Stupid iPod.
post #14 of 14
You have to remember that DDR3 was $100 per GB only a couple of years ago, my first GPU card had 320MB of DDR5 and twice as much cost a lot more....

1. It WAS too expensive.
2. They didn't need the speed.
3. They couldn't afford to jump two generations of memory technology for no reason.

All IMHO

dunx

P.S. Found on the net....

November 4, 2009 at 12:29 am

Wish I were finding this to be true. DDR3 is rising…fast. I am a small custom PC builder and it is quickly becoming a worry in my builds. I have read that this is perhaps due to the release of Windows 7, and that as excitement wanes, so might the prices.

One high end DDR3 model I had been using has risen from around $170 to $245 for 6Gb DDR3 1600 in the last 60 days. Another model I was using that had retailed for around $110, is now costing between $160-170 wholesale for 6Gb DDR3 1600.
Edited by 2002dunx - 1/7/13 at 3:33pm
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