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GDDR5 256bit memory vs GDDR3 448bit memory

M

Maxspeed996

Senior member
Is there that much more performance in Gddr5 memory that it can still use a 256 bit memory interface? I just bought a new card gtx 260 core 216 448bit 896mb card...and I'm seeing these cards that offer the Gddr5 memory. am I gonna notice the difference?
 
Looking at a specific spec to decide on a card is kind of dumb imo. Look at what the whole package produces
 
Originally posted by: Maxspeed996
Is there that much more performance in Gddr5 memory that it can still use a 256 bit memory interface?
Click to expand...
Yes, all things being equal, GDDR5 will deliver roughly twice the bandwidth of GDDR3. That being said, GDDR3 with a faster interface will offer the same performance as GDDR5 (ie GDDR3 + 512bit vs. GDDR5 + 256bit will offer roughly the same memory bandwidth)

I just bought a new card gtx 260 core 216 448bit 896mb card...and I'm seeing these cards that offer the Gddr5 memory. am I gonna notice the difference?
Click to expand...
No, you won't notice a difference. GDDR3 + 448bit is still a massive amount of bandwidth and is plenty for the GTX 260.
 
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