Originally Posted by Mhill2029

Shows how much you know about the 4870 then doesn't it. It clearly shows 256Bit itself.

Originally Posted by Mhill2029

Possibly down to bad driver implementation at present. I mean memory management for these cards is all over the place. Also Nvidia are still to release their CUDA software, which could turn everything on it's head. Will GT200 be faster than a 9800GX2? That's the question.....in all likelyhood probably not, but it might be more efficient at things and not so complicated to write for.

Originally Posted by Licht

I personally believe the G92 core itself is the issue. Since the 9800GTX has less bandwidth then the 8800GTX and more performance. That rules out in my mind that it is bottlenecked in memory.

Originally Posted by QuickS

Nice photochop, it has been proven that the HD4870 will have a 512bit bus.

Originally Posted by t4ct1c47

The memory bus on a graphics card is regarded sperately from the arcitecture of the GPU's core in the same way that the memory bus on a motherboard is regarded seperately from a CPU. The reason thatnewer cards currently have lower memory bus's than their predecessors is the fact that manufacturers are trying to minimise costs to keep the cards in an affordable price range.



No, the HD4870 current spec denotes that it has a 256-bit memory bus. The dual GPU HD4870X2 is scheduled to use two speerate 256-bit bus's. One for each GPU and it's respective set of memory.

Originally Posted by t4ct1c47

The memory bus on a graphics card is regarded sperately from the arcitecture of the GPU's core in the same way that the memory bus on a motherboard is regarded seperately from a CPU. The reason that newer cards currently have lower memory bus's than their predecessors is the fact that manufacturers are trying to minimise costs to keep the cards in an affordable price range.

Originally Posted by t4ct1c47

The memory bus on a graphics card is regarded sperately from the arcitecture of the GPU's core in the same way that the memory bus on a motherboard is regarded seperately from a CPU. The reason that newer cards currently have lower memory bus's than their predecessors is the fact that manufacturers are trying to minimise costs to keep the cards in an affordable price range.



No, the HD4870 current spec denotes that it has a 256-bit memory bus. The dual GPU HD4870X2 is scheduled to use two seperate 256-bit bus's. One for each GPU and it's respective set of memory.

Originally Posted by QuickS

From what I have read from multiple sources the regular HD4870 will use GDDR5 and have a 512bit bus. Why would they bottleneck their GDDR5 with a 256bit bus? That would make no sense and they would be better off with a 512bit bus and GDDR3.
http://www.fudzilla.com/index.php?op...7289&Itemid=34

Originally Posted by noldevin

It really does seem like some of you just sit and wait for a repost to jump on.

Originally Posted by Ikon

256-bit 4-4.5GHz GDDR5 gives more then enough bandwidth.

Originally Posted by Wrapper

those look like the stats of the 4850... from what has been posted before
from several sources... the 4870 was suppose to have gddr5 memory, with
a 512bit bus... some sources also include that the 4870 will have 1gb of memory.