Massive action game / MAG

The CELL is better than a standard cpu in certain number crunching tasks, as folding@home has proven. Would a multiplayer game server be something the CELL is better at do you think? Or is it general internet bandwidth which you think will hold back the 256 mutliplayer claim?


The cell in it's current form is nothing special but processing power is clearly not the issue here. Ram limitations are the issue and a memory management system that would make this possible on 256mb will be all over the news.
 
So whats the biggest multiplayer game like this which has been succesfullt pulled off so far then?

I seem to remember playing 32 player battles on BF2/BF2142 - didn't they also have 64 player maps? Sure I played some games on those too without much in the way of lag!

Maybe if they made it so that only people with really fast connection speeds can access the bigger maps etc?

With regards to the 256MB ram issue, I'm sure I read ages ago that the PS3 does have a way to share both sets of RAM between the CPU and GPU but it requires some clever programming - could be wrong though... just throwing it out there!
 
That maybe the 360, 360 has a total of 512Mb that is shareable between CPU & GPU, as opposed to 256Mb split like the PS3.
 
With regards to the 256MB ram issue, I'm sure I read ages ago that the PS3 does have a way to share both sets of RAM between the CPU and GPU but it requires some clever programming - could be wrong though... just throwing it out there!

The technique absolutely cripples performance as the latency and bandwidth for CPU-VRAM access is very poor.

Connection speed is only really an issue for certain nations (like us) with overall poor upload speeds. The US and Japan should have far fewer issues.
 
That maybe the 360, 360 has a total of 512Mb that is shareable between CPU & GPU, as opposed to 256Mb split like the PS3.

No it was definately the PS3. I read (can't remember where but it was when loads of technical reviews were coming out not long after launch) that it had 256MB system RAM and 256MB for GPU but ikt was possible with clever coding to for the CPU & GPU to tap into each others if need be. Wish I could remember where I read that now but it was bleeding ages ago and I haven't read it anywhere else so maybe it's bullshine!!!
 
Joe, the 360 has 512MB of shared RAM that can be freely allocated to CPU/GPU as desired. The PS3 has a discreet separation of RAM with 256MB for CPU and 256MB for GPU with slow access granted to either set of RAM by the CPU via piggy backing on certain data buses.
 
The technique absolutely cripples performance as the latency and bandwidth for CPU-VRAM access is very poor.

Connection speed is only really an issue for certain nations (like us) with overall poor upload speeds. The US and Japan should have far fewer issues.

isn't the CPU and main system memory 3.2GHz but the gfx memory (think it's DDR3) only 700MHz? If so then what your saying makes sense. Would the fact that the main RAM, being XDR Rambus memory, is a lot faster than the usual 700MHz play a factor in decreasing it's limitations size wise?

What kind of upload speeds would we need then? Maybe BT's new plans of digging up all the streets and laying fibre optic cables will help???
 
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Nothing to do with the speed of the memory. Indirectly accessing memory through non dedicated data buses means that the time sharing and bandwidth of those buses has to be shared with the devices for which the buses were originally intended for, thus crippling the access to GPU memory.

If everyone bar the host had 1.5-2mb upload then I can't see there being any issues.

Currently in Bristol you can get 22/2.5 down/up broadband but it's the few people with 1mb broadband with 128k upload that cause issues.
 
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isn't the CPU and main system memory 3.2GHz but the gfx memory (think it's DDR3) only 700MHz? If so then what your saying makes sense. Would the fact that the main RAM is a lot faster than the usual 700MHz play a factor in decreasing it's limitations size wise?

What kind of upload speeds would we need then? Maybe BT's new plans of digging up all the streets and laying fibre optic cables will help???

Thats not true on PS3, all the RAM runs at insanely high speed, system ram and graphics ram is the same.
 
PS3 RAM frequency is high but nothing out of the ordinary and has a lot smaller influence on performance than you might imagine.

Latency is the major issue with this RAM technique.
 
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PS3 RAM frequency is high but nothing out of the ordinary and has a lot smaller influence on performance than you might imagine.

Latency is the major issue with this RAM technique.

I thought most RAM these days was 700MHz, with the high end stuff being 1/1.5GHz - isn't the PS3 RAM using XDR Rambus Memory and running at 3.2GHz???
 
Yeah it does use the latest RAM with high speeds (over twice the 360's effective frequency iirc) but real world performance benefits are dwarfed by other factors.
 
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