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<azonenberg>
GenTooMan: ooh only 32 mbits? thats actually doable with a largeish fpga block ram
<azonenberg>
you're well into kintex/virtex territory but it can be done on die
<azonenberg>
alternatively, external QDR but you might have to gang a few to get the b/w
<GenTooMan>
I suppose but eDRAM certain enhances the performance of the thing. as for memory I don't know of any DRAM devices that support QDR thus an expensive option possibly.
<GenTooMan>
RDRAM is basically expensive and difficult to use, it also might require licensing from the idiots who license it just to use it. So likely that leaves just DDR3 devices.
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<azonenberg>
GenTooMan: QDR is SRAM
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<ZirconiumX>
sorear: I think it might be semi-feasible to double-pump an 8-pipeline GPU
<ZirconiumX>
Although running it at 300MHz will be fun
<ZirconiumX>
I'll have to scour ZipCPU's website pretty extensively for advice there :P
<tpw_rules>
netburst™ gpu
<GenTooMan>
azonenberg indeed the issues are QDR 1 expensive 2 power hungry 3 high end FPGAs only 4 they get hot regardless advantage you don't need to have a big FSM for read write and What The Heck as you need with DRAM
<ZirconiumX>
tpw_rules: More pipeline stages! More of them!
<GenTooMan>
pipeline dreams... :D
<ZirconiumX>
Six stages so far, and I need to bolt on texturing units in front
<ZirconiumX>
And the actual renderer at the end of it :P
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<GenTooMan>
It will be interesting to see how you test this design. The big advantage might be that it isn't a PS2 so you can use HDMI for the output.
<ZirconiumX>
GenTooMan: Indeed, though the conversion to something HDMI likes is going to be tricky
<ZipCPU>
What would be the challenge with converting to HDMI? It's just a pixel stream ... (with minor formats)
<ZirconiumX>
The PS2 can output in arbitrary resolutions, and I have to produce that arbitrary clock for the HDMI output