Originally Posted by matt9669
Sony is using XDR in the PS3 - they've been using RAMBUS since the PS2, so that relationship has been around. Last update MS was using a shared (G?)DDR3 bucket for their memory. I'll post some linkage if requested.
I'd be surprised if AMD's DDR2 solution wasn't very good, if not excellent - look at the bandwidth numbers they're currently producing on DDR1. Also look at the performance between single channel and dual channel, in most cases S754 doesn't fall far behind S939 - point is, bandwidth isn't everything. I think AMD made the right move here, DDR2 production is only truly ramping up just now, and they publicly stated they didn't believe they'd see gains until DDR2-667, which makes sense from both a cost and latency perspective. Remember, DDR2 has inherently higher latencies than DDR1.
As for XDR on ATI/NVIDIA, don't be too hasty on that - a lot of people still have a sour taste from RAMBUS' litigious dealings, and that includes corporate types. GDDR4 is expected to scale to 1.4GHz/2.8GHzDDR, so there's no immediate need for XDR in the graphics arena.