Hmmm, sounds slow to me?
Well, I hope that's not the case but it does fit in with my own speculations from past ATI observations. Not withstanding the fact the 420s architecture could be much more efficient than NV40 I had hoped ATI where going to use the additional Mhz to push themselves further infront of Nvidia on speed and if all my Christmas's came at once IQ too. Unfortunately I think it looks like a 475mhz speed for the Pro won't be that much faster than the NV40 Non ultra (assuming Nvidia can also push the NV40 with 12 pipes a little higher than 400Mhz)
It also doesn't bode well for the supposedly 600Mhz XT version. I don't think ATI will have a 125Mhz increase along with 4 pipes. 100 Mhz perhaps but even then it's hard to imagine! It's simply too big a drop for an almost identical core. Why have the Pro 125Mhz lower than it could achieve and use 4 less pipes? I know HS etc come into play a little with cost but not to that extent that you'd allow your competitor to have similiar performance. From that I'd guess the XT may hit 500Mhz and at an absolute push 550Mhz. I don't have any proof of this of course but having seen just how conservative ATI are with clock speeds and power consumptions I don't see the trend changing anytime soon
Decisions have obviosuly been made and where as Nvidia said, what the hell, twin Molex, high power PSU I believe ATI will opt for more conservative power requirements and sacrifice the extra Mhz/performance. It helps a little in marketing I suppose and OEMs may feel more secure about it in a system but for the prestige of performance leader I think the more aggressive approach will win.
In a nutshell,
1) I think ATI will now be very evenly matched in performance compared with Nvidia.
2) ATI will still retain a now very slight IQ advantage.
3) ATI will loose in the features department.
4) ATI will be ahead in the low power consumption department.
5) Overall most sites will hand this round to the NV40 family due to it's features and comparable performance/IQ!
All in all, both companies will be so evenly matched neither will be able to declare all out victory.
*Sighs, why oh why won't ATI unleash a genuine monster!