MilanoChris said:
Intel will kick AMD into the water by the look of this.
unfortunately for intel, these chips are a fairly weak upgrade, they are max 5% faster clock for clock over a kentsfield unless sse4 comes into play, which other than a few encoding apps i doubt we'll see it being massively useful. though maybe it will be. a uk hardware site had penryns on preview, they were final silicon though. they were pretty much 25% faster, but were testing one with a 20% clock increase and fsb up from 1066 to 1333 which accounts for around 20-22% of the boost in numbers.
phenom looks like its going to be a beast, quite a lot faster than kentsfield/penryn clock for clock, the only issue will be final clock speeds which are being massively underestimated i reckon.
people are guessing at desktop chip speeds based on the recentish showing at a computer trade show with a 1.8Ghz only server part. thing is, opterons before they came out were only months before being shown at trade shows as 1.4Ghz parts which news websites are seemingly forgetting about. server parts are appearing to be coming out only at around the 2Ghz mark but its being hinted that server parts will be out at 2.5Ghz around xmas anyway. desktop parts i would say will launch a little faster anyway. the info that seems to be doing the rounds is that a 2.5Ghz quad core amd(i have no idea, its is phenom, agena, barcelona) would be quite a bit faster than a 3Ghz kentsfield, which puts it faster than the penryn in anything but sse4 apps. but again, i have no clue if sse4 is gonna be in agena/phenom/barcelona or not.
if you want check out anandtech's barcelona preview article, it goes over most of the changes in architechture, and to a point, every good part and inteligent part that made conroe so good pretty much went into barcelona, on top of an already very strong chip. part of what makes conroe so good is efficiency not really raw power. its using the power it has missing as few clocks as possible from mispredictions and having to wait for other things to be done first.
the only real downfall for amd is production capabilities. because of deals with dell meaning they need to get them a decent number of chips, shutting down a fab to get a new process and new chip going, and having time to really really tweak the process and get great speeds is very hard with very limited production capabilities. Intel on the other hand can move to a new process with ease without really hurting production of current chips. they can throw more money and more time, more people at getting new processes working which works in their benefit massively. thats why i think we'll initially see slightly lower than wanted chip speeds at launch, but a pretty big jump in speeds in only a few months. but production clocks, and what they can hit overclocked are such hugely different things. if they clock well , we'll love them, if they can't penryn will be the choice for clockers.