One thing that I can tell you re: MBP’s – with the last gen 15′s there was a huge difference with Ap2 between the 2.4 and 2.5 depending on your file size – not due to the processor but more due to the 256 v. 512 VRAM. Since I already have the 512 VRAM the speed jump with the processors will probably be extremely minor and I have no idea about the new NVIDIA GPU vs the older one. So I will probably keep one last gen and get the 512M VRAM 15 unibody and chalk it up to a pretty apple gear fix rather than something rational – hey my last gear fix was the 2nd gen 32M iPod touch – that was like last freaking summer – I am jones-ing really really bad at this point but I have really really really bad timing when I buy new Apple gear – It’s like one month+one day after I buy there is either a huge price drop or a huge product improvement roll-out. LIke on every freaking one of the cinema displays I have ever ever purchased 23″, 23″ again, 30″ and 30″ again literally the prices were dropped like 35 days after I purchased – it was so ridiculous that a Apple actually refunded me the difference on the last 30″ even though it was past the grace period because I showed them the history of my monitor purchases.

The only big fear I have is that I will not be able to buy just the unibody – I may be compelled to get one of the 24″s just so I can “save money” by not having to buy the display port to dvi adapter (really I hate those dongley things mussing up the look of my rig).

RB

The new unibodies are suh-weet! I won’t be getting one for at least 18 months (work for State of California, 10% pay cut, possibly 15-20% before it’s all over–ouch!). And yes, I’m doing this on my lunch hour, in case anyone is wondering.

I’m wondering, too, if this noticeable of a performance change (not world-rocking, but significant for me) is harbinger of what we can expect with the rumored Aperture 3.0 (perhaps after Snow Leopard is out)?

What MBP are you running? I am running a 2.5 w/512 last generation and saw a small dose of improvement but I am wondering if the biggest improvements are to machines with constrained VRAM. On another note I am seriously considering a new unibody MBP 15 to replace at least one of my 2.5 15′s but am wondering if the I will notice much improvement besides the huge productivity gains through the lack of need for opening the latch.

RB