How about temps?
Starting off with GeekBench 3.
2.3 Ghz Haswell rMBP =>
Single-Core = 3077
Multi-Core = 11566
2.3 Ghz Ivy Bridge rMBP
Single-Core = 2824
Multi-Core = 10707
Haswell is (1 - 2824/3077) * 100 => 8.22 % faster single core
and
Haswell (1 - 10707/11566) * 100 => 7.43 % faster multi-core
So basically your new shiny 2.3 Ghz Haswell rMBP is less than 9% faster cpu wise than the 1+ year old 2.3 Ghz Ivy Bridge base rMBP.
I picked one up today, and it seems to have more battery life then advertised. I usually see it estimate about 7-8 hours on my old retina 15", this new 15" retina is estimating 10 hours right now.
Underwhelming update in terms of CPU performance.
Remember, the 2.3Ghz Haswell/CrystallWell is replacing the 2.7Ghz Ivy Bridge in terms of price point.
In that case, there is no performance improvement at all.
I picked one up today, and it seems to have more battery life then advertised. I usually see it estimate about 7-8 hours on my old retina 15", this new 15" retina is estimating 10 hours right now.
your rmbp is base or high end??
Interesting. What kind of workload are you running when seeing this kind of battery life? I've been seeing numbers that would put my system at around 5-7 hours of life while running my current "new system" workload. Definitely heavier than just a couple of safari tabs. Sometimes very heavy with Lightroom and virtualization work. Still, even at it's lightest I can't see 8 hours.
coconutBattery tells me:
Capacity: 8778
Power Usage is running around 14-16w with what I would think is a light workload
Going to review this when I get home ASAP.
I will be posting.
I will be comparing
Late 2013 2.3 Ghz 15 rMBP Haswell (Crystal Well), 16 GB, Intel HD 5200, Nvidia 750M
with
Late 2012 2.3 Ghz 15 rMBP Ivy Bridge, 8GB, Intel HD 4000, Nvidia 650 M
Some buyers advice.
If you game and don't want to spend 2600$ get the early 2013 refurbished for 1600$. Thats a 1000$ price difference. For this kind of money you can get a gaming PC. The performance difference between 650M and 750M are minor because the 750M is just a rebranded 650M with higher clocks (Same Chip only 1Gb extra Vram which you won't notice). In windows you can easily overclock your 650M near or over the 750M lvl. If you consider buying the new one base 1999$ you will loose massive gaming performance because the Iris Pro really sucks in gaming and you can't overclock it !!