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Normally... mobile i5s don't come with hyperthreading... that's usually left to the i7s... but... typically Apple are unique, so all of the processors come with it. Like Broken Hope mentioned, the differences between the base i5 and top i7 are so tiny, you would be hard pressed to notice the difference if you had the machines side by side. The difference will show in benchmarks... but even working with large RAW files on two machines side-by-side... the difference will be hard to distinguish.
The 13 has on offer:
2.7 GHz (i5-5257U) dual-core Intel Core i5 Broadwell processor with 3 MB shared L3 cache (13")
Optional 2.9 GHz (i5-5287U) dual-core Intel Core i5 Broadwell with 3 MB shared L3 cache
Optional 3.1 GHz (i7-5557U) dual-core Intel Core i7 Broadwell with 4 MB shared L3 cache
You can go to somewhere like cpuboss.com to compare them... this link is the top i7 vs the base i5 - http://cpuboss.com/cpus/Intel-Core-i7-5557U-vs-Intel-Core-i5-5257U
As you can see, the difference is very small.
The 15" however comes with these options:
2.2 GHz (i7-4770HQ) quad-core Intel Core i7 Haswell with 6 MB on-chip L3 and 128 MB L4 cache (Crystalwell) (15")
Optional 2.5 GHz (i7-4870HQ) with 6 MB on-chip L3 cache and 128 MB L4 cache (Crystalwell)
Optional 2.8 GHz (i7-4980HQ) with 6 MB on-chip L3 cache and 128 MB L4 cache (Crystalwell)
Take the cheapest cpu from both models and compare them here - http://cpuboss.com/cpus/Intel-Core-i7-4770HQ-vs-Intel-Core-i5-5257U
Quite a big jump in performance.
Have a feel of both of them, I think you'll be pleasantly surprised by the 15". The 13 is 1.58kg and the 15 is 2.04kg.
My wife was dead-set on the lightness of the 13, but after I got a 15... she changed her mind. Not trying to push you or anything... just have found the extra screen real estate to be very useful & think you might too... when the weight difference is rather small, but the performance and usability is a reasonable jump.
The price difference isn't massive when you compare as close to like-for-like models as you can.
Take the 13" with 256GB SSD & upgrade it to 16GB RAM... 1359
base 15" comes with those same things + quad core upgrade + bigger screen included for 1599
(unless you know how to get the education discounts
)
The 13 has on offer:
2.7 GHz (i5-5257U) dual-core Intel Core i5 Broadwell processor with 3 MB shared L3 cache (13")
Optional 2.9 GHz (i5-5287U) dual-core Intel Core i5 Broadwell with 3 MB shared L3 cache
Optional 3.1 GHz (i7-5557U) dual-core Intel Core i7 Broadwell with 4 MB shared L3 cache
You can go to somewhere like cpuboss.com to compare them... this link is the top i7 vs the base i5 - http://cpuboss.com/cpus/Intel-Core-i7-5557U-vs-Intel-Core-i5-5257U
As you can see, the difference is very small.
The 15" however comes with these options:
2.2 GHz (i7-4770HQ) quad-core Intel Core i7 Haswell with 6 MB on-chip L3 and 128 MB L4 cache (Crystalwell) (15")
Optional 2.5 GHz (i7-4870HQ) with 6 MB on-chip L3 cache and 128 MB L4 cache (Crystalwell)
Optional 2.8 GHz (i7-4980HQ) with 6 MB on-chip L3 cache and 128 MB L4 cache (Crystalwell)
Take the cheapest cpu from both models and compare them here - http://cpuboss.com/cpus/Intel-Core-i7-4770HQ-vs-Intel-Core-i5-5257U
Quite a big jump in performance.
Have a feel of both of them, I think you'll be pleasantly surprised by the 15". The 13 is 1.58kg and the 15 is 2.04kg.
My wife was dead-set on the lightness of the 13, but after I got a 15... she changed her mind. Not trying to push you or anything... just have found the extra screen real estate to be very useful & think you might too... when the weight difference is rather small, but the performance and usability is a reasonable jump.
The price difference isn't massive when you compare as close to like-for-like models as you can.
Take the 13" with 256GB SSD & upgrade it to 16GB RAM... 1359
base 15" comes with those same things + quad core upgrade + bigger screen included for 1599
(unless you know how to get the education discounts

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