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FORUMS General Gear Talk Computers
Thread started 29 Dec 2017 (Friday) 13:18
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Surface Book 2 for replacing a desktop?

 
TheNewLegend
Member
Joined Sep 2011
Dec 29, 2017 13:18 |  #1

Hi,
Im thinking of buying a surface book 2 with i7-8650u cpu and 16gb of ram for replacing my i7-5820k desktop.
The main uase is lightroom and photoshop cs.
Do you think that the surface book 2 is capable enough for replacing my desktop?
Maybe should I buy the new dell xps13 and save some money? I prefer the surface design and the gtx1050 and pen are good advantage though.


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davesrose
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Atlanta, GA
Dec 29, 2017 13:31 |  #2

For speed comparisons, the Surface Book 2 with i7-8650u isn't going to be a replacement for a i7-5820k desktop. The newest laptop 8th gen i7 processors are designed with low clock speeds to improve battery life: the i7-8650u is 4 core 1.9GHZ. While the i7-5820k is older, it's a desktop processor with 6 cores and a much higher clock speed: 3.3GHZ (as being a desktop, there isn't as much of a concern with electricity draw). Here are benchmark comparisons:

Intel Core i7-5820K (external link)

Intel Core i7-8650U (external link)

So, don't look for a 13" laptop for directly being a replacement to a desktop (in both speed and upgradability): get one if you're looking for portability. And get the best spec'd one for your intended application.


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TheNewLegend
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Dec 29, 2017 13:38 as a reply to davesrose's post |  #3

I know that it is not a replacement or an upgrade over the 5820k, but I think its good enough for my usage.
The baseclock is 1.9ghz but it can go much higher than that - up to 4.2ghz with turbo


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davesrose
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Dec 29, 2017 13:41 as a reply to TheNewLegend's post |  #4

But laptop brands will throttle down turbo-boost to improve battery life/prevent over-heating of CPU in cramped laptop spaces. Turbo-boost is something that is variable dependent on application usage and CPU temperature.


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drmaxx
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Joined Jul 2010
Dec 29, 2017 14:48 |  #5

I got the first surface book version (i7-6600U) with 2 cores and probably about half the speed of the new one. LR 6.14 is a pain to work with. It is doable - but by no means pleasant as every action is delayed and you do wait for rendering a lot. Twice the speed combined with a good ssd should certainly make it more palatable.


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rantercsr
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Dec 29, 2017 15:14 |  #6

I just got a sb2 for Xmas .. installed LR and PS but havemt tried it yet as i just havemt had much time since .but
I'll give it a try tonight and see
Although the one I got only has 8mb ram, but i7 , and a 1050 graphics

We shall see..i don't expect it to be as good as my desktop , but Hope fully its not painfully slow


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-dave-m-
Senior Member
Joined Sep 2011
Edmonton, Alberta, Canada
Dec 29, 2017 23:27 |  #7

drmaxx wrote in post #18528934 (external link)
I got the first surface book version (i7-6600U) with 2 cores and probably about half the speed of the new one. LR 6.14 is a pain to work with. It is doable - but by no means pleasant as every action is delayed and you do wait for rendering a lot. Twice the speed combined with a good ssd should certainly make it more palatable.

Four cores vs two cores does not equal twice the speed when it comes to photo editing. Photo editing relies mainly on single core performance, rendering multiple cores meaningless. Clock speed will make processing faster, along with generational improvements(as long as they are not instruction sets that Adobe has yet to code for). My guess is more along the lines of 25% faster or less when it comes to cpu bound processing in Lr.


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mike_d
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Dec 29, 2017 23:55 |  #8

The CPU monitor on my computer shows all 4 cores peg the needle when I render previews or export. The same goes for video rendering.

CPU benchmark:

i7-5820k = 13001
i7-6600U = 4820

I would cry if I had to give up that much CPU power.




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-dave-m-
Senior Member
Joined Sep 2011
Edmonton, Alberta, Canada
Dec 30, 2017 17:16 |  #9

My comparison was more aimed at i7-8650u vs i7-6600u in different generations of Surface Book as mentioned by drmaxx.

6600u scores 1817 single 4820 multi
8650u scores 2332 single 9335 multi

In multi threaded tasks the 8650u is theoretically 95% faster, in per core performance the difference is closer to 33%. Benchmarks almost always utilize the newest instruction sets cpu's have built in, retail software does not. The real world performance gains will be significantly lower.


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tim
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Joined Nov 2004
Wellington, New Zealand
Jan 01, 2018 14:17 |  #10

Single thread performance is 20% better than my old 2600K that I use every day. Should be ok unless you have really high MP camera - I find much over 20MP and it slows down a bit much for me.


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