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which mobile gpu?

post #1 of 11
Thread Starter 
I can save about 200 bucks if i get the 680m, but with a i7 3610qm processor rather than an i7 4800mq. Would it be better to go with the latest processor (4800mq) but with gpu that is slight slower (870m) or would the 680m and 3610qm suffice?

I realized i posted this same question in the wrong forum before, so if an admin sees this look under "nvidia" and please delete it. Its labeled 680m vs 870m.
post #2 of 11
The 870m isn't slower, more like equal.

http://www.notebookcheck.net/NVIDIA-GeForce-GTX-680M.72679.0.html

http://www.notebookcheck.net/NVIDIA-GeForce-GTX-870M.107792.0.html


I'm not sure if I'd take the $200 savings or not, ...though probably not. Are they the same otherwise?
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post #3 of 11
The 870M is faster than the 680M. Saving $200 though is significant and I don't think going for the 870M is worth the premium.

Go for the 680M and just overclock. It's fast enough to handle whatever you want. tongue.gif
     
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post #4 of 11
Plus the Ivy Bridge Mobile cpus turbo better.
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post #5 of 11
Quote:
Originally Posted by jakethesnake438 View Post

Plus the Ivy Bridge Mobile cpus turbo better.

No, actually the haswell has it beat by a fair margin. The Haswell chip pushes up to 3.7GHz and the Ivy only goes up to I think 3.3Ghz?

It depends on what you want here. It's not THAT big of a performance difference to warrant the extra $200, but it depends on what laptop you're looking at too...

Sounds too much like either an older Clevo or an MSI machine, in which case the newer stuff might be more viable to go for if you want a more long-term investment option.
     
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post #6 of 11
Quote:
Originally Posted by Imglidinhere View Post

No, actually the haswell has it beat by a fair margin. The Haswell chip pushes up to 3.7GHz and the Ivy only goes up to I think 3.3Ghz?

It depends on what you want here. It's not THAT big of a performance difference to warrant the extra $200, but it depends on what laptop you're looking at too...

I've come around to the idea that the CPU may actually be more important at this point.

Graphics are plateauing and a 750Ti can more or less match the consoles, but there is no reason for CPU use to plateau as well. In fact, it feels like a situation where the CPU is going to be given more work. The ability to draw more objects on the screen means larger environments, more physics and more [better too, hopefully] AI. Even my 4+ year old laptop with its underclocked desktop HD 5770 is mostly just starved of CPU power, ...my GPU is all jelly over imglidinghere's i7-2760QM. The important number when comparing the 3610qm and 4800qm isn't the top turbo speed, it's that the the 3610 uses all four cores through 3.1GHz and the 4800 uses all four cores through 3.5GHz.
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post #7 of 11
Quote:
Originally Posted by thegreatsquare View Post

I've come around to the idea that the CPU may actually be more important at this point.

Graphics are plateauing and a 750Ti can more or less match the consoles, but there is no reason for CPU use to plateau as well. In fact, it feels like a situation where the CPU is going to be given more work. The ability to draw more objects on the screen means larger environments, more physics and more [better too, hopefully] AI. Even my 4+ year old laptop with its underclocked desktop HD 5770 is mostly just starved of CPU power, ...my GPU is all jelly over imglidinghere's i7-2760QM. The important number when comparing the 3610qm and 4800qm isn't the top turbo speed, it's that the the 3610 uses all four cores through 3.1GHz and the 4800 uses all four cores through 3.5GHz.

Well... most games never make use of the full power of this CPU. While powerful, most games I see only use two cores at best, with maybe one using the full thing? I've yet to play a game that fully stresses the CPU in this PC. Furthermore, the 5870M is about as fast as the 560M I have, so the gaming difference between the two machines wouldn't be that noticed in something like Left 4 Dead 2 or whatever, but it would be seen in Gmod since the Core i architecture for the first gen laptops is literally only based on the Core 2 chips from before, only with hyperthreading. The second gen Core i are based on Sandy, which gives a real performance boost. Raw power alone makes this CPU literally twice as fast as the old 920XM I had back when in the old M17x R2 I had.


But in the case of this argument, the difference between the Haswell and Ivy chips, with their respective GPUs so close anyways, would be minimal at best. I say just stick with the 680M machine and overclock.


HOWEVER, that being said, the 860M is only 10% slower, and yet... draws half the power and can be had in NEW laptops for around your price range. The Maxwell 860M is VERY potent in games and easily nips at the heels of the 680M on a regular basis. smile.gif
     
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post #8 of 11
Quote:
Originally Posted by Imglidinhere View Post

Well... most games never make use of the full power of this CPU. While powerful, most games I see only use two cores at best, with maybe one using the full thing? I've yet to play a game that fully stresses the CPU in this PC. Furthermore, the 5870M is about as fast as the 560M I have, so the gaming difference between the two machines wouldn't be that noticed in something like Left 4 Dead 2 or whatever, but it would be seen in Gmod since the Core i architecture for the first gen laptops is literally only based on the Core 2 chips from before, only with hyperthreading. The second gen Core i are based on Sandy, which gives a real performance boost. Raw power alone makes this CPU literally twice as fast as the old 920XM I had back when in the old M17x R2 I had.

I have a lot of difficulty believing that my CPU difficulties isn't 90% a matter of my clock speeds in comparisons to your's. My base clock - 1.6GHz, your's - 2.4GHz. My top clock speed using all 4 cores - 1.6GHz, your's - 3.3GHz. I'd OC mine, but I don't want to mess with it and have nothing, ...rather just play my 150+ Steam backlog and save for the next one. I can hold off until war never changes again if need be.

...but enough about me.

In the end the extra $200 would get TC a marginally better GPU in the 870m [Let's keep the 860m out of this. It is a nice card, but let's not take any performance off the table.] and the oomph of all 4 cores through 3.5GHz. Also, I'm going to throw in the improved hyperthreading Haswell had over IB that was more effective in gaming as shown off in this Haswell dual core review with generally better FPS/frame times above and beyond the general 5% difference between these generations overall.
Quote:
If you are building a system that is primarily for gaming, the Core i3 4340 will allow whatever video card you use to run at its full potential – there is no need to step up to a Core i5 or Core i7 CPU. The same could not be said for Ivy Bridge Core i3′s, or any AMD APU or CPU we have tested. Newer games seem to be even worse off, as Assassin’s Creed IV would only run at 60 FPS steadily with a Radeon R9 280X when either the Haswell Core i3 or Core i5 were used.

If it was my extra $200, I'd spend it in this case.



...TC never gave a budget/links.
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post #9 of 11
Quote:
Originally Posted by Imglidinhere View Post

No, actually the haswell has it beat by a fair margin. The Haswell chip pushes up to 3.7GHz and the Ivy only goes up to I think 3.3Ghz?

It depends on what you want here. It's not THAT big of a performance difference to warrant the extra $200, but it depends on what laptop you're looking at too...

Sounds too much like either an older Clevo or an MSI machine, in which case the newer stuff might be more viable to go for if you want a more long-term investment option.

Check this out, the main reason I'm holding off a ZBook 15

http://forum.techinferno.com/throttlestop-realtemp-discussion/6958-haswell-step-backwards-ivy-bridge-i-have-some-shocking-tdp-results.html
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post #10 of 11
I had the 920xm in my R2 running at 3.8ghz, I can with complete conviction that the 2760qm I have now feels faster on every regard and it IS faster in every regard.

Your issue is based around both a low clock speed issue compounded by the fact that you're using a tweaked Core 2 Quad with added HT. It's well known that the first gen Core i7 chips weren't actually based on the nehalem i7s. The i5s were based on westmere but they didn't actually implement a different flagship processor architecture until sandy came out.
     
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