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which graphic card on new iMacs

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Craig Alan
which graphic card on new iMacs
on Nov 26, 2015 at 6:05:04 am

is AMD Radeon R9 M395X with 4GB video memory worth the upgrade compared to AMD Radeon R9 M395 with 4GB video memory or the AMD Radeon R9 M390

Mac Pro, macbook pro, Imacs (i7); Canon 5D Mark III/70D, Panasonic AG-HPX170/AG-HPX250P, Canon HV40, Sony Z7U/VX2000/PD170; FCP 6 certified; FCP X write professionally for a variety of media; teach video production in L.A.


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Joe Marler
Re: which graphic card on new iMacs
on Nov 26, 2015 at 12:44:17 pm
Last Edited By Joe Marler on Nov 26, 2015 at 12:59:25 pm

Below are some GPU benchmarks I ran in cooperation with another 2015 iMac 27 owner having a M395. Note some of his numbers are way off -- I don't really trust those, so I would discard those extreme variations. He ran out of time to pursue further testing.

In general the M395X is maybe 10-15% faster than the M395. You can pretty much never have too much GPU performance so IMO it's worthwhile.

https://joema.smugmug.com/Computers/IMac27-M395X-vs-M395-Tests/n-VS3FhM/i-c...


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Craig Alan
Re: which graphic card on new iMacs
on Nov 27, 2015 at 6:43:58 pm

Does FCP X use this extra speed? Does resolve? I've had graphic cards in the past that improved some apps' performance and were meaningless with others.

Mac Pro, macbook pro, Imacs (i7); Canon 5D Mark III/70D, Panasonic AG-HPX170/AG-HPX250P, Canon HV40, Sony Z7U/VX2000/PD170; FCP 6 certified; FCP X write professionally for a variety of media; teach video production in L.A.


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John Rofrano
Re: which graphic card on new iMacs
on Nov 28, 2015 at 4:19:19 pm

Both FCP X and Resolve use OpenCL which AMD GPUs are very good at. I'm with Joe, you can never have too much GPU performance, and considering that you cannot upgrade the graphics card later, it's worthwhile investment now. If it were me, I'd go for the AMD Radeon R9 M395X.

~jr

http://www.johnrofrano.com
http://www.vasst.com



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