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Dual Xeon E5-2620 v3 vs i7 5820/30/60k for Vray CPU rendering

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I desperatly need to buy a new workstation as soon as possible.


My upmost and first concern is Vray CPU based rendering speed so I figure that a setup with dual Xeon E5-2620v3 (what I can buy for my budget) would beat the heck over a i7 5820k in rendering times.

Is this true? Or i am totally wrong?


This new workstation would be mainly for renderings in Vray, because i have a laptop which i'm using to work on AutoCAD and 3Ds Max. My laptop is an Asus G75.

The specs:

Intel Core i7-3630QM 2.4GHz Intel Turbo rated @ 3.4Ghz

32GB DDR3 1600MHz

SSD 256GB SATA 6Gb/s + 750GB SATA 7200rpm

GeForce GTX670MX 3GB GDDR5 @ 1920x1080 (I tried Vray RT with Cuda and it sucked in speed or quality)


For the purpose of best bang for the buck in Vray CPU rendering performance solely I made two totally different configurations:



1# Dual Xeon config


Asus Z10PE-D8 WS


2x Intel Xeon E5-2620 V3 2.4GHz Intel Turbo 3.2 Ghz 15MB L3 (6c/12t) (24 threads in total)


2x Cooler Master Hyper103 for CPU cooling


Kingston HyperX Savage DDR3-2133MHz 8GB (x2)

(I think that might be a problem here regarding memory bandwith)


SSD Kingston SSDNow V300 240GB - SATA III (6Gb/s) - 450MB/s (SATA III) Write/Read


PNY Quadro K620 2GB GDDR3 PCI-e

(If a Geforce would offer me a better performance in 3dsmax viewport/AutoCAD with the same budget I would definately go for that, but still in doubt)


Corsair Builder CX500W PSU



2# Single i7 config




Intel i7 5820k 3.3 Ghz Intel Turbo rated @ 3.6 Ghz 15MB L3 (6c/12threads) (would a faster i7 5930k or even a i7 5960k(8c/16t) be faster in CPU rendering than my Xeon config?)


G.Skill Kit 16GB DDR4 3000Mhz Ripjaws 4 Red


Cooler Master Hyper103 for CPU cooling (maybe here i would go for liquid cooling instead)


SSD Kingston SSDNow V300 240GB - SATA III (6Gb/s) - 450MB/s (SATA III) Write/Read


PNY Quadro K620 2GB GDDR3 PCI-e or PNY nVidia Quadro K2200 4GB DDR5 (if there is a difference in performance)


Corsair Builder CX500W PSU



I don't think that, for now, i would go for Vray RT, because I need noise free high quality renderings in 1080p or 720p still images. Also i don't make any kind of animation renderings in Vray or video editing of any sort.

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