FrankPooleFloating wrote:i7 5820k is a mere $140 more, and worth every penny. I love my GA-X99-SOC.
grimm wrote:Thanks guys, I understand, no GPU this time around.It does mean I can get a nice new case though.
The 8520k is very interesting, it has 28 lanes so it would support 3 8x plus 1 4x right? That processor with 32 gigs of memory plus motherboard would be right around $850. That is still very good, and I will keep my two GPUs and move the hard drives and SSDs over to the new system.
i7-5820k vs. i7-4820K Or Ten Differences Between The Two*/
(1) Launch Date
Q3'14 (newer) vs. Q3'13
(2) Intel® Smart Cache
15 MB vs. 10 MB
(3) Recommended Customer Price
BOX : $396.00 vs. $332.00
TRAY: $389.00 vs. $323.00
(4) # of Cores
6 vs. 4
(5) # of Threads
12 vs. 8
(6) Processor Base Frequency
3.3 GHz vs. 3.7 GHz
(7) Max Turbo Frequency
3.6 GHz vs. 3.9 GHz
(8) TDP
140W vs. 130W
(9) Memory Types
DDR4 1333/1600/2133 vs. DDR3 1333/1600/1866 (there’s faster memory for both, but the i7-5820k will hold the advantage simply because of its recentness)
(10) Max Memory Bandwidth
68 GB/s vs. 59.7 GB/s
(11) Max # of PCI Express Lanes
28 vs. 40
Comments: Regarding applications running on the CPU, if they’re more highly multithreaded, the i7-5820k may be faster than the i7-4820K despite the i7-4820K's higher clock speed because of the i7-5820k's two extra cores and thus its two extra threads also and even in lower threaded apps, the larger cache and using faster memory with the i7-5820k may help to further mitigate the lower clock speeds. The i7-4820K’s higher Max # of PCI Express Lanes advantage with regards to the speed of the getting the data supporting the render to the GPUs may not appear until the GPU count reaches 4 or higher, and that GPU count is dependent on IO space constraints that depend on bios, OS and other considerations discussed more fully in this thread - viewtopic.php?f=40&t=43597#p212504 . In any event, however, we're not talking about any annoying waiting times in either event, unless as itou3's thread points out one is using the current Out-of-core textures feature in a low lane configuration (or on a low lane connection device) [ viewtopic.php?f=25&t=45279&start=100 ]. So it's best to get the highest memory GPUs and a motherboard with the largest number of x16 and x8 slots PCI slots that you can afford (and this also re-emphasizes keeping abreast of the supported PCIe lane count of both the motherboard {download motherboard manuals as PDFs and read them to help comparison shop before purchasing} and the CPU {compare them using http://ark.intel.com ). Once the data is, however, in the GPU, then the GPU's specs matter most.
*/ (a) Specs for the i7-5820k are listed first.
(b) bolding denotes better or perceived advantage (at least to/for some).
