if oni for gaming purpose with ur budget, u dun nid that i7-5820k

this one for around 5K build OC

intel i7-4790K RM1329 (u will get OC-able CPU)
Asrock Z97 Killer RM569
Zotac GTX970 Reference 4GB GDDR5 - RM1300
2x Corsair Value RAM 8GB DDR3 1600MHz - RM458
WD 1TB HDD - RM 199
Liteon 900S 256GB - RM429
Seasonic S12II Evo 620W 80+ Bronze Fully Modular - RM319
Thermaltake versa H25 RM135
CM Hyper 212X RM159

RM4897

if for non OC (u will get better GPU)

Intel Xeon 1231 V3 RM979
Asus B85M-G RM313
Leadtek GTX980 RM2179
2xCorsair Value RAM 8GB DDR3 1600MHz - RM458
WD 1TB HDD - RM 199
Liteon 900S 256GB - RM429
Seasonic S12II Evo 620W 80+ Bronze Fully Modular - RM319
Thermaltake versa H25 RM135

RM5011

but if u insist on the i7-5820k build

Intel Core i7 5820K RM1500
MSI X99S SLI Plus RM975
Zotac GTX970 Ref RM1300
Corsair Value RAM 8GB DDR4 2133MHz RM264 x2 = 16GB RM528
WD 1TB HDD - RM 199
Liteon 900S 256GB RM429
Seasonic S12II Evo 620W 80+ Bronze Fully Modular - RM319
Thermaltake versa H25 RM135
CM Hyper 212X RM159

RM5544

imo,
it the i7-5820k build wouldnt b much diffrent with the i7-4790k build in term of gaming performance,
myb just 1-5% dffrent on CERTAIN games,
on future proofing also will not make much significant diffrent,
unless if u have 6.5k budget, then it will b another case

aih?? r u building ur own pc?
have asked recomendation on any thread?

ur pc shud handle current gaming gud,
just nid to adjust the setting to get smooth gameplay,
upgrade to GTX970 gonna b a huge boost,

Why not? Though it will downclock to run at 1333MHz, and do note that HyperX runs at 1600/1866 MHz.