Upgrade, budget 3-3.5K

打BFH, 覺得有D 力不從心, 想問下大家意見 :

如果有3-3.5K budget, 我係應該換粒勁D既U 定勁D既DISPLAY?

而家用緊
INTEL G3258
GTX650 GREEN
Asus Vanguard B85
8GB RAM
SSD


我想換: (OUT BUDGET )
我想換:
Intel Xeon 4 Cores 8 Threads E3-1230V3 Haswell 3.3GHz (8M Cache,LGA 1150,22nm) BOX 盒裝        HK$ 1975
+
GIGABYTE技嘉 GV-N960G1 GAMING-4GD GTX960 4GB GDDR5 顯示卡        HK$ 2050

any suggention?