Swapping from ATX to mITX requires a mITX mobo too, your i7 950 is quite an aged platform so getting a new LGA1366 mobo to pair with the CPU is almost impossible now, you need to hunt for used mobo if you were to stay with the i7 950.

GTX460 x 2 means SLI right? If yes then you need to remove one of them because mITX mobo doesn't support SLI since it only comes with 1 PCIe slot.

Using DDR3 (not DDR3L) will damage the Skylake memory controller in the long run so just get a new 8GB DDR4 instead, it is very cheap nowadays anyway.

Intel Core i5 6500 - RM 845
MSI B150M Pro-DH (D4) - RM 346
Corsair 8GB DDR4 2133MHz Value RAM - RM 128
Sapphire R9 380 4GB GDDR5 Nitro - RM 955
Kingston SSDNow UV400 120GB SSD - RM 153
Seasonic M12II EVO 620W - RM 363
Tecware Alpha - RM 189

Total: RM 2979 (ETech price inclusive of GST)

If you aren't in a rush to build the rig, you can consider waiting for AMD RX 480 to reach Malaysia in the next couple of weeks.

CPU is still good enough to power latest games, it is not worth to upgrade to Skylake from Ivy Bridge, performance bump isn't huge, upgrade the GPU and get another 8GB of RAM if needed.

2.5k can get GTX1070 already

10th of June as announced by Nvidia.

Local stock availability remains unknown, but I think there will be a limited amount of stock available on the first day just like what happened on GTX1080 two weeks ago.

Motherboard doesn't create bottleneck, if you go for lower end/cheaper motherboard, you get lesser on-board features, that's all.

All the basic components that are needed to run a PC (including gaming PC) are all available even on the lowest end motherboard (CPU socket, at least 2 RAM slots, at least 1 PCIe 3.0 x16 slot, SATA, USB ports).

If you go for higher end model, you get extra features such as overclocking support, multi-GPU configuration support, M.2/PCIe SSD support, RAID support etc. If you don't use all these features, there isn't a need to pay extra money to get the specific expensive motherboard, it is just a waste.

Yes, based on the specs sheet given, it is estimated to be faster than R9 390X (which is already faster than GTX980 in terms of raw performance).

Since budget is unmentioned/not fixed, so I will just for highest possible non-OC'able rig setup.

Intel Core i7 6700 - RM 1305
Gigabyte H170N-WiFi - RM 516
Corsair 8GB DDR4 2133MHz Value RAM - RM 128
Corsair Carbide 380T - RM 644

Total: RM 2593 (ETech price inclusive of GST)

PSU, SSD, HDD can be reuse.

If you are waiting for AMD VEGA 10 then you gonna need to wait for another few more months (Q4 2016), by the time VEGA comes out, Intel Kaby Lake (7th gen) should have been released as well.

Is the cost of RX 480 included in the budget or separated?

Intel Core i5 6500 - RM 835
Gigabyte B150M-D3H (D4) - RM 439
GSKill Aegis 8GB DDR4 2133MHz Value RAM - RM 169
Samsung 750 EVO 120GB SSD - RM 229
WD Blue 1TB HDD - RM 219
Superflower Leadex Silver 550W - RM 339
Bitfenix Nova - RM 149
BenQ GW2470H - RM 599

Total: RM 2978 (Idealtech price inclusive of GST)

A similar question that I need to ask everyone here recently - are you in a rush to build the PC? If not then please wait for AMD RX480 which is scheduled to be here in next couple of weeks (end of Jun/July) instead.

Alright, since you mentioned you are ok with low/mid settings, so I would recommend you to use the Skylake iGPU to play games first for the time being until new AMD card gets released here.

Skylake i3/i5/i7 iGPU (HD 530) is equivalent to GT740/R7 250 in terms of performance.

Intel Core i5 6500 - RM 845
MSI B150M Pro-DH (D4) - RM 346
Corsair 8GB DDR4 2133MHz Value RAM - RM 128
WD Blue 1TB HDD - RM 215
Seasonic M12II EVO 620W - RM 363
Tecware Alpha - RM 189
BenQ GW2470H - RM 536

Total: RM 2622 (ETech price inclusive of GST)

Left around 1k for GPU and Windows 10 key.

RX480 is price at $199 and after applied conversion rate (RM 4.1) + GST + distributor mark up, I estimate the price will be around RM 900 - RM 1000.

There are some people reported that ETech is installing Windows 10 for free for those who buy rig from them, I am not entirely sure on this, you can contact them yourself to learn more.

Yes & yes, you can buy other brand but price might not be the same, usually RAM comes with lifetime warranty

Hmm isn't this has been answered before?

And I saw you opened another thread asking for same question too

Your budget cannot fit GTX1070 and GTX1080 (they are over 2k) but probably can fit AMD RX480 ($199) which is scheduled to be released later this month.

Are you rushing to build the rig or can wait for AMD RX480?

If cannot wait then you gonna settle with current gen hardware which will be obsoleted soon when new GPU arrives in Malaysia, just FYI so you don't regret later.

Intel Core i5 6500 - RM 845
Asus H110M-K - RM 273
Corsair 8GB DDR4 2133MHz Value RAM - RM 128
Zotac GTX750Ti 2GB GDDR5 Single Fan - RM 480
FSP Hexa+ 450W - RM 166
Armageddon T1x - RM 85

Total: RM 1975 (ETech price inclusive of GST)

HDD not included since you gonna reuse your current one.

Not recommended to get obsoleted parts even they have a massive price drop, but you know this is Malaysia, price drop rarely happens TBH, only got price increase

AMD RX 480 is estimated to be faster than R9 390X/GTX980 by judging at the spec sheet given by AMD, proper official review and benchmark to be available soon once the embargo is lifted.

More RAM is always better when you do a lot of rendering/editing and multitasking, but you need to perform some top up from your current budget to get another 8GB.

What you put in the "personal preferences" is your current rig specs? Or the planned rig specs?

Your budget can fit the upcoming AMD RX 480, so it is the same question again, can you wait for few more weeks before building the rig?

If yes then wait for RX 480, if cannot then you gonna settle with current gen hardware (soon to be obsoleted).

With $199 price tag, after applied conversion rate (RM 4.1) + GST 6% + distributor mark up, I think it will be at most 1k.

If > 1k, then really

No bottleneck bro, it's a 4th gen i7 rig