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[mr8382004]

Hello Im planning to upgrade my pc, just want to know what is the minimum processor needed to run sacd.iso smoothly?
Currently just using 5 years old AMD dual core with maybe 2Gb ram and cannt play sacd.iso multi channel.
Planning to buy laptop with Intel i3 or i5, please give suggestion.
Thanks 

[Matt]

It's hard to give exact numbers.

I would expect any current four core Intel CPU to be able to handle 6 channel DSD compressed with DST and downsampled for PCM output.  DST decoding is CPU expensive, but well threaded so more CPU cores help.

If you don't use DST compression, you'll probably be fine with a dual core CPU.

[mr8382004]

Thanks Matt. 
Can increase ram help? If 4 cores are needed, will AMD be fine? Bec. i7 are much expensive.

[kstuart]

I can play multichannel SACD ISOs with a 4 year old AMD dual core and 3.2gb RAM.  I am not sure whether the RAM makes any difference, it is probably just dependent on the processor. So that is only a year or so later than yours.

BTW, I think most multichannel SACDs use compression to fit all those channels on the disk, which is why it is the multichannel SACDs that give people problems.

Also, you should run the benchmark in the Help menu and report the final number here.  It's possible your 5 year old PC is fine, and you have a setting wrong...

[mr8382004]

Thanks kstuart, here's my benchmark result :

Running 'Math' benchmark...
    Single-threaded integer math... 8.569 seconds
    Single-threaded floating point math... 3.534 seconds
    Multi-threaded integer math... 8.617 seconds
    Multi-threaded mixed math... 3.571 seconds
Score: 782

Running 'Image' benchmark...
    Image creation / destruction... 0.334 seconds
    Flood filling... 1.133 seconds
    Direct copying... 2.822 seconds
    Small renders... 3.761 seconds
    Bilinear rendering... 5.032 seconds
    Bicubic rendering... 3.287 seconds
Score: 1344

Running 'Database' benchmark...
    Create database... 0.720 seconds
    Populate database... 3.306 seconds
    Save database... 0.935 seconds
    Reload database... 0.235 seconds
    Search database... 3.026 seconds
    Sort database... 2.153 seconds
    Group database... 1.255 seconds
Score: 1849

JRMark (version 18.0.212): 1325

Hope you can make some comments, thanks again.

[kstuart]

What happens when you try to play multichannel SACD ISOs ?

[mr8382004]

When I played multichannel, the song will stop for buffers almost every 30 seconds.