Multitasking Performance

Website: MPC-HC
Website: 7Zip

To run multiple applications well you need a powerful (ideally multi-core) CPU and plenty of RAM. Our multitasking test performs a massive file backup (with encryption) using 7Zip, while simultaneously playing back a HD movie file using Media Player Classic, making it a seriously demanding test for any PC.



We see a nice performance elevation for the CPU memory core frequency, although it does seem to tail off between 2.93-3.2GHz, unlike the several second improvements seen above it.

The memory performance elevation is a notable 25 seconds, and it scales linearly with frequency and timing optimisations which is nice to see. In a Core i7 system with its eight threads, this is an important result because it's designed for heavy multi-threading and multi-tasking - while up to this point our benchmarks have been run singley (even if they are multi-threaded), doing multiple things at once is more in line with the work people do.

1T versus 2T does little to benefit here, but 1,333MHz C8 to C6 for example can shave a solid ten seconds, or eight percent off the result. Likewise, going from a low latency 1,333MHz C7 to 1,600MHz C9 also sees a seven percent increase in performance.