System Memory Bandwidth Performance
System Memory Bandwidth Performance
As explained - Intel has a couple of certified partners for memory to get some sweet XMP (Extreme Memory Profiles) 2.0 profiles going. We test memory both at the default JEDEC 2133 MHz for DDR4 and then with XMP 2.0 enabled at 3200 MHz.
Default 2133 MHz - Boring?
What you will notice are pretty far out dual-channel read and write numbers. You are basically hovering towards the 56 GB/sec range. Things however will get more crazy quickly, behold the coolness below:
Ballistix (Crucial) sent out the Elite DDR4 series memory kit rated at 3200 MHz. That, my friends, is configured by enabling XMP in the BIOS, and that's it. All of a sudden, the bandwidth numbers will change dramatically:
Above - Default clock frequency on CPU / CL16 3200 MHz on DDR4 / Quad Channel
Hello 68~71 GB/sec ranges! So if you like to go a little more crazy in bandwidth, purchase some nice compatible faster XMP ready memory and enable that XMP profile in the BIOS. Faster memory is relative though, your overall PC experience will not be much faster, yet memory intensive applications like, say, transcoding or a CPU limited game - that's where you will see little gains. Let's chart it up:
We tested the memory as highlighted in the charts. Now with the regular memory at 2133 MHz versus AIDA memory tests we see good performance hovering at the 90K marker, and with a 3200 MHz kit, you are reaching 69 GB/s.
Memory Write Test
We obviously did the same with the memory write tests. The Write performance jumps to 57k at 2133 MHz and ~71K at 3200 MHz. DDR4 kits set up in quad-channel gents, enable XMP in the BIOS and you are good to go.
