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DDR4 will come down to your choice of CPU and motherboard. Core i7-8700K meanwhile doubles again to 128GB, helped in large part by the availability of higher capacity DIMMs.īut ultimately, the question of DDR3 vs. The Core i7-4770K officially lists 32GB as the maximum supported RAM, while i7-6700K doubles that to 64GB. It's possible to get larger DDR3 memory modules, but many won't work in standard desktop motherboards. There are potentially other differences as well.
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DDR3 was slightly faster about half the time, and typically only a few percentage points separated the two memory types. The difference between DDR3-2133 and DDR4-2133 was negligible in a number of applications, ranging from Handbrake video conversion to half a dozen different games. How does this translate to real-world performance? As Anandtech found in some comprehensive benchmarks comparing DDR3 and DDR4, neither was a clear performance leader.
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