Check RAM speed issues by comparing performance with expected benchmarks and observing system behavior under load.
Check RAM speed issues by comparing performance with expected benchmarks and observing system behavior under load.
Hello everyone, I own a DDR3-1866 motherboard with an i5-6600 processor. I suspect the RAM speed might be limiting my CPU performance and the board is behaving strangely, so I need to replace it soon. Could there be a way to check if the RAM speed is actually causing the CPU to lag? My RAM is already at 16GB. If I swap in a new motherboard, I could either stick with DDR3 or switch to DDR4 for better speed (worth the cost).
Checking the ram speed can significantly impact your performance. If you're fully constrained by ram bandwidth, reducing it further will likely cause a proportional drop in speed. Observing minimal improvement suggests you're still limited by ram capacity. Adjusting settings or removing a module might help restore performance without exhausting your available memory.
You need a different motherboard and processor since DDR4 isn't backward compatible.
Well, it doesn't appear to be true. Besides operating at 1866MHz—which I found unsupported and consuming CPU resources—I notice little difference between 1333MHz and 1600MHz. Ratings: 1333MHz (cb) – 1414, 1412, 981; 1600MHz (cb) – 1407, 991; 1866MHz (cb) – 1429, 1425, 991. Runs: 1–5 with corresponding values. Mean 1414, Median 1418, IQR 20, Range spans 39 to 1429. Thanks for the assistance!
I used several tools to evaluate performance. Cinebench (versions R15 and R20) shows only minor sensitivity to RAM speed, which is useful for competitive testing. At 1866 MB, the impact is small but noticeable. It’s worth noting how performance shifts with different RAM configurations.
I used Cinebench R20, are you looking for alternatives? I’m open to exploring other options. You’ll also be testing single-channel soon. Regarding the drop at 1866, it seems my CPU only handles 1333 and 1600 cycles, so at 1866 it likely skipped half of them—possibly limiting performance to around 933MHz.