RAM upgrade brought WORSE performance. Acer Aspire 5 A515-51G

panos_chr
panos_chr Member Posts: 25 Enthusiast WiFi Icon
Hello,

I have an Acer Aspire 5 A515-51G which had 8GB total RAM (4GB soldered + 4GB in slot). Maximum RAM capacity is 20GB so I recently purchased an 16GB  (after being sure that it fits the criteria and characteristics). Now I have 20GB total running in Flex Mode as far as I'm concerned (CPU Z says dual so that's a sign).
My problem is that before changing the slot I run some tests (UserBenchMark and PassMark PerformanceTest) in order to see the difference of Before-After. 

PassMark PerformanceTest:
I found out that Memory Write has gotten worse (11676 Before - 7487 After) as well as Database Operations (2938 Before - 2249 After).
UserBenchMark:
Before my RAM scored a 62.2% and After 44.3% (with significantly dropped values at Multi core and Single core scores).
Also while runnig the test I saw memory latency getting a higher value than the previous test.

Anyone have a clue why my RAM upgrade brought me worse performance? Is it because it runs 4GB+4GB Dual Channel and the rest 12GB Single Channel? Can I do something to minimize that gap?

I will attach photos of my Before-After results in order to understand better.
Thank you in advance!

Answers