Hello, sorry if this question is a bit silly but if u guys can help me i will be happy. Ok here is my question; I bought my 2017 Imac 4.2 ghz 512 ssd with 8 gb ram and i thought i can upgrade as the most other users think. When i bought it i geekbench it with 8gb ram. My scores are :Single Core : 5574 Multi Score is: 18511, Gpu is 118167. Today i bought 8 gb more ram and installed , i geekbenched again and i got lower results like Single score is :5474 Multi Score is: 17274, Gpu score is 117505. I know the difference can be minor but after upgrading this decrease got me suprsise. I saw other geekbench with same specs more higher than my machine and esp when i got my ram higher decrease?. I would be happy if u guys share ur thoughts with me. I have 3 days for returning it back. Thank you for the help in advance.