My quick answer is YES.
Read below for details.
I was curious will RAM impact on Intel HD performances (I have dedicated GPU, but still wanted to know).
From my experience upgrading RAM will improve performances noticeably.
First let me introduce RAM's.
In both cases CPU-Z was reporting that Intel HD 3000 graphic card memory size is 2108MB.
I am also using 2nd gen CPU (Sandy Bridge), and my laptop (Asus N series, so it applies also to all N_5 models - N45/N55/N75) runs RAM at 1600MHz with 1.35V (its not in specifications on Intel's website, but this is running without any sort of overclocking or modding - just put them in sockets).
Windows experience index jumped from 5.9 to 6.9, which is nice, but now about real-world scenarios.
Games that I have tested (with exact same settings) are:
- League of Legends
Those frame rates are with around medium settings mostly (some are set on high) at 1920x1080 resolution (Anti-aliasing is off) with FRAPS recording. Without FRAPS frames are higher.
Unfortunately, I haven't putted FPS in recorded videos, so it is pointless to put it on youtube now.
Additionally, from youtube videos that I checked, I saw that from Single Channel mode to Dual Channel mode Intel graphic cards get about 10% better frame rates.
I know that this is 2 year old questions, but I think it can help to some people in future if they decide for such upgrade.