Users can have more applications open without crashing or slowdown. (High RAM)
Applications that use lots of data will perform better on this device. (High RAM and cache)
Can handle double the tasks concurrently compared to Device B; it is great at tackling multiple tasks at the same time.
Disadvantages
Although, the device can handle more tasks concurrently, tasks will be handled slower compared to Device B. (Low Ghz speed)
Device B
Advantages
Computer can handle tasks faster compared to device A; is great at tackling the task at hand quickly.
Disadvantages
User cannot keep a lot of applications running due to lack of RAM. Additionally, the computer can be very slow when RAM is low on space even with a fast CPU.
Applications that process a lot of data will be significantly slower compared to Device A (Low RAM and cache).
Applications may crash due to lack of memory.
Additional clarification about the cores:
Let's say these computers are peeling bananas.
Device A can peel 4 bananas simultaneously but peels each banana 2x slower than Device B.
Device B can peel bananas 2x faster than Device A, but can only peel 2 bananas simultaneously.
