Which is better.

[[Unknown]]

Just for comparison, an iPad Air also has 1GB of ram, but has a 1.4Ghz cpu (it's not exactly directly comparable by Mhz though.)

Depending on what OS you're running, 1GB of ram may be fine (I wouldn't run Windows 7 / Vista with only 1 GB of ram, even ignoring PPSSPP.)

You might possibly look around for some deal on ram. It's easy to replace in a desktop, and your computer should theoretically take DDR2. If you're not planning to upgrade it soon, some cheap ram is probably a good way to keep your desktop usable a bit longer.

For example, with just two Chrome tabs open, I can end up with ~300 MB used just by Chrome. Pretty crazy really. Most software has drastically increased its memory requirements in the past few years. If you run out of ram, your system will become very slow.

-[Unknown]