The system has 256 MB RAM, expandable to 2GB.

这个系统内存 256 兆字节，可扩充到 2 千兆字节。

《牛津词典》

Memory: 256 MB RAM; 512 MB recommended for graphics features and certain advanced functionality.1.

内存：256 MB内存；推荐512 MB。

youdao

It basically needs a graphics card and it can even work on 512 MB ram if you have a graphics card.

它基本上需要一个图形卡，它甚至可以工作，512 MB内存如果您有一个图形卡。

youdao

My 350 MHz AMD with 128 MB RAM and ATI Xpert98 ran the game at a decent pace.

CNN: Heroes of Might and Magic III triumphs on Linux

If the average installed base was (just as an example) 486s with 4 MB of RAM, then everyone was assured that Windows version whatever would work on a 486 with 4 MB.

FORBES: Fujitsu PC Sales Sag: The Blame Is On Microsoft's Windows 8

The Lumia 710 boasts a 1.4 GHz processor, 5-megapixel camera, 512 MB of RAM, and 8 GB of internal storage.

FORBES: Will Walmart's Free Nokia Lumia 710 Offer Help Give Windows Phone A Boost?