Hey shion.
A really useful tool you can use in the future is
CanYouRunIt? It gives a pretty decent gauge of whether your PC will be able to handle a certain game.
Also, a bit more info would be helpful. Open the Run window (Hold the Windows key + R) and type "dxdiag". This will give you a screen with some tabs. The initial tab gand the "Display" tab would be useful.
Looking at it, a bit more RAM wouldn't hurt. Sims 4 needs a 2GB minimum, which you're just scraping. If you can, throw in an extra GB or two. Depending on what type you use, they can be reasonably cheap.
In terms of graphics, by the looks of it, even a decent onboard chipset could manage it. If you've got any kind of graphics card, I doubt you'll have any issues there.
For others, these are the minimum requirements:
- OS: Windows XP (SP3), Windows Vista (SP2), Windows 7 (SP1), Windows 8, or Windows 8.1
- Processor: 1.8 GHz Intel Core 2 Duo, AMD Athlon 64 Dual-Core 4000 or equivalent (For computers using built-in graphics chipsets, the game requires 2.0 GHz Intel Core 2 Duo, 2.0 GHz AMD Turion 64 X2 TL-62 or equivalent)
- Memory: At least 2 GB RAM
- Hard Drive: At least 9 GB of free space with at least 1 GB additional space for custom content and saved games
- DVD-ROM: DVD ROM drive required for installation only
- Video Card: 128 MB of Video RAM and support for Pixel Shader 3.0. Supported Video Cards: NVIDIA GeForce 6600 or better, ATI Radeon X1300 or better, Intel GMA X4500 or better
- Sound Card: DirectX 9.0c Compatible
- DIRECTX: DirectX 9.0c compatible
- Input: Keyboard and Mouse