Hey, new here.. 
Basically, I'm getting more into PC gaming (Such as GMOD) yet it's very slow when I try to play.
Watching videos online at 1080p is the video choppy, sound is perfectly fine.
Have a good connection to Internet and the package we're on should be able to play it back smoothly so I'm guessing it's a hardware issue.
I need to know what PC components it is I need to upgrade, and what I need to upgrade them to..
Here are my specs, I'm not sure if this helps ? I do apologize if it doesn't.
Cheers guys!


Processor AMD Athlon(tm) II X2 250 Processor
Manufacturer AMD
Speed 3.0 GHz
Number of Cores 2
CPU ID 178BFBFF00100F63
Family 10
Model 06
Stepping 3
Revision
Video Card ATI Radeon 3000 Graphics
Manufacturer ATI
Chipset ATI Radeon 3000 Graphics
Dedicated Memory 256 MB
Total Memory 2.4 GB
Pixel Shader Version 4.0
Vertex Shader Version 4.0
Hardware T & L Yes
Vendor ID 1002
Device ID 9616
Plug and Play ID VEN_1002&DEV_9616&SUBSYS_2AA9103C&REV_00
Driver Version 8.733.0.0
Memory 4.8 GB
Operating System Microsoft Windows 7 Professional Edition Service Pack 1 (build 7601), 64-bit
Service Pack 1
Size 64 Bit
Edition Professional
Version 6.1.7601
Locale 0809
BIOS BIOS Date: 09/07/10 09:17:09 Ver: 6.10
Version American Megatrends Inc. 6.10
Manufacturer American Megatrends Inc.
Date 08/16/32
Display Maximum Resolution 1360 x 768
Sound Device 1 Realtek High Definition Audio
Driver Version 6.0.1.6196
Sound Device 2 ManyCam Virtual Microphone
Driver Version
Sound Device 3 ManyCam Virtual Webcam
Driver Version
DVD hp DVD A DH16ABLH SATA CdRom Device
CD hp DVD A DH16ABLH SATA CdRom Device
Drive 1
Size 775.3 GB
Free 702.2 GB
Drive 2
Size 156.2 GB
Free 50.0 GB
Browsers
Internet Explorer 11.0.9600.17843
Chrome 43.0.2357.130
Firefox 39.0
Safari
Software
Java 8.0.310
Flash 17.0.0.188
DirectX 11.0
.NET 3.5.30729.5420
QuickTime
Adobe PDF Reader 11.0.10.32

Basically, I'm getting more into PC gaming (Such as GMOD) yet it's very slow when I try to play.
Watching videos online at 1080p is the video choppy, sound is perfectly fine.
Have a good connection to Internet and the package we're on should be able to play it back smoothly so I'm guessing it's a hardware issue.
I need to know what PC components it is I need to upgrade, and what I need to upgrade them to..
Here are my specs, I'm not sure if this helps ? I do apologize if it doesn't.
Cheers guys!



Processor AMD Athlon(tm) II X2 250 Processor
Manufacturer AMD
Speed 3.0 GHz
Number of Cores 2
CPU ID 178BFBFF00100F63
Family 10
Model 06
Stepping 3
Revision
Video Card ATI Radeon 3000 Graphics
Manufacturer ATI
Chipset ATI Radeon 3000 Graphics
Dedicated Memory 256 MB
Total Memory 2.4 GB
Pixel Shader Version 4.0
Vertex Shader Version 4.0
Hardware T & L Yes
Vendor ID 1002
Device ID 9616
Plug and Play ID VEN_1002&DEV_9616&SUBSYS_2AA9103C&REV_00
Driver Version 8.733.0.0
Memory 4.8 GB
Operating System Microsoft Windows 7 Professional Edition Service Pack 1 (build 7601), 64-bit
Service Pack 1
Size 64 Bit
Edition Professional
Version 6.1.7601
Locale 0809
BIOS BIOS Date: 09/07/10 09:17:09 Ver: 6.10
Version American Megatrends Inc. 6.10
Manufacturer American Megatrends Inc.
Date 08/16/32
Display Maximum Resolution 1360 x 768
Sound Device 1 Realtek High Definition Audio
Driver Version 6.0.1.6196
Sound Device 2 ManyCam Virtual Microphone
Driver Version
Sound Device 3 ManyCam Virtual Webcam
Driver Version
DVD hp DVD A DH16ABLH SATA CdRom Device
CD hp DVD A DH16ABLH SATA CdRom Device
Drive 1
Size 775.3 GB
Free 702.2 GB
Drive 2
Size 156.2 GB
Free 50.0 GB
Browsers
Internet Explorer 11.0.9600.17843
Chrome 43.0.2357.130
Firefox 39.0
Safari
Software
Java 8.0.310
Flash 17.0.0.188
DirectX 11.0
.NET 3.5.30729.5420
QuickTime
Adobe PDF Reader 11.0.10.32