Do I need a new HDD? 80MB/s Read?

[xchris95x11]

I have an Hitachi HDD 640GB... are my read/write speeds good? I am thinking on buying a new HDD but I am not quite sure if that would be the best option, I am wanting to play more up to date games.
My Read speeds: 80.25MB/s
Write speeds: 53MB/s
Health status (CrystalDiskInfo): Good 30 C
Rotation rate: 7200RPM
Transfer mode: SATA/300
The HDD I would like to get:
http://www.ebuyer.com/272942-seagate-320gb-barracuda-internal-hard-drive-st320dm000

 

[Sniper]

Doubt new HD would help you player newer games, better graphics card would. Faster HDD' will help with the loads times but not the frame rate