ok i need to buy a new graphics card i have between these two


Force3D HD 5450 AMD ATI Radeon 2GB PCI Express x 16 Video Graphics Card HMDI DVI
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PCI Express based PC is required with one X16 lane graphics slot available on the motherboard. 400 Watt or greater power supply recommended. Certified power supplies are recommended. Minimum 1GB of system memory, work with DDR2 or DDR3. Installation software requires CD-ROM drive.DVD playback requires DVD drive Blu-rayTM playback requires Blu-ray drive.





XFX-Radeon HD 6570 1gb ddr3 pci express graphics card


Model

Brand
XFX
Model
HD-657X-ZHF2
Interface
Interface
PCI Express 2.1 x16
Chipset
Chipset Manufacturer
AMD
GPU
Radeon HD 6570
Core Clock
650MHz
Stream Processors
480 Stream Processing Units
Memory
Effective Memory Clock
1600MHz
Memory Size
1GB
Memory Interface
128-bit
Memory Type
DDR3
3D API
DirectX
DirectX 11
OpenGL
OpenGL 4.1
Ports
HDMI
1 x HDMI
D-SUB
1 x D-SUB
DVI
1 x DVI
General
RAMDAC
400 MHz
Max Resolution
2560 x 1600
CrossFireX Support
No
Cooler
With Fan
Dual-Link DVI Supported
Yes
HDCP Ready
Yes
Card Dimensions
5.9" x 4.38" x 0.74"
Features
Features
AMD Advanced Parallel Processing Technology (APP)
AMD Avivo HD
AMD HD3D Technology
AMD Hybrid Graphics Technology
AMD PowerPlay Technology
AMD Stream Technology

so which one should i get? [ Register or Signin to view external links. ]