Compaq Pressario SR5604F Radeon X1300XGE vs HD 4550

I have a Compaq Pressario SR5604F and a Radeon x1300 XGE 512 MB on it. My friend wants to sell me a Visiontek Radeon HD 4550 Video Card - 512MB DDR3, PCI-Express 2.0, DVI, HDMI, VGA and says it is better.
i did a side by side comparison:

Visiontek Radeon HD 4550 Video Card - 512MB DDR3, PCI-Express 2.0, DVI, HDMI, VGA:

Manufacturer: ATi
Series: Radeon HD 4k
GPU: RV710
Release Date: 2008-09-29
Interface: PCI-E 2.0 x16
Core Clock: 600 MHz
Shader Clock: 600 MHz
Memory Clock: 800 MHz (1600 DDR)
Memory Bandwidth: 12.8 GB/sec
FLOPS: 96 GFLOPS
Pixel Fill Rate: 2400 MPixels/sec
Texture Fill Rate: 4800 MTexels/sec
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Max Power Draw: 25 W
Noise Level: Quiet
Framebuffer: 256,512 MB
Memory Type: GDDR3
Memory Bus Type: 32x2 (64 bit)
DirectX Compliance: 10.1
OpenGL Compliance: 2.1
PS/VS Version: 4.1/4.1
Process: 55 nm
Shader Processors: 80
Pipeline Layout: ?
Texture Units: 8
Raster Operators 4

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Radeon x1300 XGE 512 MB D/D/VO VT-1300XG512Px REV 1.3

Manufacturer: ATi
Series: Radeon X1K
GPU: RV535
Release Date: 2006-08-12
Interface: PCI-E x16
Core Clock: 500 MHz
Memory Clock: 400 MHz (800 DDR)
Memory Bandwidth: 12.8 GB/sec
Shader Operations: 6000 MOperations/sec
Pixel Fill Rate: 2000 MPixels/sec
Texture Fill Rate: 2000 MTexels/sec
Vertex Operations: 625 MVertices/sec
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Noise Level: Moderate
Framebuffer: 128,256,512 MB
Memory Type: DDR
Memory Bus Type: 64x2 (128 bit)
DirectX Compliance: 9.0c
OpenGL Compliance: 2.0
PS/VS Version: 3.0/3.0
Process: 80 nm
Fragment Pipelines: 12
Vertex Pipelines: 5
Texture Units: 4
Raster Operators 4