Introduction

Today AMD launches their new Radeon HD 4650 and 4670 cards. Both cards are based on the same RV730 graphics processor which is a derivative of the RV770.
Compared to the RV770, the number of shaders and ROPs has been reduced. Also the memory bus interface has been halfed from 256 bit to 128 bit. The only difference between the HD 4650 and the HD 4670 are the clock speeds.

AMD is positioning their cards in the lower midrange segment with a price point well below $100. The media PC features have remained the same as on the HD 48xx Series with UVD2, HDMI via adapter, HDCP and UVD2 video decode acceleration.

	S3 Chrome 440 GTX	GeForce 9400 GT	GeForce 9500 GT	PowerColor PCS HD 4670	Radeon HD 3850	Radeon HD 3870	GeForce 9600 GT	GeForce 8800 GT	GeForce 9800 GT	Radeon HD 4850
Shader units	32	16	32	320	320	320	64	112	112	800
ROPs	4	8	8	8	16	16	16	16	16	16
GPU	Chrome 400	G96	G96	RV730	RV670	RV670	G94	G92	G92	RV770
Transistors	Unknown	314M	314M	512M	666M	666M	505M	754M	754M	956M
Memory Size	256 MB	512M	256 MB / 512 MB	512 MB	256 MB	512 MB	512 MB	512 MB	512 MB	512 MB
Memory Bus Width	64 bit	128 bit	128 bit	128 bit	256 bit	256 bit	256 bit	256 bit	256 bit	256 bit
Core Clock	800 MHz	550 MHz	550 MHz	770 MHz	670 MHz	777 MHz	650 MHz	600 MHz	600 MHz	625 MHz
Memory Clock	800 MHz	400 MHz	900 MHz	1000 MHz	828 MHz	1126 MHz	900 MHz	900 MHz	900 MHz	993 MHz
Price	$69	$59	$89	$85	$99	$125	$90	$140	$160	$170