Powercolor PCS HD 4670 512 MB Review 32

Powercolor PCS HD 4670 512 MB Review

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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
9400 GT
9500 GT
PCS HD 4670
HD 3850
HD 3870
9600 GT
8800 GT
9800 GT
HD 4850
Shader units 32163232032032064112112800
GPUChrome 400G96G96RV730RV670RV670G94G92G92RV770
TransistorsUnknown314M314M512M666M 666M505M 754M754M 956M
Memory Size256 MB512M256 MB /
512 MB
512 MB256 MB 512 MB 512 MB 512 MB 512 MB 512 MB
Memory Bus Width 64 bit128 bit128 bit128 bit256 bit 256 bit 256 bit 256 bit 256 bit 256 bit
Core Clock800 MHz550 MHz550 MHz770 MHz670 MHz 777 MHz 650 MHz 600 MHz 600 MHz 625 MHz
Memory Clock800 MHz400 MHz900 MHz1000 MHz828 MHz 1126 MHz 900 MHz 900 MHz 900 MHz 993 MHz
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