Chrome 500 series

S3 Graphics Chrome 500 series is the successor of S3 Graphics Chrome S20 series, and is produced in parallel to the S3 Graphics Chrome 400. 

Availability 
The 530 GT is sold from S3's store for a price of $54.95 USD.  No other online stores are known to carry this model and it is out of stock as of November 6, 2009. 
The 540GTX is sold from S3's Gstore for $69.95.  It is similarly out of stock although a low profile version has been produced by Aopen Japan  and is still on sale as of November 6, 2009. 

Features
The production model is with a 65 nm process, supports DirectX 10.1, OpenGL 3.0, and uses the PCI Express 2.0 interface.  Chromotion engine now supports Variable length decoding, and dual-stream Blu-ray playback.  Display unit includes 2 dual-link DVI transmitters with integrated HDMI (audio passthrough) and HDCP, an integrated dual channel LVDS transmitter, an integrated TV/HDTV encoder, and support for two analog CRTs.  530 GT runs at 625 MHz core speed, and has 512MB of 500 MHz GDDR2 memory on a 64 bit bus.  The 540GTX added a Displayport in the full height version as well as increased clock and memory speeds of 800Mhz and 850Mhz GDDR3 respectively. 

From Linux driver version 14.02.10 on, S3 Chrome 500 video cards support VDPAU. 

Performance
The 500 MHz GDDR2 memory clock, combined with the cards 64 bit memory bus, gives it a total memory bandwidth of 8GB/s, on par with budget cards from Nvidia and AMD.  Performance information released by S3 indicates the cards performance in 3dMark 2006 is comparable to an AMD HD4350. 

References 
S3 Product Page
Overview of Product Features
Froogle Search Showing No Other Stores Carrying the Product

Category:Video cards