Category Archives: Cirrus Logic

More ISA VGA Benchmarks

After establishing that Trident VGA cards are indeed very slow, the natural follow-up question is: Are there cards even slower than that? But not some 8-bit VGA card from the 1980s (or a Realtek from the 1990s), and not some … Continue reading

Posted in Cirrus Logic, IBM, S3, VGA | 7 Comments

The ISA OSC Mystery

About twenty years ago I ended up with a spare ISA graphics card from an upgraded computer. It was a SVGA card based on the Cirrus Logic CL-GD5422 chip, equipped with 1 MB video memory. This was a very cheap … Continue reading

Posted in Cirrus Logic, Graphics, PC hardware | 14 Comments