AMD Geode LX 800@0.9W - Manual (Page 238)

238 AMD Geode™ LX Processors Data Book
Graphics Processor 33234H
Table 6-7. Graphics Processor Feature Comparison
Feature AMD Geode™ GX Processor AMD Geode™ LX Processor
Color Depth 8, 16, 32-bpp 8, 16, 32-bpp (A) RGB 4 and 8-bit indexed
ROPs 256 (src, dest, pattern) 256 (2-src, dest and pattern)
BLT Buffers FIFOs in Graphics Processor FIFOs in Graphics Processor
BLT Splitting Managed by hardware Managed by hardware
Video Synchronized BLT/Vector Throttle by VBLANK Throttle by VBLANK
Bresenham Lines Yes Yes
Patterned (stippled) Lines No Yes
Screen to Screen BLT Yes Yes
Screen to Screen BLT with
mono expansion Yes Yes
Memory to Screen BLT Yes (through CPU writes) Yes (throttled rep movs writes)
Accelerated Text No No
Pattern Size (Mono) 8x8 pixels 8x8 pixels
Pattern Size (Color) 8x1 (32 pixels) 8x8 pixels
8x2 (16 pixels)
8x4 (8 pixels)
Monochrome Pattern Yes Yes (with inversion)
Dithered Pattern (4 color) No No
Color Pattern 8, 16, 32-bpp 8, 16, 32-bpp
Transparent Pattern Monochrome Monochrome
Solid Fill Yes Yes
Pattern Fill Yes Yes
Transparent Source Monochrome Monochrome
Color Key Source Transparency Y with mask Y with mask
Variable Source Stride Yes Yes
Variable Destination Stride Yes Yes
Destination Write Bursting Yes Yes
Selectable BLT Direction Vertical and Horizontal Vertical and Horizontal
Alpha BLT Yes (constant
α or α/pix)
Yes (constant
α, α/pix, or sep. α channel)
VGA Support Decodes VGA Register Decodes VGA Register
Pipeline Depth 2 ops Unlimited
Accelerated Rotation BLT No 8, 16, 32-bpp
Color Depth Conversion No 5:6:5, 1:5:5:5, 4:4:4:4, 8:8:8:8