On February 24, ALPHA will officially begin shipping their PAL8942 "Sunflower killer" copper heatsink for the P4 processor (socket 478).
The ALPHA PAL8942 is 10% larger than the PAL8045, and will use an 80mm fan. It has a rating of 0.23 deg C/W, compared to 0.28 deg C/W for the PAL8045, and 0.35 deg C/W for the AVC Sunflower. Dimensions (mm) are 78.5*90*42, compared to 80*80*45.5 for the PAL8045. Specifications available here.
The ALPHA PAL8942 is 10% larger than the PAL8045, and will use an 80mm fan. It has a rating of 0.23 deg C/W, compared to 0.28 deg C/W for the PAL8045, and 0.35 deg C/W for the AVC Sunflower. Dimensions (mm) are 78.5*90*42, compared to 80*80*45.5 for the PAL8045. Specifications available here.