280 vs 380 https://www.youtube.com/watch?v=TekYEs1LUNU
380 vs 960 https://www.youtube.com/watch?v=66yhd36PdYg
280 je out...
Za 2500 bych jednoznačně bral 960 4GB, 960 ani 380 s 2GB bych za víc jak 2000 nekupoval, resp tu 380 bych nekoupil vůbec díky spotřebě, 3W rozdíl tam rozhodně není - https://www.reddit.com/r/hardware/comments/3bqnot/r9_380_vs_gtx960_total_system_power_under_load/ a koukně se... ať nemusíte hledat:
Yep, all the reviews I've seen contradicts the title, its somewhere between +38-95w.
+59w: http://www.gamersnexus.net/hwreviews/1984-amd-r9-390-380-benchmark-review/Page-2
+40-50w: http://www.techspot.com/review/1019-radeon-r9-390x-390-380/page7.html
+95w: http://www.overclockersclub.com/reviews/msi_r9_380_gaming_2g/15.htm
+53-74w: http://www.ocaholic.co.uk/modules/smartsection/item.php?itemid=1630&page=16
+38-53w: http://lanoc.org/review/video-cards/7097-powercolor-pcs-r9-380?showall=&start=7
+49-64w: http://lanoc.org/review/video-cards/7096-msi-r9-380-gaming-2g?showall=&start=7
+76w: http://www.eteknix.com/sapphire-nitro-r9-380-4gb-graphics-card-review/14/