Asus Radeon (DUAL-RX580-O8G) 8G RX 580 Dual OC PCI-E VGA Card $289 (Was $359) + 2 Bonus Games @ MSY

Seems a good deal, the 4GB was a popular deal here six months ago for $263+delivery and I can't see cheaper new for the 8Gb in a quick eBay search.
Seems you also get two free games according to this promotion

Asus Radeon (DUAL-RX580-O8G) 8G RX 580 Dual OC PCI-E VGA Card

OVERVIEW
1380 MHz Boost Clock in OC mode for outstanding performance and gaming experience.
Patented Wing-Blade 0dB Fans for max air flow with 105% more air pressure. Play in silence with 0dB fans.
IP5X-Certified Fans are dust resistant for longer fan lifespan.
Industry Only Auto-Extreme Technology with Super Alloy Power II delivers premium quality and best reliability.
VR-friendly HDMI Ports for immersive virtual reality experiences.
GPU Tweak II with Xsplit Gamecaster provides intuitive performance tweaking and instant gameplay streaming.

TECH SPCE
Graphics Engine
AMD Radeon RX 580

OpenGL
OpenGL®4.5

Video Memory
GDDR5 8GB

Engine Clock
1380 MHz (OC Mode)
1360 MHz (Gaming Mode)

Stream Processors
2304

Memory Clock
8 Gbps

Memory Interface
256-bit

Resolution
Digital Max Resolution:7680x4320

Interface
DVI Output : Yes x 1 (Native) (DVI-D)
HDMI Output : Yes x 2 (Native) (HDMI 2.0)
Display Port : Yes x 2 (Native) (Regular DP)
HDCP Support : Yes

Power Connectors
1 x 8-pin

Accessories
1 x CD
1 x Quick Guide

Software
ASUS GPU Tweak II & Driver

Dimensions
9.53 " x 5.07 " x 1.49 " Inch
24.2 x 12.89 x3.8 Centimeter