Newegg via their eBay store has the Sapphire PULSE Radeon RX 580 8GB GDDR5 DUAL HDMI / DVI-D / DUAL DP OC with Backplate (UEFI) PCI-E Graphics Card for $269.99. Apply the 10% off electronics coupon PRIMOTECH
during checkout to take off an additional 10%, for a total of $242.99 (plus tax if applicable). Shipping is free. Coupon expires today (7/10) at 11:00pm Pacific.
This card is over $300 everywhere else I checked (including Newegg's own site), and I haven't seen it cheaper in any previous SD threads.
EDIT: You can get it for $243.45 at Amazon if you have the AMEX 20% deal (https://www.amazon.com/Sapphire-1...B06ZZ6FMF8
). Might be better for folks who don't pay tax at Amazon but do at Newegg (although I doubt there are many people in that situation these days). Newegg was definitely better for me due to no sales tax, plus I want to save my 20% at amazon for Prime Day deals.