ATI Radeon HD 5670 GDDR3 with 512MB video card for the Mid 2010 iMac 27". Comes in opened Apple service part box.
Brand: Apple (original, genuine, OEM, not third-party)
Apple Part Number: 661-5579
Serial Number: W805102UTDUWA
Product EEE Code: DUV, DUW (See "What is an EEE Code?" below for more information.)
Compatible with:
A1312
iMac (27-inch, Mid 2010) — MC510LL/A (3.2 GHz), MC511LL/A (2.8 GHz), MC784LL/A (2.93 GHz)