 "Sapphire RADEON R7 240 with Boost graphics card - Radeon 4 GB" " Sapphire GB 11216-02-20G Video Cards CDWG.com
"The SAPPHIRE R7 240 with Boost now has the latest DDR3 memory clocked at 1800MHz effective, and runs with a core clock speed of 730 MHz which with PowerTune Dynamic Boost rises to 780 MHz on the engine." 
 "ASUS Radeon RX460 DUAL OC 2GB AMD Graphics Card"@en Card LN74025 - DUAL-RX460-O2G | SCAN UK"@en
"2GB ASUS Radeon RX 460 DUAL OC, 14nm Polaris, PCIe 3.0, 7000MHz GDDR5, 1224MHz Boost/1244MHz in OC mode, 896 Streams     "@en 