![A-Tech 16GB (4 x 4GB) PC3-8500 DDR3 1066/1067 MHz RAM for iMac Late 2009 21.5-inch / 27-inch | 204-Pin SODIMM Memory Upgrade Kit at Amazon.com A-Tech 16GB (4 x 4GB) PC3-8500 DDR3 1066/1067 MHz RAM for iMac Late 2009 21.5-inch / 27-inch | 204-Pin SODIMM Memory Upgrade Kit at Amazon.com](https://m.media-amazon.com/images/I/81Ur16TTIQL.jpg)
A-Tech 16GB (4 x 4GB) PC3-8500 DDR3 1066/1067 MHz RAM for iMac Late 2009 21.5-inch / 27-inch | 204-Pin SODIMM Memory Upgrade Kit at Amazon.com
![CPU-Z says my RAM is clocked at 666.6MHz (Jesus, creepy scary) although it should be at 1333MHz. Did it downclock itself somehow? : r/overclocking CPU-Z says my RAM is clocked at 666.6MHz (Jesus, creepy scary) although it should be at 1333MHz. Did it downclock itself somehow? : r/overclocking](http://i.imgur.com/3y1EcIz.png)
CPU-Z says my RAM is clocked at 666.6MHz (Jesus, creepy scary) although it should be at 1333MHz. Did it downclock itself somehow? : r/overclocking
![KINGSTON TECHNOLOGY,DDR3 SDRAM KCM633-ELC, 1GB 1RX8 PC2-6400U 666-12-D1, 800 MHZ : IRONTIME SALES INC. KINGSTON TECHNOLOGY,DDR3 SDRAM KCM633-ELC, 1GB 1RX8 PC2-6400U 666-12-D1, 800 MHZ : IRONTIME SALES INC.](https://irontime-sales.com/wp-content/uploads/imported/2/KINGSTON-TECHNOLOGYDDR3-SDRAM-KCM633-ELC-1GB-1RX8-PC2-6400U-666-12-D1-800-MHZ-222152898722-3-600x287.jpg)
KINGSTON TECHNOLOGY,DDR3 SDRAM KCM633-ELC, 1GB 1RX8 PC2-6400U 666-12-D1, 800 MHZ : IRONTIME SALES INC.
![Dual channel 2GB 4GB 8g PC3 PC2 DDR2 DDR3 Desktop memory 1333MHZ 1600MHZ 667 800 MHZ 8gb RAM 2G 667MHZ 800MHZ 1333 Module|4gb ddr3|ddr3 1333ddr3 pc3 - AliExpress Dual channel 2GB 4GB 8g PC3 PC2 DDR2 DDR3 Desktop memory 1333MHZ 1600MHZ 667 800 MHZ 8gb RAM 2G 667MHZ 800MHZ 1333 Module|4gb ddr3|ddr3 1333ddr3 pc3 - AliExpress](https://ae01.alicdn.com/kf/HTB1yo0wVkvoK1RjSZFwq6AiCFXaS/Dual-channel-2GB-4GB-8g-PC3-PC2-DDR2-DDR3-Desktop-memory-1333MHZ-1600MHZ-667-800-MHZ.jpg_Q90.jpg_.webp)
Dual channel 2GB 4GB 8g PC3 PC2 DDR2 DDR3 Desktop memory 1333MHZ 1600MHZ 667 800 MHZ 8gb RAM 2G 667MHZ 800MHZ 1333 Module|4gb ddr3|ddr3 1333ddr3 pc3 - AliExpress
![Used Kingston Pc Memory Ram Memoria Module Desktop Ddr3 2gb 4gb 8gb Pc3 1333 1600 Mhz 1333mhz 1600mhz 10600 12800 2g 4g Ram - Rams - AliExpress Used Kingston Pc Memory Ram Memoria Module Desktop Ddr3 2gb 4gb 8gb Pc3 1333 1600 Mhz 1333mhz 1600mhz 10600 12800 2g 4g Ram - Rams - AliExpress](https://ae01.alicdn.com/kf/HTB1PMRVR9zqK1RjSZFjq6zlCFXaM/used-Kingston-PC-Memory-RAM-Memoria-Module-Desktop-DDR3-2GB-4GB-8GB-PC3-1333-1600-MHZ.jpg_.webp)
Used Kingston Pc Memory Ram Memoria Module Desktop Ddr3 2gb 4gb 8gb Pc3 1333 1600 Mhz 1333mhz 1600mhz 10600 12800 2g 4g Ram - Rams - AliExpress
![I currently have 6GB DDR3 666MHz, worth upgrading? - CPUs, Motherboards, and Memory - Linus Tech Tips I currently have 6GB DDR3 666MHz, worth upgrading? - CPUs, Motherboards, and Memory - Linus Tech Tips](https://pbs-prod.linustechtips.com/monthly_12_2015/post-187087-0-72270300-1450455825.png)