370-7800 Sun AMD Opteron Model 270 E6 Stepping 2.2GHz 1MB Cache Dual Core CPU for Sun Fire X4100 and X4200 x64 Servers RoHS-5 Compliant
Amazon.com: Dell Optiplex, Core 2 Duo 3.0Ghz, 1TB Hard Drive, New 8GB of Memory, Windows 10 x64, Dual 19in Monitors (Renewed) : Electronics
x64 vs. x86: Key Differences {Features, Limitations, and Use Cases}
Amazon.com: AMD Athlon 64 X2 Dual-Core 3800+ 2.0 GHz Processor with 89-Watt Power : מוצרי חשמל
Amazon.com: Dell Optiplex (Intel Dual-Core 3.16GHz, New 8GB Memory, 2TB HDD, DVD, Windows 10 Home x64, w/ USB Keyboard and Mouse) (Renewed) : Electronics
Multi-core processor - Wikipedia
windows 7 - Intel® Core™2 Duo Processor E4300 - Is it a 64 Bit Processor? - Super User