Dell Optiplex 9020 Business Desktop Mini Tower Intel Core i5 i5-4670 8GB RAM 500GB HDD 1 GB DDR3 1G AMD Radeon HD 8490 DVDRW Windows 7 Pro 3 Yr Warranty Processor: Intel Core 4th Generation i5-4670 Processor (3.40GHz Turbo, 6MB, w/ HD Graphics 4600) 8 GB Dual Channel DDR3 at 1600MHz Non-ECC; 500 GB SATA Hard Drive (7200 RPM) Windows 7 Professional (Free Upgrade to Windows 10 Pro); 1G AMD Radeon HD 8490 16X DVD +/- RW Drive; Mini Tower Dell 30 Months Basic Hardware Service with NBD Limited Onsite Service After Remote Diagnosis from Dell**