HP Pavilion M8530F Desktop PC (2.2 GHz AMD Phenom X4 9550 Quad Core Processor, 5 GB RAM, 750 GB Hard Drive, DVD Drive, Vista Premium) (Discontinued by Manufacturer) Desktop PC with 2.2 GHz AMD Phenom X4 9550 quad-core processor, 2MB L2+2MB shared L3 cache 5120MB PC2-6400 DDR2 SDRAM memory (1x2048MB 3x1024MB expandable to 8GB), 750GB 7200RPM SATA hard drive NVIDIA GeForce 9300GE with hybrid SLI technology with 256MB dedicated video memory SuperMulti DVD Burner with LightScribe Technology Genuine Windows Vista Home Premium 64-bit, dims in inches: 7.60 (W) x 15.16 (L/D) x 16.54 (H) approx., 32 lbs. approx.