Intel® Pentium® D Processor 960 (3.60GHz, 2X2M, 800MHz FSB) [add $430 or $10/month2]
May delay your OptiPlex GX620 ship date
Intel® Pentium® D Processor 950 (3.40GHz, 2X2M, 800MHz FSB) [add $190 or $4/month2]
Intel® Pentium® D Processor 940 (3.20GHz, 2X2M, 800MHz FSB) [add $100 or $2/month2]
Intel® Pentium® D Processor 930 (3.00GHz, 2X2M, 800MHz FSB) [add $60 or $1/month2]
Intel® Pentium® D Processor 820 (2.8GHz,DC,2X1M,800MHz FSB) [Included in Price]
Dell Recommended
Intel® Pentium® 4 Processor 670 with HT (3.8GHz, 2M, 800MHz FSB) [add $536 or $13/month2]
Intel® Pentium® 4 Processor 650 with HT (3.4GHz, 2M, 800MHz FSB) [add $106 or $2/month2]
Intel® Pentium® 4 Processor 640 with HT (3.2GHz, 2M, 800MHz FSB) [add $51 or $1/month2]
Intel® Pentium® 4 Processor 630 with HT (3GHz, 2M, 800MHz FSB) [add $21]
Intel® Pentium® 4 Processor 521 with HT (2.8GHz, 1M, 800MHz FSB) add $0