4.0 WLAN options (The DW1520 card, and the DW1501 card are IEEE 802.11n certified): Chip: Broadcom BCM4313 (b/g/n (2.4 GHz) 150 Mbit/s) + FCC ID: QDS-BRCM10 50 + "Dell Wireless 1501 WLAN Half Mini-Card" Chip: Broadcom BCM4322 (a/b/g/n-draft (2.4 or 5 GHz) 300 Mbit/s) + FCC ID: QDS-BRCM10 31 + "Dell Wireless 1510 Wireless-N WLAN Mini-Card" Chip: Broadcom BCM43224 (a/b/g/n (2.4 or 5 GHz) 300 Mbit/s) + FCC ID: QDS-BRCM10 41 + "Dell Wireless 1520 Wireless-N WLAN Mini-Card" Motherboard: Dell 0KWVT8 CPU: Intel Core i7 4790 (8 MiB L3 Cache;3.6 GHz Base Clock, Turbo to 4.0 GHz) Integrated Graphics — Intel HD 4600 XPS 8500 Released on May 2, 2012, the Dell XPS 8500 is the first version in this series to have the third-generation (Ivy Bridge) Intel Quad Core i5 and i7 processor added to it. This version of the XPS's motherboard uses the Intel Chipset H77 with socket LGA 1155 and has USB 3.0 ports built into the front. The "Special Edition" version of this desktop, (starting price $999 as of Jan '13), comes standard with such advanced features as an Intel Core i7, Blu-ray drive and a 32 GiB Intel mSATA SSD mounted on the motherboard to enhance the operational speed of the traditional hard disk. System specifications Memory: Type: unbuffered, non-ECC, quad-channel DDR3 (Up to 1600 MHz) Maximum: 32 GiB, with 2/4/8 GiB in base Video: Integrated: Intel HD Graphics 2500/4000 (Up to 1 GiB system) Additional: Nvidia Geforce GT 620 – 1 GiB GDDR5 Nvidia Geforce GT 640 – 1 GiB GDDR5 Nvidia Geforce GTX 660 – 1.5 GiB GDDR5 AMD Radeon HD 7570 – 1 GiB GDDR5 AMD Radeon HD 7770 – 2 GiB GDDR5 AMD Radeon HD 7870 – 2 GiB GDDR5 Communications: Network Adapter: 10/100/1000 Mbit/s integrated network card Wireless: Wi-Fi 802.11 b/g/n; Bluetooth 4.0 XPS 8300 This series uses Intel H67 socket 1155 Sandy bridge CPU's, such as i5-2320 and i7-2600K. Motherboard: Dell 0Y2MRG (DH67M01 TB0420) Memory: Type: unbuffered, non-ECC, quad-channel DDR3 Maximum: 32 GiB, with 2/4/8 GiB in base WLAN options (The DW1520 card, and the DW1501 card are IEEE 802.11n certified): Chip: Broadcom BCM4313 (b/g/n (2.4 GHz) 150 Mbit/s) + FCC ID: QDS-BRCM10 50 + "Dell Wireless 1501 WLAN Half Mini-Card" Chip: Broadcom BCM4322 (a/b/g/n-draft (2.4 or 5 GHz) 300 Mbit/s) + FCC ID: QDS-BRCM10 31 + "Dell Wireless 1510 Wireless-N WLAN Mini-Card" Chip: Broadcom BCM43224 (a/b/g/n (2.4 or