The Intel Upgrade Service was a relatively short-lived and controversial program of Intel that allowed some low-end processors to have additional features unlocked by paying a fee and obtaining an activation code that was then entered in a software program, which ran on Windows 7.

The program was introduced in September 2010 for the Clarkdale-based Pentium G6951 desktop processor (operating at 2.8 GHz), and immediately met with criticism from the specialist press.^{[1][2][3][4][5]} For a $50 fee, this processor could have one additional megabyte of cache enabled, as well as hyper-threading, making it almost like the Core i3-530, except for the slightly lower frequency that remained unchanged—the i3-530 operated at 2.93 GHz.^[3] The official designation for the software-upgraded processor was Pentium G6952.^[3] In order for the activation software to work, the motherboard had to have the DH55TC or DH55PJ chipset.^[1] One reviewer noted that at the market price of the time one could actually buy the i3-530 for only $15 more than the baseline Pentium G6951, making the upgrade premium card a very questionable proposition at the official price.^[6]

The program was extended in 2011 to the Sandy Bridge series of processors as follows:^[7]

• the Core i3-2312M (2.1 GHz, 3 MB cache) laptop processor could be upgraded to the Core i3-2393M with higher frequency and more cache (2.5 GHz, 4 MB cache)
• the Core i3-2102 (3.1 GHz, 3 MB cache) desktop processor could be upgraded to the Core i3-2153 with a higher frequency (3.6 GHz)
• the Pentium G622 desktop processor (2.6 GHz, 3 MB cache) could be upgraded to the Pentium G693 with a higher frequency (3.2 GHz)

The Sandy Bridge upgrade program was available in U.S., Canada, Mexico, Brazil, Peru, the Netherlands, Germany, the Philippines, and Indonesia.^[8]

Intel initially defended the program,^[8] but it was eventually discontinued in 2011.^[9]