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6-2 www.hp.com Technical Reference Guide
Integrated Graphics Subsystem
Each system implements one of two IGC types; the Intel HD Graphics 2000 or the Intel HD
Graphics 3000, depending in the processor installed. Table 6-1 lists the type of IGC associated
with the types of processor supported by these systems.
The IGC uses a portion of system memory for instructions, textures, and frame (display)
buffering. At boot time, 32 megabytes of system memory is pre-allocated for the graphics
controller whether using Windows XP, Windows Vista, or Windows 7. Using a process called
Dynamic Video Memory Technology (DVMT), the IGC dynamically allocates display and
texture memory amounts according to the needs of the application running on the system.
Table 6-1
Supported Intel Processor IGC Specifications
Intel
Series Model IGC Type
Graphics
Clock Rate
# of Graphics
Execution UnitsStandard Turbo
Core i7 2600K HD 3000 850 MHz 1350 MHz 12
2600 HD 2000 850 MHz 1350 MHz 6
2600S HD 2000 850 MHz 1350 MHz 6
Core i5 2500K HD 3000 850 MHz 1100 MHz 12
2500 HD 2000 850 MHz 1100 MHz 6
2500S HD 2000 850 MHz 1100 MHz 6
2500T HD 2000 650 MHz 1250 MHz 6
2400 HD 2000 850 MHz 1100 MHz 6
2400S HD 2000 850 MHz 1100 MHz 6
2300 HD 2000 850 MHz 1100 MHz 6
2390T HD 2000 650 MHz 1100 MHz 6
Core i3 2120 HD 2000 850 MHz 1100 MHz 6
2105 850 MHz
2100 850 MHz
2100T 650 MHz
Pentium G850 HD 2000 850 MHz 1100 MHz 6
G840 850 MHz
G620 850 MHz
G620T 650 MHz