Edit Values
Godson-2B
Godson-2B chip
General Info
Designer	Loongson
Manufacturer	SMICS
Model Number	2B
Part Number	MZD110
Market	Desktop
Introduction	2003 (announced) October 17, 2003 (launched)
General Specs
Family	Godson 2
Series	Godson 2
Frequency	300 MHz
Microarchitecture
ISA	MIPS64 (MIPS)
Microarchitecture	GS464
Core Name	GS464
Process	180 nm
Technology	CMOS
Word Size	64 bit
Cores	1
Threads	1
Multiprocessing
Max SMP	1-Way (Uniprocessor)
Electrical
Power dissipation	3 W

Godson-2B (龙芯2B) is a 64-bit MIPS performance processor developed by ICT and later Loongson for desktop computers. Introduced in late 2003, the Godson-2B operates at up to 300 MHz consuming up to 3 W. This chip was manufactured on SMICS' 0.18 µm process and is known as China's first 64-bit microprocessor. This chip reached tapeout on August 13, 2003.

The Godson-2B is roughly three to five times the performance of the Godson 1.

Cache

Main article: GS464 § Cache

[Edit/Modify Cache Info]

Cache Organization Cache is a hardware component containing a relatively small and extremely fast memory designed to speed up the performance of a CPU by preparing ahead of time the data it needs to read from a relatively slower medium such as main memory. The organization and amount of cache can have a large impact on the performance, power consumption, die size, and consequently cost of the IC. Cache is specified by its size, number of sets, associativity, block size, sub-block size, and fetch and write-back policies. Note: All units are in kibibytes and mebibytes.

L1$ 64 KiB 65,536 B 0.0625 MiB L1I$ 32 KiB 32,768 B 0.0313 MiB 1x32 KiB     L1D$ 32 KiB 32,768 B 0.0313 MiB 1x32 KiB