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Godson-2D1
General Info
Designer	Loongson
Manufacturer	STMicroelectronics
Model Number	2D1
Market	Desktop
Introduction	January 2006 (announced) 2006 (launched)
General Specs
Family	Godson 2
Series	Godson 2
Frequency	800 MHz
Microarchitecture
ISA	MIPS64 (MIPS)
Microarchitecture	GS464
Core Name	GS464
Process	130 nm
Technology	CMOS
Word Size	64 bit
Cores	1
Threads	1
Multiprocessing
Max SMP	1-Way (Uniprocessor)
Electrical
Power dissipation	6 W

Godson-2D1 (龙芯2D1) is a 64-bit MIPS performance processor developed by ICT and later Loongson for desktop computers.The Godson-2D1 operates at up to 800 MHz consuming up to 6 W. This chip was manufactured on STMicroelectronics' 0.13 µm process. This chip reached tapeout on January 6, 2005.

Loongson has claimed the Godson-2D has reached the performance level of 1.5 GHz PIV based on their SPECint2000 scores.

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$ 128 KiB 131,072 B 0.125 MiB L1I$ 64 KiB 65,536 B 0.0625 MiB 1x64 KiB 4-way set associative   L1D$ 64 KiB 65,536 B 0.0625 MiB 1x64 KiB 4-way set associative