Revision as of 16:30, 19 March 2017

Template:mpu Godson-2E (龙芯2E) is a 64-bit MIPS performance processor developed by ICT and later Loongson for desktop computers. Introduced in early 2006, the Godson-2E operates at up to 1 GHz consuming 7W. This chip was manufactured on STMicroelectronics' 90 nm process and provides roughly three times the performance of 2C. This processor is known as China's first processor to reach gigahertz frequency.

The Godson-2E introduces a number of improvements over its predecessor, including double the clock frequency, the addition of a large L2 cache, and the integration of the northbridge on-die, supporting up to DDR-333.

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   L2$ 1 MiB 1,024 KiB 1,048,576 B 9.765625e-4 GiB     1x1 MiB 4-way set associative

Memory controller

[Edit/Modify Memory Info]

	Integrated Memory Controller
	Max Type DDR-333 Supports ECC Yes Max Mem 2 GiB Controllers 1 Channels 1 Max Bandwidth 4.962 GiB/s 5,081.088 MiB/s 5.328 GB/s 5,327.907 MB/s 0.00485 TiB/s 0.00533 TB/s Bandwidth Single 4.962 GiB/s