Computers

Server-type computers and client-type computers, except the following:

1) ones whose processing units, main memory units, input/output controllers and power supplies are structurally multiplexed,

2) ones capable of performing computations using more than four central processing units (CPUs),

3) ones with 512 or more input/output signal transmission channels (limited to those whose maximum data transfer rate is 10 gigabit or more per second),

4) server-type computers, which refer to computers designed for providing services, etc. via network (the same applies hereinafter.), having CPUs designed to execute multiple commands of various numbers of bits, and the CPUs of which are designed for exclusive use by the computers,

5) server-type computers having CPUs designed to execute multiple commands of various numbers of bits, and the CPUs of which are designed exclusively for 64-bit computer architecture,

6) server-type computers having CPUs other than those designed to execute multiple commands of various numbers of bits, and the CPUs of which are without a function of performing a decimal floating-point arithmetic, or

7) ones mainly used with built-in power supply instead of being connected to power line.

[Server-type computers]

●Energy consumption efficiency shall be a geometric average of values obtained by dividing, by power consumption, performance values measured for each component of a server-type computer (CPU, memory and storage) using workloads (worklets) as stipulated in Server Efficiency Rating Tool Ver. 2.0.

[Client-type computers]

●Energy consumption efficiency shall be annual energy consumption (kWh/year) measured by a method stipulated in JIS C 62623 (2014).

[Server-type computers]

In the target fiscal year and each subsequent fiscal year, for each category, the weighted average value obtained by weighting energy consumption efficiency with shipment volume shall not be below the target standard value.

Category			[Target standard value] Standard energy consumption efficiency
CPU type	No. of CPU sockets	Category name
x86	1	1	8.9
	2	2	11.9
	4	3	8.9
SPARC	1	4	6.3
	2	5	4.2
	4	6	3.5
Power	1	7	4.6
	2	8	4.9
	4	9	4.2

Remarks:

“x86” refers to CPUs designed to execute multiple commands of various numbers of bits, not designed exclusively for each computer, but having a 64-bit architecture compatible with a 32-bit architecture. “SPARC” refers to CPUs other than those designed to execute multiple commands of various number of bits, which has a function to perform a decimal floating-point arithmetic and a register control function. The register control function refers to a function of saving the content of a register in a CPU and restoring it, allowing the content that is being used in a main program to be used in a subroutine program without saving and restoring in a memory. “Power” refers to CPUs other than those designed to execute multiple commands of various number of bits, which has a function to perform a decimal floating-point arithmetic but not the register control function.

[Client-type computers]

In the target fiscal year and each subsequent fiscal year, for each category, the weighted average value obtained by weighting energy consumption efficiency with shipment volume shall not be above the target standard value which is a weighted average value obtained by weighting standard energy consumption efficiency^*1 with shipment volume.

*1: Values obtained from the standard energy consumption efficiency calculation formulas and rounded off to one decimal place.

Category						Standard energy consumption efficiency calculation formula
Type of computer		P score	Screen size	Cabinet capacity	Category name
Notebook personal computer		Less than 8	Less than 15 inches	―	10	E=5.21+TECMEMORY+TECINT_DISPLAY + TECSTORAGE + TECGRAPHIC
			15 inches or more	―	11	E=7.75 + TECMEMORY + TECINT_DISPLAY + TECSTORAGE + TECGRAPHIC
		8 or more	―	―	12	E=11.34 + TECMEMORY + TECINT_DISPLAY + TECSTORAGE + TECGRAPHIC
Desktop personal computer	Integrated	Less than 8	―	―	13	E=39.87 + TECMEMORY + TECINT_DISPLAY + TECSTORAGE + TECGRAPHIC
		8 or more	―	―	14	E=53.32 + TECMEMORY + TECINT_DISPLAY + TECSTORAGE + TECGRAPHIC
	Separated	―	―	Less than 5 liters	15	E=29.59 + TECMEMORY + TECSTORAGE + TECGRAPHIC
		―	―	5 liters or more and less than 20 liters	16	E=31.33 + TECMEMORY + TECSTORAGE + TECGRAPHIC + TECPOWER
		―	―	20 liters or more and less than 35 liters	17	E=28.45 + TECMEMORY + TECSTORAGE + TECGRAPHIC + TECPOWER
		―	―	35 liters or more	18	E=40.47 + TECMEMORY + TECSTORAGE + TECGRAPHIC + TECPOWER

Remarks:

“Integrated desktop personal computer” refers to a desktop computer whose main body and display function as a single machine receiving AC power via an AC power cable. “Separated desktop personal computer” refers to a desktop computer composed of a computer main body having no display and an external display. “P score” refers to a value obtained by multiplying the number of CPU cores by the CPU clock frequency (unit: GHz). “Screen size” refers to a value obtained by dividing the diagonal outer dimension of the display area, expressed in centimeter, by 2.54. The value shall be rounded off to one decimal place. “Cabinet capacity” refers to a capacity of a cabinet housing hardware components of a computer, expressed in liter. “E” represents the following value. 　E: Standard energy consumption efficiency (unit: kWh/year) “TECMEMORY” shall be a value calculated by the following formula. 　TECMEMORY＝ＭMAX×αM 　ＭMAX: Maximum memory capacity excluding cache memory (unit: gigabyte). 　αM: A value given in the right column of the table below corresponding to the category in the left column. Category αM 10, 11 and 12 0.186 13, 14, 15, 16, 17 and 18 0.248 “TECINT_DISPLAY” shall be a value calculated by the formula given in the right column of the table below corresponding to the category in the left column. Category Screen size TECINT_DISPLAY 10, 11 and 12 ― TECINT_DISPLAY= (8.76×0.30) × ((A÷2.542)×0.0300＋r×0.244) 13 and 14 Less than 17.4 inches TECINT_DISPLAY= (8.76×0.35) × ((A÷2.542)×0.0300＋r×0.244) 17.4 inches or more TECINT_DISPLAY= (8.76×0.35) × ((A÷2.542)×0.0393) 　A: A value obtained by multiplying the height of the display area by the width and rounded off to 　　 one decimal place (unit: square centimeter) 　r: Total number of pixels displayed on the screen (unit: mega-pixel) TECSTORAGE shall be a value given in the right column of the table below corresponding to the category in the left column. If a computer has neither 2.5-inch magnetic disk unit nor 3.5-inch magnetic disk drive, the value shall be 0. Category Type of magnetic disk unit TECSTORAGE 10, 11 and 12 ― 2.510 13, 14, 15, 16, 17 and 18 With 2.5-inch magnetic disk unit 3.140 With 3.5-inch magnetic disk unit 20.380 TECGRAPHIC shall be a value calculated by the formula given in the right column of the table below corresponding to the category in the left column. If a computer has no stand-alone GPU, the value shall be 0. Category TECGRAPHIC 10, 11 and 12 TECGRAPHIC＝4.198 13, 14, 15, 16, 17 and 18 TECGRAPHIC＝0.587×FB＋30.463 　FB: Memory area for temporarily storing image data to be displayed on a screen (unit: gigabit/second) However, if “TECGRAPHIC” is found to be 130 or more as a result of the above calculation, “TECGRAPHIC” shall be 130. TECPOWER shall be a value calculated by the following formula. 　TECPOWER＝PAC×0.0543 　PAC: Rated input of internal power supply unit (unit: watt)

[Server-type computers]

●FY2021 and each subsequent fiscal year

[Client-type computers]

●FY2022 and each subsequent fiscal year

●Product name or type

●Category name

●Energy consumption efficiency

●Name of manufacturer, etc

●Description of energy consumption efficiency

Display items shall be presented at locations where they can be readily noticed in catalogs showing performance indications and in documents provided by the manufacturer, etc. for promotion of sales.

Manufacturers or importers whose annual manufacturing volume or importing volume (limited to shipment to the domestic market) is 200 units or more may be subject to recommendations and orders.