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Modern personal computer CPUs (central processing units) consume a considerable amount of electric power. This must be considered when choosing a power supply unit, and when power consumption is constrained by production and cost. This article needs to be cleaned up to conform to a higher standard of quality. ...
Transmission lines in Lund, Sweden Electric power, often known as power or electricity, involves the production and delivery of electrical energy in sufficient quantities to operate domestic appliances, office equipment, industrial machinery and provide sufficient energy for both domestic and commercial lighting, heating, cooking and industrial processes. ...
A power supply unit (sometimes abbreviated power supply or PSU) is a device that supplies electrical power to a device or group of devices. ...
CPUs in other electronics often use far less power. For example, the CPUs in mobile phones or pacemakers use just a few microwatts. CPUs in personal computers use a lot of power because, in this context, computing power is usually considered much more important than energy efficiency. Top-performance speed requires significantly more power in the cases of most (but not all) CPU architectures. One of the simplest way to reduce the power consumption of a PC's CPU is just to decrease its clock rate. This article needs to be cleaned up to conform to a higher standard of quality. ...
The term pacemaker has multiple meanings: In sports, a pacemaker or pacer is a competitor who enters an athletics race with little or no intention of winning, but purely to set a fast pace for other competitors to follow. ...
Microwatt (SI symbol: µW) is a unit used for measuring the consumption of electrical power. ...
CPUs for desktop computers typically use more power than any other component inside the computer, except perhaps recent technology video cards which contain special purpose CPUs themselves. The steady trend in CPU power supplies over the past decade has been towards using lower voltages and having considerably higher currents. While energy-saving features have been instituted in PCs for when they are idle, the overall consumption of today's high-drain CPUs is considerable. This is in strong contrast with the much lower energy consumption of CPUs designed for low-power environments. One such CPU, the Intel XScale, can run at 600 MHz with only half a watt of power, whereas x86 PC processors from Intel in the same performance bracket consume roughly eighty times as much energy. This article may be too technical for most readers to understand. ...
XScale is Intels implementation of the 5th generation of the ARM architecture based on the v5TE ISA without the floating point instructions. ...
A megahertz (MHz) is one million (106) hertz, a measure of frequency. ...
The watt (symbol: W) is the SI derived unit of power. ...
x86 or 80x86 is the generic name of a microprocessor architecture first developed and manufactured by Intel. ...
Processor manufacturers usually release two power consumption numbers for a CPU, the typical thermal power, which is measured under normal load, and the maximum thermal power, which is measured under a worst-case set of instructions. For example, the Pentium 4 2.8GHz has 68.4W typical thermal power and 85W maximum thermal power. When the CPU is idle, it will draw far less than the typical thermal power.
There are some engineering reasons for this pattern.
- Performing at higher speed always requires higher power. Reducing processor speed when possible saves power.
- New features generally require more transistors, each of which uses power. Turning unused areas off saves power.
- As a processor model's design matures, smaller transistors, lower-voltage structures, and design experience reduce power consumption.
The ARM architecture (originally the Acorn RISC Machine) is a 32-bit RISC processor architecture that is widely used in a number of applications. ...
DEC StrongARM SA-110 Microprocessor The StrongARM microprocessor is a faster version of the Advanced RISC Machines ARM design. ...
XScale is Intels name for their line of StrongARM-based RISC microprocessors and microcontrollers, which they aquired from DECs Digital Semiconductor division as the side-effect of a lawsuit between the two companies. ...
Intel Corporation (NASDAQ: INTC) (founded 1968) is a U.S.-based multinational corporation that is best known for designing and manufacturing microprocessors and specialized integrated circuits. ...
XScale is Intels name for their line of StrongARM-based RISC microprocessors and microcontrollers, which they aquired from DECs Digital Semiconductor division as the side-effect of a lawsuit between the two companies. ...
The watt (symbol: W) is the SI derived unit of power. ...
PC CPUs The tower of a personal computer. ...
- Dual-core PowerPC MPC8641D 90nm, 2GHz, 1.2 V, 15-25 W
- PowerPC 750FX .13um, 900 MHz, 1.2 V, 3.6 W
- PowerPC 750CXe .18um, 600 MHz, 1.8 V, 6 W
- PowerPC MGT560 .20um, 56MHz 2.7 V, .5 W (Performance=56MIPS)
- PowerPC 440GX, 800 MHz, 4.5 W
- PowerPC 970, 1.8 GHz, 1.3 V, 42 W
- PowerPC 7400e, 1.0 GHz, 1.6 V, 30 W
PowerPC is a RISC microprocessor architecture created by the 1991 Apple-IBM-Motorola alliance, known as AIM. Originally intended for workstations, PowerPC CPUs have since become popular embedded and high-performance processors as well. ...
- Thunderbird Athlon 750 MHz, 1.75 V, 43.8 W
- Thunderbird Athlon 800 MHz, 1.75 V, 45.5 W
- Thunderbird Athlon 850 MHz, 1.75 V, 47.92 W
- Thunderbird Athlon 900 MHz, 1.75 V, 50.7 W
- Thunderbird Athlon 950 MHz, 1.75 V, 52.5 W
- Thunderbird Athlon 1000 MHz, 1.75 V, 54.3 W
- Thunderbird Athlon 1400 MHz, 1.75 V, 73.5 W
Advanced Micro Devices, Inc. ...
Athlon is the brand name applied to a series of different x86 processors designed and manufactured by AMD. The original Athlon, or Athlon Classic, was the first seventh-generation x86 processor and, in a first, retained the initial performance lead it had over Intels competing processors for a significant...
The volt (symbol: V) is the SI derived unit of electric potential difference. ...
The watt (symbol: W) is the SI derived unit of power. ...
- Palomino Athlon XP 1900+, 1.75 V, 68.1 W
- Palomino Athlon XP 2000+, 1.75 V, 70.5 W
- Palomino Athlon XP 2100+, 1.75 V, 72 W
- Thoroughbred A Athlon XP 2200+, 1.65 V, 67.9 W
- Thoroughbred B Athlon XP 2200+, 1.65 V, 62.8 W
- Barton Athlon XP 2600+, 1.65 V, 68.3 W
- Barton Athlon XP 3200+, 1.65 V, 76.8 W
Athlon is the brand name applied to a series of different x86 processors designed and manufactured by AMD. The original Athlon, or Athlon Classic was the first seventh-generation x86 processor and, in a first, retained the initial performance lead it had over Intels competing processors for a significant...
- Newcastle Athlon 64 2800+ 512 KB, 1.50 V, 89 W
- Clawhammer Athlon 64 3400+ 1 MB, 1.50 V, 89 W
- Winchester Athlon 64 3500+ 512 KB, 1.40 V, 67 W
Jump to: navigation, search The Athlon 64 (codenamed ClawHammer, Newcastle, Winchester, Venice, and San Diego) represents AMDs entry into the consumer 64-bit microprocessor market, released on September 23, 2003. ...
- Athlon 64 FX-53 1 MB, 1.50 V, 89W
- Athlon 64 FX-55 1 MB, 1.50 V, 104W
Jump to: navigation, search The Athlon 64 (codenamed ClawHammer, Newcastle, Winchester, Venice, and San Diego) represents AMDs entry into the consumer 64-bit microprocessor market, released on September 23, 2003. ...
- Sempron 3100+ (Socket 754) 256 KB, 1.40 V, 62 W
Jump to: navigation, search Sempron 3000+ Sempron is AMDs newest low-end CPU, replacing the Duron processor and competing against Intels Celeron D processor. ...
- Pentium 4 3.06 GHz, 81.8 W
- Pentium 4 560J 3.6 Ghz, 115 W
Intel Corporation (NASDAQ: INTC) (founded 1968) is a U.S.-based multinational corporation that is best known for designing and manufacturing microprocessors and specialized integrated circuits. ...
Jump to: navigation, search Pentium 4 (with hyper-threading) brand logo The Pentium 4 is a seventh-generation x86 architecture microprocessor produced by Intel and is their first all-new CPU design, called the NetBurst architecture, since the Pentium Pro of 1995. ...
- Nehemiah VIA C3 1 GHz, 11.25 W
The VIA C3 is an x86 central processing unit for personal computers. ...
VIA Eden-N - Eden-N 533 MHz, 4 W
- Eden-N 800 MHz, 6 W
- Eden-N 1000 MHz, 7 W
Comparison of power consumption of some modern CPUs
 Download high resolution version (833x511, 28 KB)Graph made by User:Quadell File links The following pages link to this file: CPU electrical consumption Categories: GFDL images ...
GPUs
ATI
NVIDIA 8
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