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Encyclopedia > HyperMemory

HyperMemory is ATI Technologies' method of using a PC's main system RAM as part of or all of the video card's framebuffer memory on their line of Radeon video cards and motherboard chipsets. It relies on new fast data transfer mechanisms within PCI Express. The current version of the article or section is written like a magazine article; it does not use the direct, balanced tone expected of an encyclopedia. ... Random access memory (usually known by its acronym, RAM) is a type of data storage used in computers. ... The framebuffer is a part of RAM in a computer allocated to hold the graphics information for one frame or picture. ... ATI Radeon is a brand of graphics processing units (GPU) that has been manufactured by ATI Technologies since 2000 and the successor to their Rage line. ... A motherboard is the central or primary circuit board making up a complex electronic system, such as a modern computer. ... PCI Express (formerly known as 3GIO for 3rd Generation I/O, not to be mistaken with PCI-X) is an implementation of the PCI computer bus that uses existing PCI programming concepts and communications standards, but bases it on a much faster serial communications system. ...

However, to make up for the inevitably slower system RAM with a video card, a small low-bandwidth local framebuffer is usually added to the video card itself. This can be noted by the one or two small RAM chips on these cards, which usually have a 32-bit or 64-bit bus to the GPU. This small local memory caches the most often needed data for quicker access, somewhat remedying the inherently high-latency connection to system RAM. GPU may stand for: Graphics processing unit, a special stream processor used in computer graphics hardware Gosudarstvennoye Politicheskoye Upravlenie (Главное Политическое Управление, or Main Political Directorate) of the Red Army, responsible for troops morale and propaganda. ... RAM Latency is the amount of wait time that a computer experiences when trying to access data in its RAM. RAM latency is measured in front side bus clock cycles. ...

The local and system memory areas are not noticeably separate to the user and often HyperMemory solutions are advertised as having as much as 512 MB RAM when this is actually referring to the potential use of system RAM.

HyperMemory offers significant cost reduction to low-end video cards because of the reduction in trace complexity on the video card PCB, and a reduction in the amount of RAM needed on the card. The solution offers excellent performance for 2D acceleration tasks while also maintaining adequate memory speed capable of playing some modern 3D game titles with reduced quality. Part of a 1983 Sinclair ZX Spectrum computer board. ...

Video cards implemented with HyperMemory usually bore the HM or LE suffix, for further details, see ATI Video Card Suffixes article. This article or section does not cite any references or sources. ...

See also

NVIDIAs TurboCache technology is a method of allowing more framebuffer memory on select graphics cards by using both video memory and system memory by taking advantage of the high bandwidth provided by the PCI-Express bus. ... NVIDIA Corporation (NASDAQ: NVDA) (pronounced ) is an American corporation specializing in the manufacture of GPU technologies for video cards, graphics cards, workstations, desktop computers, handhelds and more. ...

External links

  • ATI's HyperMemory Page
  • Gasior, Geoff. A new battle in budget graphics: ATI's HyperMemory and NVIDIA's TurboCache collide at TechReport.Com, June 2, 2005.
ATI graphics processors
2D Chips: Mach
Direct3D 3-6: Rage
Direct3D 7.0: Radeon R100
Direct3D 8.0: Radeon R200
Direct3D 9.0: Radeon R300R420R520
Direct3D 10: Radeon R600R700
Other ATI technologies
Chipsets: IGP3xx9000/9100 IGPXpress 200Xpress 3200580X690G790X
Multi-GPU: Multi-renderingCrossFire
Workstations and HPC: FireGLFireMV • FireStream
Consumer electronics: All-In-Wonder • ImageonXilleon
Misc: AVIVOCTMHLSL2GLSLHyperMemory • PowerPlay • TruFormUVD
Game console GPUs: Flipper (GameCube) • Xenos (Xbox 360) • Hollywood (Wii)



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