Intel Gma 3000 Dynamic Video Memory Technology 4.0

• Intel Gma 3000 Dynamic Video Memory Technology 4.0 Specs
• Intel Gma 3000 Dynamic Video Memory Technology 4.0

Intel Gma 3000 Dynamic Video Memory Technology 4.0 Specs

Many graphic-intensive applications (especially games) require a minimum amount of video memory in order to operate correctly (or even to run at all). So how much video memory does an Intel® chipset-based system with 'integrated graphics' have?

The answer: it depends. The amount of video memory is dependent upon the amount of pre-allocated memory set for your system plus something called Dynamic Video Memory Technology (DVMT). DVMT, as its name implies, dynamically allocates system memory for use as video memory to ensure the most efficient use of available resources for maximum 2D/3D graphics performance. The amount of video memory allocated depends upon the amount requested by the operating system. When the memory is no longer required, it is returned to the operating system for use by other applications or system functions.

DVMT allocates memory based on system needs. Some newer systems have an option in the system BIOS to adjust the amount of memory available for DVMT. Memory can be allocated up to the maximum limit set by the graphics driver. The maximum limit of video memory allocated by DVMT depends on your specific Intel chipset and the version of the graphics driver installed. Specific information for each integrated graphics chipset can be found via the links below. DVMT White Paper - Mobile Intel® 945GM Express Chipset Family.

• Free Download HP Compaq dc7700 Intel Video Driver 6.14.10 (Graphics Board). 1 Max Supported Qty: 1 Processor Main Features: Intel Extended Memory 64 Technology, Intel Execute Disable Bit, Enhanced. Controller Type: Integrated Graphics Processor / Vendor: Intel GMA 3000 Video Memory: Dynamic Video Memory Technology 4.0 Audio output Type.
• Processor Number. Intel GMA 3000 Dynamic Video Memory Technology 4.0.

Intel Gma 3000 Dynamic Video Memory Technology 4.0

HP Compaq dc5700 Microtower Series Specs. Intel GMA 3000 Dynamic Video Memory Technology 4.0 Video Interfaces VGA. Intel GMA 3000 Graphics Processor Series Intel GMA.

DVMT White Paper - Intel® 945G Express Chipset Family. DVMT White Paper - Intel® 82865G graphics controller (Intel® 865 chipset family). DVMT White Paper - Intel® 5 GM/GME graphics controllers (Intel® 852/855 chipset families). DVMT White Paper - Intel® 82845G graphics controller (Intel® 845 chipset family). DVMT White Paper - Intel® 82815 graphics controller (Intel® 815 chipset family). DVMT White Paper - Intel® 82810 graphics controller (Intel® 810 chipset family). Often an application needs additional memory for the temporary storage of data.

For example, the C programming language allows the programmer to use the MALLOC (memory allocate) function to grab a chunk of memory suitable for the applications needs. Failure to release the memory after it is used by using the FREE function can result in problems. It is called dynamic memory allocation because the memory is allocated at run-time, as needed.

Unlike variables created within functions - the memory is not allocated on the processor stack, instead, when using MALLOC or the 'new' keyword, memory is allocated in the applications virtual address space. There is no such thing as dynamic memory, but we often use the termto mean non-static memory. Static memory is where all constantvariables, global variables and static variables are allocated instatic memory.

Static memory is a contiguous block of memory offixed length divided into two sections: ini tialised memory anduninitialised memory. Initialised variables and constants areallocated to the initialised section and are stored as a bitmapimage in the executable itself. Uninitialised variables areallocated in the uninitialised section which is typically a blockof zero-initialised memory. No bitmap image is required foruninitialised memory, only its length need be stored in theexecutable. The compiler can determine the amount of memoryrequired for each constant and variable. Non-static memory is essentially all other memory used by aprogram.

Every thread has its own call stack allocated as eachthread is instantiated and released as each thread is destroyed.All stacks are fixed-length (determined at design time). The callstack is used to store local variables, automatic variables andtemporary variables, as well as to implement exception handling. The heap (or free store) is essentially all other memory availableto the program and is used to instantiate all anonymous variables.The heap is what we generally mean by dynamic memory becauseanonymous variables are created and destroyed as and when they arerequired at runtime. Since we cannot refer to an anonymous variableby name (being anonymous means they have no name), we must refer tothem solely by their address. This means we must use pointervariables to store those addresses. If we have a large number ofanonymous variables of the same type to keep track of, then wetypically allocate them in contiguous memory and maintain a singlepointer to the start of the allocation. This single pointer allowsus to access the memory just as we would a built-in array.

We alsoneed to keep track of how many variables (elements) are allocatedin the array to avoid buffer overruns. This allows us to easilyallocate and release any number of anonymous variables at runtime. However, in C we rarely use 'dynamic memory' directly. Althoughnecessary in C programming, C programmers prefer to use resourcehandles or 'smart' pointers instead. In this way the languageitself handles the underlying memory allocations for us, ensuringthat memory is allocated and released in a timely manner, and thusminimising the risk of creating resource leaks - a common problemwith low-level C programming.

The C std::vector is an example ofa resource handle and most non-trivial C programs will includeone or more std::vector variablesto keep track of any number of pointers to type T objects.