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3DNow! was developed at a time when 3D graphics were becoming mainstream in PC multimedia and games. Realtime display of 3D graphics depended heavily on the host CPU's floating-point unit (FPU) to perform floating-point calculations, a task in which AMD's K6 processor was easily outperformed by its competitor, the Intel Pentium II.
AMD K6-2 266 MHz. The K6-2 is an x86 microprocessor introduced by AMD on May 28, 1998, [2] and available in speeds ranging from 266 to 550 MHz.An enhancement of the original K6, the K6-2 introduced AMD's 3DNow!
Intel's first IA-32 SIMD effort was the MMX instruction set. MMX had two main problems: it re-used existing x87 floating-point registers making the CPUs unable to work on both floating-point and SIMD data at the same time, and it only worked on integers. SSE floating-point instructions operate on a new independent register set, the XMM ...
Pentium II processor with MMX technology. MMX defines eight processor registers, named MM0 through MM7, and operations that operate on them.Each register is 64 bits wide and can be used to hold either 64-bit integers, or multiple smaller integers in a "packed" format: one instruction can then be applied to two 32-bit integers, four 16-bit integers, or eight 8-bit integers at once.
MMX, Enhanced 3DNow!, SSE, SSE2, SSE3, SSE4a, ABM, NX bit, AMD64, Cool'n'Quiet, AMD-V; GPU: TeraScale 2 (Evergreen); all A and E series models feature Redwood-class integrated graphics on die (BeaverCreek for the dual-core variants and WinterPark for the quad-core variants). Sempron and Athlon models exclude integrated graphics. [24]
Intel retained the lead in 3D gaming performance. Many popular first person games at the time were specifically tuned to extract maximum performance from Intel's pipelined floating point unit in drawing their 3D environments. Since the K6-III inherits the same floating point unit as the K6-2 (low latency but not pipelined), unless the game was ...
Next month, in late June 1999, AMD's Athlon processor was released which featured the extended MMX instructions, but not SSE. Today, these extended MMX instructions are notable as being the common subset of MMX extensions that work across both AMD Athlon and SSE-capable Intel processors.
MMX (instruction set), a single-instruction, multiple-data instruction set designed by Intel MMX Mineração , a Brazilian mining company Martian Moons eXploration , a Japanese mission to retrieve samples from Mars' moon Phobos