• Thumbnail for Alpha 21264
    The Alpha 21264 is a RISC microprocessor developed by Digital Equipment Corporation launched on 19 October 1998. The 21264 implemented the Alpha instruction...
    18 KB (2,675 words) - 03:04, 31 July 2024
  • at the 11th Annual Microprocessor Forum, where it was described as an Alpha 21264 with a 1.5 MB 6-way set-associative on-die secondary cache, an integrated...
    15 KB (2,172 words) - 14:59, 11 August 2024
  • Thumbnail for DEC Alpha
    company, the 21164-based AlphaPC 164 and AlphaPC 164LX, the 21164PC-based AlphaPC 164SX and AlphaPC 164RX and the 21264-based AlphaPC 264DP. Several third...
    63 KB (6,361 words) - 22:04, 7 November 2024
  • Thumbnail for Alpha 21164
    Digital's flagship microprocessor. It was succeeded by the Alpha 21264 in 1998. First silicon of the Alpha 21164 was produced in February 1994, and the OpenVMS...
    22 KB (3,041 words) - 03:04, 31 July 2024
  • Thumbnail for Jim Keller (engineer)
    designing a number of processors, including the VAX 8800, the Alpha 21164 and the Alpha 21264 processors. Prior to DEC, he had worked at Harris Corporation...
    15 KB (1,135 words) - 02:01, 23 December 2024
  • Thumbnail for Branch predictor
    more] nondeterministic. Some superscalar processors (MIPS R8000, Alpha 21264, and Alpha 21464 (EV8)) fetch each line of instructions with a pointer to the...
    40 KB (4,762 words) - 04:55, 15 June 2024
  • Thumbnail for Socket A
    200 MHz front-side bus on Duron, XP and Sempron processors, based on the Alpha 21264 EV6 bus. Initially launched with 100 MHz FSB support in the earliest...
    8 KB (736 words) - 15:54, 29 November 2024
  • Thumbnail for Slot A
    originally developed by Digital Equipment Corporation (DEC) for its Alpha 21264 microprocessor. Slot A is mechanically compatible but electrically incompatible...
    4 KB (383 words) - 19:32, 28 June 2024
  • Thumbnail for CPU socket
    "LGA 4189 Socket and Hardware" (PDF). Hachman, Mark (February 2, 1999). "Alpha camp moves to "Slot B" connector to push further into workstations". EE...
    35 KB (733 words) - 12:38, 9 December 2024
  • entries only if they match the current process ID. For example, in the Alpha 21264, each TLB entry is tagged with an address space number (ASN), and only...
    24 KB (3,329 words) - 22:40, 1 December 2024
  • Thumbnail for AlphaServer
    Appendix D - 21264 (EV6) internal processor registers, 21272 (Tsunami/Typhoon) system support chipset registers, dual-port RAM registers AlphaServer ES40...
    29 KB (717 words) - 16:06, 24 November 2024
  • Raspberry Pi (Model B) clock × 1.00 5.6 Intel Itanium 2 clock × 1.49 8.3 Alpha 21264 clock × 1.99 11.1 VIA Centaur clock × 1.99 11.1 AMD K5/K6/K6-2/K6-III...
    10 KB (1,009 words) - 04:54, 25 November 2024
  • Thumbnail for List of AMD chipsets
    VP2/97 AMD-750 chipset AMD-751 1999 Athlon, Duron (Slot A, Socket A), Alpha 21264 100 (FSB) AMD-756, VIA-VT82C686A AGP 2×, SDRAM Irongate chipset family;...
    39 KB (2,482 words) - 22:52, 9 October 2024
  • DEC J-11 DEC V-11 MicroVAX 78032 CVAX Rigel Mariah NVAX Alpha 21064 Alpha 21164 Alpha 21264 Alpha 21364 StrongARM Vortex86 Emotion Engine Elbrus 2K (VLIW...
    10 KB (748 words) - 15:51, 15 November 2024
  • implements this ISA, the Alpha 21264, has 80 integer and 72 floating-point physical registers. There are, on an Alpha 21264 chip, 80 physically separate...
    29 KB (4,262 words) - 03:43, 28 November 2024
  • Thumbnail for ECC memory
    processors (EPYC, EPYC Embedded, Ryzen and Ryzen Threadripper), and the DEC Alpha 21264. As of 2006[update], EDC/ECC and ECC/ECC are the two most-common cache...
    30 KB (3,398 words) - 01:17, 19 December 2024
  • Thumbnail for Quadrics (company)
    Digital Equipment Corporation (DEC). The combination of Quadrics and Alpha 21264 (EV6) microprocessors proved very successful, and Digital/Compaq rapidly...
    12 KB (1,570 words) - 01:13, 18 December 2024
  • into mainstream personal computers. Since DEC Alpha gained out-of-order execution in 1998 (Alpha 21264), the top-performing out-of-order processor cores...
    37 KB (4,300 words) - 15:21, 6 December 2024
  • Graduate School of Management. He was a co-architect of the Alpha 21064 and Alpha 21264 microprocessors during his employment at DEC and also worked...
    5 KB (459 words) - 20:02, 15 September 2024
  • List of AMD FX microprocessors Charles R. Moore (computer engineer) Alpha 21264 K10 (microarchitecture) Bobcat (microarchitecture) Opteron Piledriver...
    36 KB (3,748 words) - 19:04, 19 September 2024
  • Thumbnail for 64-bit computing
    address space (8 TB) and 40 bits of physical memory address space (1 TB). Alpha 21264 supported user-configurable 43 or 48 bits of virtual memory address space...
    58 KB (7,245 words) - 15:34, 18 December 2024
  • Thumbnail for History of computing hardware (1960s–present)
    750, RS64, ESA/390 G4; Intel Pentium II; Sun UltraSPARC IIs 1998 DEC Alpha 21264; HAL Computer SPARC64 III; Hewlett Packard PA-8500; IBM POWER3, RS64-II...
    53 KB (4,957 words) - 17:32, 21 November 2024
  • Thumbnail for POWER3
    at 200 MHz. It competed with the Digital Equipment Corporation (DEC) Alpha 21264 and the Hewlett-Packard (HP) PA-8500. The POWER3 was based on the PowerPC...
    9 KB (1,134 words) - 21:39, 30 December 2022
  • Thumbnail for Athlon
    design, again like previous post-5x86 AMD CPUs. The Athlon utilizes the Alpha 21264's EV6 bus architecture with double data rate (DDR) technology.[citation...
    50 KB (5,116 words) - 21:46, 23 December 2024
  • kinds of predictors (e.g., the store-to-load bypass predictor in the DEC Alpha 21264), and various specialized predictors are likely to flourish in future...
    96 KB (13,298 words) - 19:32, 31 October 2024
  • requirement of memory barriers for readers and writers. On Alpha hardware (like multiprocessor Alpha 21264 systems) cache line invalidations sent to other processors...
    30 KB (3,428 words) - 23:15, 4 August 2024
  • Thumbnail for Microprocessor chronology
    166–233 MHz 32 350 nm 8.8 1998 RS64-II IBM 262 MHz 64 350 nm 12.5 1998 Alpha 21264 DEC 450–600 MHz 64 350 nm 15.2 1998 MIPS R12000 SGI 270–400 MHz 64 250–180...
    52 KB (2,641 words) - 19:01, 19 November 2024
  • microprocessor (that is, excluding the cache). For example, the last DEC Alpha chip uses 90% of its transistors for cache. A graphics processing unit (GPU)...
    229 KB (10,139 words) - 06:43, 1 December 2024
  • Thumbnail for UltraSPARC III
    1999, and it would have competed with Digital Equipment Corporation's Alpha 21264 and Intel's Itanium (Merced). This was not to be the case as it was delayed...
    9 KB (1,238 words) - 17:30, 6 February 2024
  • forces multiple copies of a register file, one for each datapath. The Alpha 21264 (EV6), for instance, was the first large micro-architecture to implement...
    27 KB (4,271 words) - 16:55, 14 December 2024