User`s manual

1.2 EB164 Summary
Table 1–2 EB164 Features Summary
Characteristic Description
Operating Systems
Supported operating
systems
Microsoft Windows NT. For information on Digital UNIX
operating system support, see your local distributor or your
Digital sales representative.
System Characteristics
CPU and clock speed Digital Semiconductor 21164 Alpha microprocessor at 266,
300, or 333 MHz
CPU upgradable ZIF socket for 21164 upgrade
Instruction issue Up to 4 instructions issued per clock cycle
Word size 64 bits
Address size 40-bit physical address, 43-bit virtual address
Floating-point format VAX (F and G) and IEEE (S and T) data types
Memory (DRAM)
1
Minimum DRAM 32MB plus ECC
Maximum DRAM 512MB plus ECC
Memory (ROM) 1MB flash ROM
External L2 cache Configurable for 2MB, 4MB, 8MB (128-bit data)
Memory bus width 256 bits plus ECC
Performance metrics The EB164 performance is listed here:
21164 Bcache SPECint92 SPECfp92
266 MHZ 2MB, 10ns 300.6 417.4
300 MHZ 2MB, 10ns 335
(estimated)
460
(estimated)
333 MHZ 2MB, 10ns 365.2 518
Graphics
Graphics options Refer to the Microsoft Hardware Compatibility List for
Windows NT to determine which graphics cards are
supported. See Section B.4 for information on how to obtain
the listing.
1
Minimum DRAM recommended: 32MB for Windows NT and Digital UNIX.
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Introduction to the EB164 1–7