CPU DB

DEC Alpha 21064

EV4, 166.0 MHz

Specifications
Designer DEC
Family Alpha 21064
Model
Code Name EV4
Clock [MHz] 166.0
Max Clock (Turbo) [MHz]
Physical Details
Voltage (Nom.) [V] 3.30
TDP [W] 30.0
Die Size [mm²] 234
Transistor [M] 1.68
Architecture
Data Path Width 64
Cores per Chip 1
Threads per Core 1
Microarchitecture
µarch EV4
ISA Alpha
FP Pipe Stages 10
Int Pipe Stages 7
Cache (on-chip)
L1 Unified Cache
L1 Instruction Cache 8
L1 Data Cache 8
L2 Cache
L3 Cache
Cache (off-chip)
L1 Unified Cache
L1 Instruction Cache
L1 Data Cache
L2 Cache
L3 Cache
Process Technology
Fabricated By DEC
Process CMOS-4
Technology CMOS
Feature Size [μm] 0.75
Channel Length [μm] 0.75
Metal Layers 3
Metal Type
FO4 Delay [ps] 270.0

    Die Photo

    151

SpecInt1992

Espresso Li Eqntott Compress Sc Gcc
96.6 93.4 159.4 58.1 264.9 69.6 source
100.0 89.0 154.9 55.6 202.2 65.0 source
67.6 44.3 148.6 42.8 149.5 39.1 source

SpecFp1992

Spice2g6 Doduc Mdljdp2 Wave5 Tomcatv Ora Alvinn Ear Mdljsp2 Swm256 Su2cor Hydro2d Nasa7 Fpppp
64.6 106.3 127.3 100.8 103.9 125.5 313.9 488.5 81.9 65.4 156.9 183.2 145.5 155.9 source
64.1 106.3 128.4 97.9 104.3 129.7 300.4 396.6 64.7 64.9 154.5 170.4 143.2 152.1 source
49.5 80.2 112.5 50.5 49.8 95.3 186.2 250.0 70.7 26.5 93.3 132.4 79.3 73.5 source

SpecInt1995

Go M88ksim Gcc Compress Li Ijpeg Perl Vortex
3.4 2.6 2.1 2.3 2.4 2.7 2.5 2.0 source
3.3 2.3 1.9 2.3 2.3 2.5 2.2 1.9 source

SpecFp1995

Tomcatv Swim Su2cor Hydro2d Mgrid Applu Turb3d Apsi Fpppp Wave5
4.4 5.8 2.1 1.8 2.7 2.0 3.5 3.4 5.6 4.4 source
4.3 5.7 1.8 1.7 3.3 2.1 3.2 3.5 5.2 4.1 source