|
PROCESSOR
|
SCORPIO
|
Intel
Core i7
|
AMD
Opteron
|
Tilera TILE64
|
Oracle
T5
|
Intel
Xeon E7
|
|---|---|---|---|---|---|---|
|
Clock Frequency
|
1 GHz (833 MHz
post-layout)
|
2-3.3 GHz
|
2.1-3.6 GHz
|
750 MHz
|
3.6 GHz
|
2.1-2.7 GHz
|
| Power Supply | 1.1 V | 1.0 V | 1.0 V | 1.0 V | 1.0 V | |
| Power Consumption | 28.8 W | 45-130 W | 115-140 W | 15-22 W | 130 W | |
| Lithography | 45nm SOI | 45nm | 32nm SOI | 90nm | 28nm | 32nm |
| Core Count | 36 | 4-8 | 4-16 | 64 | 16 | 6-10 |
|
ISA
|
Power
|
x86
|
x86
|
MIPS-derived
VLIW
|
SPARC
|
x86
|
| Cache Hierarchy | ||||||
| L1D | 16 KB private | 32 KB private | 16 KB private | 8 KB private | 16 KB private | 32 KB private |
|
L1I
|
16 KB private
|
32 KB private
|
64 KB shared
among 2 cores
|
8 KB private
|
16 KB private
|
32 KB private
|
|
L2
|
128 KB private
|
256 KB private
|
2 MB shared
among 2 cores
|
64 KB private
|
128 KB private
|
256 KB private
|
| L3 | N/A | 8 MB shared | 16 MB shared | N/A | 8 MB | 18-30 MB shared |
| Consistency Model | Sequential Consistency | Processor | Processor | Relaxed | Relaxed | Processor |
|
Coherency
|
Snoopy
|
Snoopy
|
Broadcast-based
directory (HT)
|
Directory
|
Directory
|
Snoopy
|
|
Interconnect
|
6 X 6 Mesh
|
Point-to-Point (QPI)
|
Point-to-Point
(HyperTransport)
|
5 8 X 8 Meshes
|
8 X 9 Crossbar
|
Ring
|