IBM PowerPC 7400 400MHz vs IBM 2x PowerPC 7455 866MHz

IBM PowerPC 7400 400MHz
IBM 2x PowerPC 7455 866MHz
1 Core
1 Thread
400MHz Clock
2 Cores
2 Threads
866MHz Clock
Socket
CBGA 360
Socket
CBGA 483
iGPU
No GPU
iGPU
No GPU
  • 29% lower vs 2x PowerPC 7455 866MHz
  • 40% higher vs PowerPC 7400 400MHz
PowerPC 7400 400MHz - 15W
x1
2x PowerPC 7455 866MHz - 21W
x1.4
Manufacturer
IBM
Manufacturer
IBM
Architecture
G4
Architecture
G4
Family
G4
Family
G4
Instruction Set (ISA)
PowerPC
Instruction Set (ISA)
PowerPC
Market Segment
Desktop
Market Segment
Desktop
Release Date
8/31/1999
Release Date
1/1/2003
Foundry
Motorola
Foundry
Motorola
Node
200nm
Node
180nm
Die Size
83 mm²
Die Size
106 mm²
Transistor Count
11 Million
Transistor Count
33 Million
1 Core
2 Cores
1 Thread
2 Threads
400MHz
866MHz
Overclocking
Locked
Overclocking
Locked
Type
FSB
Type
FSB
Clock
100MHz
Clock
133MHz
Data Rate
Single
Data Rate
Single
Transfer Rate
100MT/s
Transfer Rate
133MT/s
Width
64Bit
Width
64Bit
Bandwidth
0.8GB/s
Bandwidth
1.06GB/s
L1 Instruction
32KB/Core
4-way set associative
L1 Instruction
32KB/Core
4-way set associative
L1 Data
32KB/Core
4-way set associative
L1 Data
32KB/Core
4-way set associative
L2
512KB/Core
8-way set associative
L2
256KB/Core
8-way set associative
-
-
-
L3
2MB Shared
8-way set associative
No Memory Controller
No Memory Controller
TDP
15W
TDP
21W
No PCIe
No PCIe
No GPU
No GPU
No NPU
No NPU
No Cellular
No Cellular
Change Comparison