CPUs

Intel Xeon E7458 vs Intel Xeon E7540 Full Specs

6 Cores
6 Threads
2.4GHz
6 Cores
12 Threads
2GHz
TDP
90W
TDP
105W
Bandwidth
-
Bandwidth
42.7GB/s
DDR3
Socket
Socket

6 Cores
6 Cores
6 Threads
12 Threads

Base Clock
2.4GHz
Base Clock
2GHz
Boost Clock
-
Boost Clock
2.26GHz
Overclocking
Locked
Overclocking
Locked

L1i
32KB
L1i
32KB
L1d
32KB
L1d
32KB
L2
9MB shared
L2
256KB
L3
16MB
L3
18MB

Type
-
Type
DDR3
Max Memory
-
Max Memory
2.05TB
ECC
-
ECC
Yes
Channels
-
Channels
4
Bus Width
-
Bus Width
256-bit
Speed
-
Speed
1333MT/s
Bandwidth
-
Bandwidth
42.7GB/s
Bandwidth Calculator
-
Bandwidth Calculator
Channels
Transfer Rate
··
42.7GB/s

TDP
90W
TDP
105W
T-Case
-
T-Case
64°C Max
Voltage Range
-
Voltage Range
-

Bus Type
FSB
Bus Type
QPI
Bus Config
64-bit
Bus Config
16-bit
Bus Speed
1.066GT/s
Bus Speed
6.4GT/s
Bus Bandwidth
8.5GB/s
Bus Bandwidth
12.8GB/s

Manufacturer
Manufacturer
ISA
x86-64
ISA
x86-64
Architecture
Architecture
Family
Family
Branding
Xeon 2006 branding
Branding
Xeon 2010 branding
Codename
Dunnington
-
Codename
Nehalem-EX
BecktonP-Core
Market Segment
Server
Market Segment
Server
Release Date
Sep 15, 2008
Release Date
Mar 30, 2010

Foundry
Intel
Foundry
Intel
Fabrication Node
45nm
Fabrication Node
45nm
Die Size
503mm²
Die Size
648mm²
Transistor Count
1.9 Billion
Transistor Count
2.3 Billion
Transistor Density
4 MTr/mm²
Transistor Density
4 MTr/mm²