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CPU
Intel

Intel Xeon E5645

Processor Released

CPU cores
6
CPU threads
12
Maximum boost clock
2.67 GHz
Thermal design power
80 W

Graphics & compute benchmarks

Archived cohort medians

GFXBench, GLBenchmark and CompuBench results retain the tested system, API, operating system and resolution. Offscreen tests fix the render resolution; onscreen results also reflect the display workload. These historical submissions do not establish performance in current games.

Bitcoin MiningOS X / OpenCL / compute · mHash/s

Higher is better.

Intel Xeon E5645

11.09* mHash/s

Intel(R) Xeon(R) CPU E5645

Host configuration not reported.

11.11* mHash/s

Apple Mac Pro (Mid 2012)

Intel(R) Xeon(R) CPU E5645

Bitcoin MiningWindows / OpenCL / compute · mHash/s

Higher is better.

Intel Xeon E5645

28.29* mHash/s

Intel(R) Xeon(R) CPU E5645

Host configuration not reported.

Face DetectionOS X / OpenCL / compute · mPixels/s

Higher is better.

Intel Xeon E5645

2.31* mPixels/s

Intel(R) Xeon(R) CPU E5645

Host configuration not reported.

2.36* mPixels/s

Apple Mac Pro (Mid 2012)

Intel(R) Xeon(R) CPU E5645

Face DetectionWindows / OpenCL / compute · mPixels/s

Higher is better.

Intel Xeon E5645

22.49* mPixels/s

Intel(R) Xeon(R) CPU E5645

Host configuration not reported.

Ocean Surface SimulationOS X / OpenCL / compute · fps

Higher is better.

Intel Xeon E5645

49.22* fps

Intel(R) Xeon(R) CPU E5645

Host configuration not reported.

48.89* fps

Apple Mac Pro (Mid 2012)

Intel(R) Xeon(R) CPU E5645

Ocean Surface SimulationWindows / OpenCL / compute · fps

Higher is better.

Intel Xeon E5645

118.32* fps

Intel(R) Xeon(R) CPU E5645

Host configuration not reported.

Particle Simulation - 64kOS X / OpenCL / compute · mInteraction/s

Higher is better.

Intel Xeon E5645

68.52* mInteraction/s

Intel(R) Xeon(R) CPU E5645

Host configuration not reported.

68.09* mInteraction/s

Apple Mac Pro (Mid 2012)

Intel(R) Xeon(R) CPU E5645

Particle Simulation - 64kWindows / OpenCL / compute · mInteraction/s

Higher is better.

Intel Xeon E5645

56.18* mInteraction/s

Intel(R) Xeon(R) CPU E5645

Host configuration not reported.

T-RexOS X / OpenCL / compute · fps

Higher is better.

Intel Xeon E5645

0.62* fps

Intel(R) Xeon(R) CPU E5645

Host configuration not reported.

0.64* fps

Apple Mac Pro (Mid 2012)

Intel(R) Xeon(R) CPU E5645

T-RexWindows / OpenCL / compute · fps

Higher is better.

Intel Xeon E5645

1.12* fps

Intel(R) Xeon(R) CPU E5645

Host configuration not reported.

TV-L1 Optical FlowOS X / OpenCL / compute · mPixels/s

Higher is better.

Intel Xeon E5645

1.20* mPixels/s

Intel(R) Xeon(R) CPU E5645

Host configuration not reported.

1.25* mPixels/s

Apple Mac Pro (Mid 2012)

Intel(R) Xeon(R) CPU E5645

TV-L1 Optical FlowWindows / OpenCL / compute · mPixels/s

Higher is better.

Intel Xeon E5645

1.54* mPixels/s

Intel(R) Xeon(R) CPU E5645

Host configuration not reported.

Video CompositionOS X / OpenCL / compute · fps

Higher is better.

Intel Xeon E5645

3.66* fps

Intel(R) Xeon(R) CPU E5645

Host configuration not reported.

3.64* fps

Apple Mac Pro (Mid 2012)

Intel(R) Xeon(R) CPU E5645

Video CompositionWindows / OpenCL / compute · fps

Higher is better.

Intel Xeon E5645

4.91* fps

Intel(R) Xeon(R) CPU E5645

Host configuration not reported.

Median results, not the best run. Sample counts and individual test dates are unreported. Different systems using the same GPU remain separate configurations.

Benchmark results

  • PassMark · version unreported · cpuMark4,955*Platform unreported Compare results
  • PassMark · version unreported · threadMark1,147*Platform unreported Compare results
  • PassMark CPU Mark · version unreported · CPU Mark4,915* pointsPlatform unreported Compare results
  • Reported score · version unreported · mark6,477*Platform unreported Compare results

Processing & platform

CPU cores
6
CPU threads
12
Base clock
2.4 GHz
CPU reference clock
133 MHz*
Maximum supported memory bandwidth
32 GB/s*
Reported CPU clock
2.4 GHz*
Maximum boost clock
2.67 GHz
L3 cache
12 MB
Socket / package
LGA 1366
Process node
32 nm
Reported chip die area
239 mm²*
Chip/package TDP
80 W*
Transistors
1,170 million*

Cache hierarchy

  • L3 / total
    Level
    L3
    Scope
    total
    Size
    12 MB
  • Reported cache*
    Size
    12 MB*
    Level
    Reported cache (level unstated)*
    Scope
    Intel® Smart Cache*

Compatible sockets

  • LGA 1366

Memory & storage

Memory channels
3
Video memory type
DDR3 800/1066/1333*

Supported memory

  • DDR3-1333
    Technology
    DDR3
    Transfer rate
    1,333 MT/s
  • DDR3 800/1066/1333*

CPU memory support

  • DDR3-800
    Variant / details
    Manufacturer CPU memory-controller support; system and module configuration may limit operation.
    Technology
    DDR3
    Transfer rate
    800 MT/s
  • DDR3-1066
    Variant / details
    Manufacturer CPU memory-controller support; system and module configuration may limit operation.
    Technology
    DDR3
    Transfer rate
    1,066 MT/s
  • DDR3-1333
    Variant / details
    Manufacturer CPU memory-controller support; system and module configuration may limit operation.
    Technology
    DDR3
    Transfer rate
    1,333 MT/s

Power specifications

Thermal design power
80 W

System configuration

Detailed specifications

Specifications 1 · 11 fields
Maximum turbo frequency
2.67* GHz
Scope and conditions
native_context
Clock scope
Maximum turbo declaration; not measured or sustained all-core frequency*
Codename
Westmere-EP*
Processor model
E5645*
Full processor designation
Intel(R) Xeon(R) CPU E5645 @ 2.40*
Processor family
Intel Xeon E5/E3*
Launch year
precision
year*
text
2010*
Declared memory capacity
0.288* TB
Scope and conditions
native_context
Capacity unit base
Not independently established*
CPU cores
6*
L3 cache
12* MB
Scope and conditions
native_context
Capacity unit base
Not independently established*
Thermal design power declaration
80* W
CPU threads
12*
Specifications 2 · 30 fields
Product Collection
Legacy Intel® Xeon® Processors*
Processor Base Frequency
2.4* GHz
Max Turbo Frequency
2.67* GHz
Cache
12 MB SmartCache*
Bus Speed
5.86 GT/s QPI*
TDP
80* W
Embedded Options Available
Yes*
Conflict Free
Yes*
Max Memory Size
288* GB
Memory Types
DDR3 800/1066/1333*
Max nb of Memory Channels
3*
Vertical Segment
Server*
Max Memory Bandwidth
32* GB/s
ECC Memory Supported
Yes*
Processor Number
E5645*
T
76.2°C*
Intel Hyper Threading Technology
Yes*
Intel Virtualization Technology VTx
Yes*
Intel 64
Yes*
Status
Launched*
Instruction Set
64-bit*
Instruction Set Extensions
SSE4.2*
Idle States
Yes*
Thermal Monitoring Technologies
No*
Execute Disable Bit
Yes*
Launch Date
Q1'10*
Lithography
32* nm
Recommended Customer Price
$525.00 - $554.00*
nb of Cores
6*
nb of Threads
12*
Specifications 3 · 9 fields
Release
Mar 16th, 2010*
Name
Xeon E5645*
Codename
Westmere-EP*
Cores
6 / 12*
Clock
2.4 to 2.666 GHz*
Socket
Socket 1366*
Process
32* nm
L3 Cache
12MB*
TDP
80* W
Specifications 4 · 24 fields
name
Intel Xeon E5645 @ 2.40GHz*
name
Intel Xeon E5645 @ 2.40GHz*
cores
6*
cores
6*
logicals
2*
logicals
2*
samples
56*
samples
84*
price
104*
price
52*
tdp
80*
tdp
80*
date
2011-04-01*
date
2011-04-01*
socket
LGA1366*
socket
LGA1366*
category
Server*
category
Server*
speed
2,400*
speed
2,400*
turbo
2,670*
turbo
2,670*
cpuCount
1*
cpuCount
2*
Specifications 5 · 30 fields
name
Xeon E5645*
Release Date
Mar 16th, 2010*
Part#
SLBWZ*
Frequency
2.4* GHz
Turbo Clock
up to 2.666 GHz*
Base Clock
133* MHz
Multiplier
18.0x*
Multiplier Unlocked
No*
Voltage
1.35* V
Codename
Westmere-EP*
Socket
Intel Socket 1366*
Generation
Xeon (Westmere-EP)*
Memory Support
DDR3*
ECC Memory
Yes*
# of Cores
6*
# of Threads
12*
SMP # CPUs
2*
Cache L1
64 KB (per core)*
Cache L2
256 KB (per core)*
Features
MMX, SSE, SSE2, SSE3, SSSE3, SSE4.2, Intel 64, HTT, EIST, XD-Bit, VT-x, TXT, AES-NI, 5.86GT/s QPI*
Foundry
Intel*
Memory Bus
Triple-channel*
PCI-Express
Gen 2*
Process Size
32* nm
Cache L3
12 MB (shared)*
Transistors
1,170 million*
Die Size
239* mm²
Package
FC-LGA10*
Market
Server/Workstation*
Production Status
End-of-life*
Specifications 6 · 4 fields
brand
Intel*
brand
Intel*
name
Intel Xeon E5645 @ 2.40GHz*
name
Intel Xeon E5645 @ 2.40GHz*
Specifications 7 · 10 fields
Foundry
Intel*
Vendor
Intel*
Product
Intel Xeon E5645*
Type
CPU*
Release Date
2010-03-16*
Process Size (nm)
32* nm
TDP (W)
80* W
Die Size (mm^2)
239* mm²
Transistors (million)
1,170*
Freq (MHz)
2,400* MHz
Specifications 8 · 20 fields
turbo frequency
2,670*
cache size
12,288*
tdp
80*
socket
FCLGA1366*
memory type
DDR3 800/1066/1333*
cores
6*
manufacturer Processor benchmark result
intel*
vertical segment
Server*
max memory size
301,989,888*
status
Discontinued*
max temp
76.2*
package size
42.5mm X 45mm*
threads
12*
name
Intel Xeon E5645*
rating Processor benchmark result
4,915*
processor number
E5645*
launch date
2010-02-01*
lithography
32*
bus speed
5.86*
base frequency
2,400*
Specifications 9 · 43 fields
Recommended Customer Price
$554.00*
Scope and conditions
source_native_row_context
Price scope
Historical source recommendation; not a current retail offer. The original currency notation is retained.*
Total Cores
6*
Total Threads
12*
Max Turbo Frequency
2.67* GHz
Processor Base Frequency
2.4* GHz
Cache
12.0* MB
Scope and conditions
source_native_row_context
Cache description
Intel® Smart Cache*
Original declaration
12 MB Intel® Smart Cache*
Bus Speed
5.86* GT/s
TDP
80* W
# of QPI Links
2*
Marketing Status
Discontinued*
Launch Date
Q1'10*
Servicing Status
End of Servicing Lifetime*
Embedded Options Available
Yes*
Max Memory Size (dependent on memory type)
288* GB
Memory Types
DDR3 800/1066/1333*
Max # of Memory Channels
3*
Max Memory Bandwidth
32* GB/s
Physical Address Extensions
40-bit*
ECC Memory Supported ‡
Yes*
Sockets Supported
FCLGA1366 | LGA1366*
Max CPU Configuration
2*
Package Size
42.5mm X 45mm*
Product Collection
Legacy Intel® Xeon® Processors*
TCASE
76.2* °C
Intel® Turbo Boost Technology ‡
1.0*
Intel® Hyper-Threading Technology ‡
Yes*
Intel® 64 ‡
Yes*
Instruction Set
64-bit*
Vertical Segment
Server*
Instruction Set Extensions
Intel® SSE4.2*
Idle States
Yes*
Enhanced Intel SpeedStep® Technology
Yes*
Intel® Demand Based Switching
Yes*
Thermal Monitoring Technologies
No*
Processor Number
E5645*
Intel® AES New Instructions
Yes*
Intel® Trusted Execution Technology ‡
Yes*
Execute Disable Bit ‡
Yes*
Intel® Virtualization Technology (VT-x) ‡
Yes*
Lithography
32* nm
Intel® Virtualization Technology for Directed I/O (VT-d) ‡
Yes*
Intel® VT-x with Extended Page Tables (EPT) ‡
Yes*
Use Conditions
Communications*
Specifications 10 · 11 fields
name
Intel Xeon E5645 @ 2.40GHz*
socket
LGA1366*
category
Server*
price
$239.95*
mark
6,477*
value
27*
single thread
1,104*
single thread value
4.6*
tdp
80*
powerperf
80*
testdate
Apr 2011*
Specifications 11 · 12 fields
cpuName
Intel Xeon E5645 @ 2.40GHz*
Scope and conditions
benchmark_context
suite
PassMark*
test_configuration_verified
No*
comparable
No*
testDate
2,011*
Scope and conditions
benchmark_context
suite
PassMark*
test_configuration_verified
No*
comparable
No*
socket
LGA1366*
Scope and conditions
benchmark_context
suite
PassMark*
test_configuration_verified
No*
comparable
No*
category
Server*
Scope and conditions
benchmark_context
suite
PassMark*
test_configuration_verified
No*
comparable
No*
price
52*
Scope and conditions
benchmark_context
suite
PassMark*
test_configuration_verified
No*
comparable
No*
cpuMark
4,955*
Scope and conditions
benchmark_context
suite
PassMark*
test_configuration_verified
No*
comparable
No*
cpuValue
95.29*
Scope and conditions
benchmark_context
suite
PassMark*
test_configuration_verified
No*
comparable
No*
threadMark
1,147*
Scope and conditions
benchmark_context
suite
PassMark*
test_configuration_verified
No*
comparable
No*
threadValue
22.06*
Scope and conditions
benchmark_context
suite
PassMark*
test_configuration_verified
No*
comparable
No*
TDP
80*
Scope and conditions
benchmark_context
suite
PassMark*
test_configuration_verified
No*
comparable
No*
powerPerf
61.94*
Scope and conditions
benchmark_context
suite
PassMark*
test_configuration_verified
No*
comparable
No*
cores
6*
Scope and conditions
benchmark_context
suite
PassMark*
test_configuration_verified
No*
comparable
No*
Specifications 12 · 8 fields
product
Xeon E5645*
status
Discontinued*
releaseDate
2,010*
cores
6*
maxTurboClock
2.67*
baseClock
2.4*
cache
12*
cacheInfo
Intel Smart Cache*

* Provisional data