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CPU
Intel

Intel Xeon E3-1280

Processor Released

CPU cores
4
CPU threads
8
Maximum boost clock
3.9 GHz
Thermal design power
95 W

Benchmark results

  • PassMark · version unreported · cpuMark5,510*Platform unreported Compare results
  • PassMark · version unreported · threadMark1,780*Platform unreported Compare results
  • Reported score · version unreported · mark8,465*Platform unreported Compare results

Processing & platform

CPU cores
4
CPU threads
8
Base clock
3.5 GHz
CPU reference clock
100 MHz*
Turbo Boost 2.0 frequency
3.9 GHz*
Maximum supported memory bandwidth
21 GB/s*
Reported CPU clock
3.5 GHz*
Maximum boost clock
3.9 GHz
L3 cache
8 MB
Architecture
Sandy Bridge*
Socket / package
LGA 1155
Process node
32 nm
Reported chip die area
216 mm²*
Chip/package TDP
95 W*
Transistors
1,160 million*
Hardware threads per core
2*

Cache hierarchy

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

Compatible sockets

  • LGA 1155

Memory & storage

Memory channels
2
Video memory type
DDR3 1066/1333*

Supported memory

  • DDR3 1066/1333*

CPU memory support

  • 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
95 W

System configuration

Detailed specifications

Specifications 1 · 31 fields
Product Collection
Intel® Xeon® Processor E3 Family*
Processor Base Frequency
3.5* GHz
Max Turbo Frequency
3.9* GHz
Cache
8 MB SmartCache*
Bus Speed
5 GT/s DMI*
TDP
95* W
Embedded Options Available
No*
Max Memory Size
32* GB
Memory Types
DDR3 1066/1333*
Max nb of Memory Channels
2*
Vertical Segment
Server*
Max Memory Bandwidth
21* GB/s
ECC Memory Supported
Yes*
Processor Number
E3-1280*
PCI Express Revision
2*
Max nb of PCI Express Lanes
20*
T
73.6°C*
Intel Hyper Threading Technology
Yes*
Intel Virtualization Technology VTx
Yes*
Intel 64
Yes*
Status
End of Life*
Instruction Set
64-bit*
Instruction Set Extensions
SSE4.1/4.2, AVX*
Idle States
Yes*
Thermal Monitoring Technologies
Yes*
Execute Disable Bit
Yes*
Launch Date
Q2'11*
Lithography
32* nm
Recommended Customer Price
$612.00 - $623.00*
nb of Cores
4*
nb of Threads
8*
Specifications 2 · 9 fields
Release
Apr 3rd, 2011*
Name
Xeon E3-1280*
Codename
Sandy Bridge*
Cores
4 / 8*
Clock
3.5 to 3.9 GHz*
Socket
Socket 1155*
Process
32* nm
L3 Cache
8MB*
TDP
95* W
Specifications 3 · 9 fields
model
E3-1280*
date
2011-01-04*
clock
3,500*
max clock
3,900*
hw nthreadspercore
2*
hw ncores
4*
tdp
95*
name Processor code name
Sandy Bridge*
name Processor family
Xeon*
Specifications 4 · 12 fields
name
Intel Xeon E3-1280 @ 3.50GHz*
cores
4*
logicals
2*
samples
76*
price
358*
tdp
95*
date
2011-06-01*
socket
LGA1155*
category
Server*
speed
3,500*
turbo
3,900*
cpuCount
1*
Specifications 5 · 29 fields
name
Xeon E3-1280*
Release Date
Apr 3rd, 2011*
Part#
SR00R*
Frequency
3.5* GHz
Turbo Clock
up to 3.9 GHz*
Base Clock
100* MHz
Multiplier
35.0x*
Multiplier Unlocked
No*
Codename
Sandy Bridge*
Socket
Intel Socket 1155*
Generation
Xeon E3 (Sandy Bridge)*
Memory Support
DDR3*
ECC Memory
Yes*
# of Cores
4*
# of Threads
8*
SMP # CPUs
1*
Cache L1
64 KB (per core)*
Cache L2
256 KB (per core)*
Features
MMX, SSE, SSE2, SSE3, SSSE3, SSE4.2, AVX, EIST, Intel 64, XD bit, TXT, VT-x, VT-d, HTT, AES-NI*
Foundry
Intel*
Memory Bus
Dual-channel*
PCI-Express
Gen 3, 16 Lanes (CPU only)*
Process Size
32* nm
Cache L3
8 MB (shared)*
Transistors
1,160 million*
Die Size
216* mm²
Package
FC-LGA10*
Market
Server/Workstation*
Production Status
End-of-life*
Specifications 6 · 2 fields
brand
Intel*
name
Intel Xeon E3-1280 @ 3.50GHz*
Specifications 7 · 10 fields
Foundry
Intel*
Vendor
Intel*
Product
Intel Xeon E3-1280*
Type
CPU*
Release Date
2011-04-03*
Process Size (nm)
32* nm
TDP (W)
95* W
Die Size (mm^2)
216* mm²
Transistors (million)
1,160*
Freq (MHz)
3,500* MHz
Specifications 8 · 18 fields
turbo frequency
3,900*
cache size
8,192*
tdp
95*
socket
LGA1155*
memory type
DDR3 1066/1333*
cores
4*
vertical segment
Server*
max memory size
33,554,432*
status
Discontinued*
max temp
73.6*
package size
37.5mm x 37.5mm*
threads
8*
name
Intel Xeon E3-1280*
processor number
E3-1280*
launch date
2011-05-01*
lithography
32*
bus speed
5*
base frequency
3,500*
Specifications 9 · 51 fields
Recommended Customer Price
$623.00*
Scope and conditions
source_native_row_context
Price scope
Historical source recommendation; not a current retail offer. The original currency notation is retained.*
Intel® AES New Instructions
Yes*
Intel® Trusted Execution Technology ‡
Yes*
Execute Disable Bit ‡
Yes*
Intel® Virtualization Technology (VT-x) ‡
Yes*
Intel® Virtualization Technology for Directed I/O (VT-d) ‡
Yes*
Intel® VT-x with Extended Page Tables (EPT) ‡
Yes*
Intel vPro® Eligibility ‡
Intel vPro® Platform*
Total Cores
4*
Total Threads
8*
Processor Base Frequency
3.5* GHz
Cache
8.0* MB
Scope and conditions
source_native_row_context
Cache description
Intel® Smart Cache*
Original declaration
8 MB Intel® Smart Cache*
Bus Speed
5* GT/s
TDP
95* W
Max Turbo Frequency
3.9* GHz
Intel® Turbo Boost Technology 2.0 Frequency‡
3.9* GHz
Marketing Status
Discontinued*
Launch Date
Q2'11*
Servicing Status
End of Servicing Lifetime*
Embedded Options Available
No*
End of Servicing Updates Date
Tuesday | December 31 | 2019*
Max Memory Size (dependent on memory type)
32* GB
Memory Types
DDR3 1066/1333*
Max # of Memory Channels
2*
Max Memory Bandwidth
21* GB/s
ECC Memory Supported ‡
Yes*
Intel® Flexible Display Interface (Intel® FDI)
No*
Intel® Clear Video HD Technology
No*
Product Collection
Intel® Xeon® Processor E3 Family*
Intel® Quick Sync Video
No*
Intel® InTru™ 3D Technology
No*
Vertical Segment
Server*
PCI Express Revision
2.0*
Max # of PCI Express Lanes
20*
Sockets Supported
LGA1155*
Max CPU Configuration
1*
Processor Number
E3-1280*
TCASE
73.6* °C
Package Size
37.5mm x 37.5mm*
Intel® Turbo Boost Technology ‡
2.0*
Intel® Hyper-Threading Technology ‡
Yes*
Lithography
32* nm
Intel® 64 ‡
Yes*
Instruction Set
64-bit*
Idle States
Yes*
Intel® Demand Based Switching
Yes*
Thermal Monitoring Technologies
Yes*
Instruction Set Extensions
Intel® SSE4.1 | Intel® SSE4.2 | Intel® AVX*
Intel® Fast Memory Access
Yes*
Intel® Flex Memory Access
Yes*
Intel® Identity Protection Technology ‡
Yes*
Specifications 10 · 11 fields
name
Intel Xeon E3-1280 @ 3.50GHz*
socket
LGA1155*
category
Server*
price
$368.00*
mark
8,465*
value
23.01*
single thread
1,964*
single thread value
5.34*
tdp
95*
powerperf
89*
testdate
Jun 2011*
Specifications 11 · 10 fields
microarchitecture
Sandy Bridge*
Scope and conditions
source_native_row_context
category
cpu*
original_product_name
Intel Xeon E3-1280*
catalogue_reference
Intel Xeon E3-1280*
identity_scope
source-exact-processor-name*
dataset_date
2025-07-23*
scope
Historical publisher declaration. Missing or conflicting observations remain unverified; no benchmark or tested performance inferred.*
microarchitecture
Sandy Bridge*
Scope and conditions
source_native_row_context
category
cpu*
original_product_name
Intel Xeon E3-1280*
catalogue_reference
Intel Xeon E3-1280*
identity_scope
source-exact-processor-name*
dataset_date
2025-07-23*
scope
Historical publisher declaration. Missing or conflicting observations remain unverified; no benchmark or tested performance inferred.*
Reported core clock
3.5* GHz
Scope and conditions
source_native_row_context
category
cpu*
original_product_name
Intel Xeon E3-1280*
catalogue_reference
Intel Xeon E3-1280*
identity_scope
source-exact-processor-name*
dataset_date
2025-07-23*
scope
Source calls this core clock; it is not relabelled as base, sustained or gaming clock.*
Reported core clock
3.5* GHz
Scope and conditions
source_native_row_context
category
cpu*
original_product_name
Intel Xeon E3-1280*
catalogue_reference
Intel Xeon E3-1280*
identity_scope
source-exact-processor-name*
dataset_date
2025-07-23*
scope
Source calls this core clock; it is not relabelled as base, sustained or gaming clock.*
core count
4*
Scope and conditions
source_native_row_context
category
cpu*
original_product_name
Intel Xeon E3-1280*
catalogue_reference
Intel Xeon E3-1280*
identity_scope
source-exact-processor-name*
dataset_date
2025-07-23*
scope
Historical publisher declaration. Missing or conflicting observations remain unverified; no benchmark or tested performance inferred.*
core count
4*
Scope and conditions
source_native_row_context
category
cpu*
original_product_name
Intel Xeon E3-1280*
catalogue_reference
Intel Xeon E3-1280*
identity_scope
source-exact-processor-name*
dataset_date
2025-07-23*
scope
Historical publisher declaration. Missing or conflicting observations remain unverified; no benchmark or tested performance inferred.*
name
Intel Xeon E3-1280*
Scope and conditions
source_native_row_context
category
cpu*
original_product_name
Intel Xeon E3-1280*
catalogue_reference
Intel Xeon E3-1280*
identity_scope
source-exact-processor-name*
dataset_date
2025-07-23*
scope
Historical publisher declaration. Missing or conflicting observations remain unverified; no benchmark or tested performance inferred.*
name
Intel Xeon E3-1280*
Scope and conditions
source_native_row_context
category
cpu*
original_product_name
Intel Xeon E3-1280*
catalogue_reference
Intel Xeon E3-1280*
identity_scope
source-exact-processor-name*
dataset_date
2025-07-23*
scope
Historical publisher declaration. Missing or conflicting observations remain unverified; no benchmark or tested performance inferred.*
tdp
95* W
Scope and conditions
source_native_row_context
category
cpu*
original_product_name
Intel Xeon E3-1280*
catalogue_reference
Intel Xeon E3-1280*
identity_scope
source-exact-processor-name*
dataset_date
2025-07-23*
scope
Historical publisher declaration. Missing or conflicting observations remain unverified; no benchmark or tested performance inferred.*
tdp
95* W
Scope and conditions
source_native_row_context
category
cpu*
original_product_name
Intel Xeon E3-1280*
catalogue_reference
Intel Xeon E3-1280*
identity_scope
source-exact-processor-name*
dataset_date
2025-07-23*
scope
Historical publisher declaration. Missing or conflicting observations remain unverified; no benchmark or tested performance inferred.*
Specifications 12 · 12 fields
cpuName
Intel Xeon E3-1280 @ 3.50GHz*
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
LGA1155*
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
358*
Scope and conditions
benchmark_context
suite
PassMark*
test_configuration_verified
No*
comparable
No*
cpuMark
5,510*
Scope and conditions
benchmark_context
suite
PassMark*
test_configuration_verified
No*
comparable
No*
cpuValue
15.39*
Scope and conditions
benchmark_context
suite
PassMark*
test_configuration_verified
No*
comparable
No*
threadMark
1,780*
Scope and conditions
benchmark_context
suite
PassMark*
test_configuration_verified
No*
comparable
No*
threadValue
4.97*
Scope and conditions
benchmark_context
suite
PassMark*
test_configuration_verified
No*
comparable
No*
TDP
95*
Scope and conditions
benchmark_context
suite
PassMark*
test_configuration_verified
No*
comparable
No*
powerPerf
58*
Scope and conditions
benchmark_context
suite
PassMark*
test_configuration_verified
No*
comparable
No*
cores
4*
Scope and conditions
benchmark_context
suite
PassMark*
test_configuration_verified
No*
comparable
No*
Specifications 13 · 8 fields
product
Xeon E3-1280*
status
Discontinued*
releaseDate
2,011*
cores
4*
maxTurboClock
3.9*
baseClock
3.5*
cache
8*
cacheInfo
Intel Smart Cache*

* Provisional data