Intel Xeon E3-1275 processor review

Intel Xeon E3-1275

Xeon E3-1275 processor released by Intel; release date: April 2011. At the time of release, the processor cost $450. The processor is designed for server-computers and based on Sandy Bridge microarchitecture.

CPU is locked to prevent overclocking. Total number of cores - 4, threads - 8. Maximum CPU clock speed - 3.80 GHz. Maximum operating temperature - 72.6°C. Manufacturing process technology - 32 nm. Cache size: L1 - 64 KB (per core), L2 - 256 KB (per core), L3 - 8192 KB (shared).

Supported memory types: DDR3 1066/1333. Maximum memory size: 32 GB.

Supported socket types: LGA1155. Maximum number of processors in a configuration - 1. Power consumption (TDP): 95 Watt.

The processor has integrated graphics Intel HD Graphics P3000 with the following parameters: maximum frequency - 1.35 GHz.

Benchmarks

PassMark
Single thread mark
Top 1 CPU
This CPU
4773
1770
PassMark
CPU mark
Top 1 CPU
This CPU
153592
5503
Name Value
PassMark - Single thread mark 1770
PassMark - CPU mark 5503

Integrated graphics – Intel HD Graphics P3000

Technical info

Boost clock speed 1350 MHz
Core clock speed 850 MHz
Manufacturing process technology 32 nm
Transistor count 995 million

Specifications (specs)

Essentials

Architecture codename Sandy Bridge
Launch date April 2011
Launch price (MSRP) $450
Place in performance rating 1327
Price now $304
Processor Number E3-1275
Series Intel® Xeon® Processor E3 Family
Status Discontinued
Value for money (0-100) 8.09
Vertical segment Server

Performance

64 bit support
Base frequency 3.40 GHz
Bus Speed 5 GT/s DMI
Die size 216 mm
L1 cache 64 KB (per core)
L2 cache 256 KB (per core)
L3 cache 8192 KB (shared)
Manufacturing process technology 32 nm
Maximum core temperature 72.6°C
Maximum frequency 3.80 GHz
Number of cores 4
Number of threads 8
Transistor count 1160 million

Memory

ECC memory support
Max memory channels 2
Maximum memory bandwidth 21 GB/s
Maximum memory size 32 GB
Supported memory types DDR3 1066/1333

Graphics

Graphics base frequency 850 MHz
Graphics max dynamic frequency 1.35 GHz
Graphics max frequency 1.35 GHz
Intel® Clear Video HD technology
Intel® Flexible Display Interface (Intel® FDI)
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Processor graphics Intel HD Graphics P3000

Graphics interfaces

Number of displays supported 2
Wireless Display (WiDi) support

Compatibility

Low Halogen Options Available
Max number of CPUs in a configuration 1
Package Size 37.5mm x 37.5mm
Sockets supported LGA1155
Thermal Design Power (TDP) 95 Watt

Peripherals

Max number of PCIe lanes 20
PCI Express revision 2.0

Security & Reliability

Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® Trusted Execution technology (TXT)

Advanced Technologies

Enhanced Intel SpeedStep® technology
Flexible Display interface (FDI)
Idle States
Instruction set extensions Intel® SSE4.1, Intel® SSE4.2, Intel® AVX
Intel 64
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Fast Memory Access
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Thermal Monitoring

Virtualization

Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)