Intel Xeon E5-4660 v3 vs Intel Xeon E3-1275

Comparative analysis of Intel Xeon E5-4660 v3 and Intel Xeon E3-1275 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization, Graphics, Graphics interfaces. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark.

Intel Xeon E5-4660 v3

Intel Xeon E3-1275

Differences

Reasons to consider the Intel Xeon E5-4660 v3

10 more cores, run more applications at once: 14 vs 4
20 more threads: 28 vs 8
Around 14% higher maximum core temperature: 82.5°C vs 72.6°C
A newer manufacturing process allows for a more powerful, yet cooler running processor: 22 nm vs 32 nm
24x more maximum memory size: 768 GB vs 32 GB
2.6x better performance in PassMark - CPU mark: 14256 vs 5504

Specifications (specs)
Number of cores	14 vs 4
Number of threads	28 vs 8
Maximum core temperature	82.5°C vs 72.6°C
Manufacturing process technology	22 nm vs 32 nm
Maximum memory size	768 GB vs 32 GB
Max number of CPUs in a configuration	4 vs 1
Benchmarks
PassMark - CPU mark	14256 vs 5504

Reasons to consider the Intel Xeon E3-1275

Around 31% higher clock speed: 3.80 GHz vs 2.90 GHz
Around 26% lower typical power consumption: 95 Watt vs 120 Watt
Around 14% better performance in PassMark - Single thread mark: 1779 vs 1558

Specifications (specs)
Maximum frequency	3.80 GHz vs 2.90 GHz
Thermal Design Power (TDP)	95 Watt vs 120 Watt
Benchmarks
PassMark - Single thread mark	1779 vs 1558

Compare benchmarks

CPU 1: Intel Xeon E5-4660 v3
CPU 2: Intel Xeon E3-1275

PassMark - Single thread mark

CPU 1

CPU 2

1558

1779

PassMark - CPU mark

CPU 1

CPU 2

14256

5504

Name	Intel Xeon E5-4660 v3	Intel Xeon E3-1275
PassMark - Single thread mark	1558	1779
PassMark - CPU mark	14256	5504

Compare specifications (specs)

	Intel Xeon E5-4660 v3	Intel Xeon E3-1275
Essentials
Architecture codename	Haswell	Sandy Bridge
Launch date	Q2'15	April 2011
Place in performance rating	1410	1415
Processor Number	E5-4660V3	E3-1275
Series	Intel® Xeon® Processor E5 v3 Family	Intel® Xeon® Processor E3 Family
Status	Launched	Discontinued
Vertical segment	Server	Server
Launch price (MSRP)		$450
Price now		$304
Value for money (0-100)		8.09
Performance
64 bit support
Base frequency	2.10 GHz	3.40 GHz
Bus Speed	9.6 GT/s QPI	5 GT/s DMI
Manufacturing process technology	22 nm	32 nm
Maximum core temperature	82.5°C	72.6°C
Maximum frequency	2.90 GHz	3.80 GHz
Number of cores	14	4
Number of QPI Links	2
Number of threads	28	8
Die size		216 mm
L1 cache		64 KB (per core)
L2 cache		256 KB (per core)
L3 cache		8192 KB (shared)
Transistor count		1160 million
Memory
Max memory channels	4	2
Maximum memory bandwidth	68 GB/s	21 GB/s
Maximum memory size	768 GB	32 GB
Supported memory types	DDR4	DDR3 1066/1333
ECC memory support
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	4	1
Package Size	52.5mm x 51mm	37.5mm x 37.5mm
Sockets supported	FCLGA2011-3	LGA1155
Thermal Design Power (TDP)	120 Watt	95 Watt
Peripherals
Max number of PCIe lanes	40	20
PCI Express revision	3.0	2.0
PCIe configurations	x4, x8, x16
Scalability	4S
Security & Reliability
Execute Disable Bit (EDB)
Intel® OS Guard
Intel® Secure Key technology
Intel® Trusted Execution technology (TXT)
Intel® Identity Protection technology
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel® AVX2	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX
Intel 64
Intel® AES New Instructions
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® Instruction Replay Technology
Intel® TSX-NI
Intel® Turbo Boost technology
Physical Address Extensions (PAE)	46-bit
Thermal Monitoring
Flexible Display interface (FDI)
Intel® Advanced Vector Extensions (AVX)
Intel® Demand Based Switching
Intel® Fast Memory Access
Intel® vPro™ Platform Eligibility
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)
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