Intel Xeon E5-4657L v2 vs Intel Xeon E3-1275

Comparative analysis of Intel Xeon E5-4657L v2 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 E5-4657L v2

Intel Xeon E3-1275

Differences

Reasons to consider the Intel Xeon E5-4657L v2

8 more cores, run more applications at once: 12 vs 4
16 more threads: 24 vs 8
Around 12% higher maximum core temperature: 81°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
3.9x better performance in PassMark - CPU mark: 21548 vs 5499

Specifications (specs)
Number of cores	12 vs 4
Number of threads	24 vs 8
Maximum core temperature	81°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	21548 vs 5499

Reasons to consider the Intel Xeon E3-1275

Around 31% higher clock speed: 3.80 GHz vs 2.90 GHz
Around 21% lower typical power consumption: 95 Watt vs 115 Watt
Around 38% better performance in PassMark - Single thread mark: 1781 vs 1291

Specifications (specs)
Maximum frequency	3.80 GHz vs 2.90 GHz
Thermal Design Power (TDP)	95 Watt vs 115 Watt
Benchmarks
PassMark - Single thread mark	1781 vs 1291

Compare benchmarks

CPU 1: Intel Xeon E5-4657L v2
CPU 2: Intel Xeon E3-1275

PassMark - Single thread mark

CPU 1

CPU 2

1291

1781

PassMark - CPU mark

CPU 1

CPU 2

21548

5499

Name	Intel Xeon E5-4657L v2	Intel Xeon E3-1275
PassMark - Single thread mark	1291	1781
PassMark - CPU mark	21548	5499

Compare specifications (specs)

	Intel Xeon E5-4657L v2	Intel Xeon E3-1275
Essentials
Architecture codename	Ivy Bridge EP	Sandy Bridge
Launch date	Q1'14	April 2011
Place in performance rating	1397	1410
Processor Number	E5-4657LV2	E3-1275
Series	Intel® Xeon® Processor E5 v2 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	2.40 GHz	3.40 GHz
Bus Speed	8 GT/s QPI	5 GT/s DMI
Manufacturing process technology	22 nm	32 nm
Maximum core temperature	81°C	72.6°C
Maximum frequency	2.90 GHz	3.80 GHz
Number of cores	12	4
Number of QPI Links	2
Number of threads	24	8
VID voltage range	0.65-1.30V
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	59.7 GB/s	21 GB/s
Maximum memory size	768 GB	32 GB
Supported memory types	DDR3 800/1066/1333/1600/1866	DDR3 1066/1333
ECC memory support
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	4	1
Package Size	52.5 mm x 51 mm	37.5mm x 37.5mm
Sockets supported	FCLGA2011	LGA1155
Thermal Design Power (TDP)	115 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 Only
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® AVX	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX
Intel 64
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Hyper-Threading 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® Fast Memory Access
Intel® Flex 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