Intel Xeon E3-1265L v2 vs Intel Xeon E5-2640

Comparative analysis of Intel Xeon E3-1265L v2 and Intel Xeon E5-2640 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core.

Intel Xeon E3-1265L v2

Intel Xeon E5-2640

Differences

Reasons to consider the Intel Xeon E3-1265L v2

CPU is newer: launch date 2 month(s) later
Around 17% higher clock speed: 3.50 GHz vs 3.00 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 22 nm vs 32 nm
2.1x lower typical power consumption: 45 Watt vs 95 Watt
Around 23% better performance in PassMark - Single thread mark: 1653 vs 1347
Around 5% better performance in Geekbench 4 - Single Core: 592 vs 564

Specifications (specs)
Launch date	May 2012 vs March 2012
Maximum frequency	3.50 GHz vs 3.00 GHz
Manufacturing process technology	22 nm vs 32 nm
Thermal Design Power (TDP)	45 Watt vs 95 Watt
Benchmarks
PassMark - Single thread mark	1653 vs 1347
Geekbench 4 - Single Core	592 vs 564

Reasons to consider the Intel Xeon E5-2640

2 more cores, run more applications at once: 6 vs 4
4 more threads: 12 vs 8
Around 50% more L1 cache; more data can be stored in the L1 cache for quick access later
Around 50% more L2 cache; more data can be stored in the L2 cache for quick access later
Around 88% more L3 cache; more data can be stored in the L3 cache for quick access later
11.7x more maximum memory size: 384 GB vs 32.77 GB
2.3x better performance in PassMark - CPU mark: 11638 vs 5148
Around 40% better performance in Geekbench 4 - Multi-Core: 3363 vs 2402

Specifications (specs)
Number of cores	6 vs 4
Number of threads	12 vs 8
L1 cache	64 KB (per core) vs 64 KB (per core)
L2 cache	256 KB (per core) vs 256 KB (per core)
L3 cache	15360 KB (shared) vs 8192 KB (shared)
Maximum memory size	384 GB vs 32.77 GB
Max number of CPUs in a configuration	2 vs 1
Benchmarks
PassMark - CPU mark	11638 vs 5148
Geekbench 4 - Multi-Core	3363 vs 2402

Compare benchmarks

CPU 1: Intel Xeon E3-1265L v2
CPU 2: Intel Xeon E5-2640

PassMark - Single thread mark

CPU 1

CPU 2

1653

1347

PassMark - CPU mark

CPU 1

CPU 2

5148

11638

Geekbench 4 - Single Core

CPU 1

CPU 2

592

564

Geekbench 4 - Multi-Core

CPU 1

CPU 2

2402

3363

Name	Intel Xeon E3-1265L v2	Intel Xeon E5-2640
PassMark - Single thread mark	1653	1347
PassMark - CPU mark	5148	11638
Geekbench 4 - Single Core	592	564
Geekbench 4 - Multi-Core	2402	3363

Compare specifications (specs)

	Intel Xeon E3-1265L v2	Intel Xeon E5-2640
Essentials
Architecture codename	Ivy Bridge	Sandy Bridge EP
Launch date	May 2012	March 2012
Launch price (MSRP)	$142	$162
Place in performance rating	1954	1956
Price now	$142.42	$197.27
Processor Number	E3-1265LV2	E5-2640
Series	Intel® Xeon® Processor E3 v2 Family	Intel® Xeon® Processor E5 Family
Status	Discontinued	Discontinued
Value for money (0-100)	16.10	14.20
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	2.50 GHz	2.50 GHz
Bus Speed	5 GT/s DMI	7.2 GT/s QPI
Die size	160 mm	435 mm
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	256 KB (per core)	256 KB (per core)
L3 cache	8192 KB (shared)	15360 KB (shared)
Manufacturing process technology	22 nm	32 nm
Maximum frequency	3.50 GHz	3.00 GHz
Number of cores	4	6
Number of threads	8	12
Transistor count	1400 million	2270 million
Maximum core temperature		73 °C
Number of QPI Links		2
VID voltage range		0.60V-1.35V
Memory
ECC memory support
Max memory channels	2	4
Maximum memory size	32.77 GB	384 GB
Supported memory types	DDR3 1333/1600	DDR3 800/1066/1333
Maximum memory bandwidth		42.6 GB/s
Graphics
Graphics base frequency	650 MHz
Graphics max dynamic frequency	1.15 GHz
Graphics max frequency	1.15 GHz
Intel® Clear Video HD technology
Intel® Clear Video technology
Intel® Flexible Display Interface (Intel® FDI)
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Processor graphics	Intel® HD Graphics 2500
Graphics interfaces
Number of displays supported	3
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	2
Sockets supported	FCLGA1155	FCLGA2011
Thermal Design Power (TDP)	45 Watt	95 Watt
Package Size		52.5mm x 45.0mm
Peripherals
PCI Express revision	3.0	3.0
PCIe configurations	1x16 & 1x4, 2x8 & 1x4 or 1x8 & 3x4
Max number of PCIe lanes		40
Scalability		2S Only
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® AVX
Intel 64
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® TSX-NI
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Intel® Demand Based Switching
Intel® Flex Memory Access
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)