Intel Xeon E5-2440 vs Intel Xeon E5-2665

Comparative analysis of Intel Xeon E5-2440 and Intel Xeon E5-2665 processors for all known characteristics in the following categories: Essentials, Performance, Memory, 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 E5-2440

Intel Xeon E5-2665

Differences

Reasons to consider the Intel Xeon E5-2440

CPU is newer: launch date 2 month(s) later
Around 21% lower typical power consumption: 95 Watt vs 115 Watt

Launch date	May 2012 vs March 2012
Thermal Design Power (TDP)	95 Watt vs 115 Watt

Reasons to consider the Intel Xeon E5-2665

2 more cores, run more applications at once: 8 vs 6
4 more threads: 16 vs 12
Around 7% higher clock speed: 3.10 GHz vs 2.90 GHz
Around 33% more L1 cache; more data can be stored in the L1 cache for quick access later
Around 33% more L2 cache; more data can be stored in the L2 cache for quick access later
Around 33% more L3 cache; more data can be stored in the L3 cache for quick access later
Around 18% better performance in PassMark - Single thread mark: 1355 vs 1151
Around 31% better performance in PassMark - CPU mark: 14117 vs 10776

Specifications (specs)
Number of cores	8 vs 6
Number of threads	16 vs 12
Maximum frequency	3.10 GHz vs 2.90 GHz
L1 cache	64 KB (per core) vs 64 KB (per core)
L2 cache	256 KB (per core) vs 256 KB (per core)
L3 cache	20480 KB (shared) vs 15360 KB (shared)
Benchmarks
PassMark - Single thread mark	1355 vs 1151
PassMark - CPU mark	14117 vs 10776

Compare benchmarks

CPU 1: Intel Xeon E5-2440
CPU 2: Intel Xeon E5-2665

PassMark - Single thread mark

CPU 1

CPU 2

1151

1355

PassMark - CPU mark

CPU 1

CPU 2

10776

14117

Name	Intel Xeon E5-2440	Intel Xeon E5-2665
PassMark - Single thread mark	1151	1355
PassMark - CPU mark	10776	14117
Geekbench 4 - Single Core		573
Geekbench 4 - Multi-Core		4647

Compare specifications (specs)

	Intel Xeon E5-2440	Intel Xeon E5-2665
Essentials
Architecture codename	Sandy Bridge EN	Sandy Bridge EP
Launch date	May 2012	March 2012
Launch price (MSRP)	$295	$142
Place in performance rating	1798	1816
Price now	$43.72	$141.50
Processor Number	E5-2440	E5-2665
Series	Intel® Xeon® Processor E5 Family	Intel® Xeon® Processor E5 Family
Status	Discontinued	Discontinued
Value for money (0-100)	61.84	24.14
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	2.40 GHz	2.40 GHz
Bus Speed	7.2 GT/s QPI	8 GT/s QPI
Die size	294 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	15360 KB (shared)	20480 KB (shared)
Manufacturing process technology	32 nm	32 nm
Maximum frequency	2.90 GHz	3.10 GHz
Number of cores	6	8
Number of QPI Links	1	2
Number of threads	12	16
Transistor count	1270 million	2270 million
VID voltage range	0.6V-1.35V	0.60V-1.35V
Maximum core temperature		81.8°C
Memory
ECC memory support
Max memory channels	3	4
Maximum memory bandwidth	32 GB/s	51.2 GB/s
Maximum memory size	384 GB	384 GB
Supported memory types	DDR3 800/1066/1333	DDR3 800/1066/1333/1600
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	2	2
Package Size	45mm x 42.5mm	52.5mm x 45.0mm
Sockets supported	FCLGA1356	FCLGA2011
Thermal Design Power (TDP)	95 Watt	115 Watt
Peripherals
Max number of PCIe lanes	24	40
PCI Express revision	3.0	3.0
Scalability	2S Only	2S Only
Security & Reliability
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel® AVX	Intel® AVX
Intel 64
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Thermal Monitoring
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)