Intel Xeon E5-2696 v3 vs Intel Xeon E5-2665

Comparative analysis of Intel Xeon E5-2696 v3 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: CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), 3DMark Fire Strike - Physics Score, PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core.

Intel Xeon E5-2696 v3

Intel Xeon E5-2665

Differences

Reasons to consider the Intel Xeon E5-2696 v3

10 more cores, run more applications at once: 18 vs 8
20 more threads: 36 vs 16
A newer manufacturing process allows for a more powerful, yet cooler running processor: 22 nm vs 32 nm
2.3x more L1 cache, more data can be stored in the L1 cache for quick access later
2.3x more L2 cache, more data can be stored in the L2 cache for quick access later
2.3x more L3 cache, more data can be stored in the L3 cache for quick access later

Number of cores	18 vs 8
Number of threads	36 vs 16
Manufacturing process technology	22 nm vs 32 nm
L1 cache	1.125 MB vs 64 KB (per core)
L2 cache	4.5 MB vs 256 KB (per core)
L3 cache	45 MB vs 20480 KB (shared)

Compare benchmarks

CPU 1: Intel Xeon E5-2696 v3
CPU 2: Intel Xeon E5-2665

Name	Intel Xeon E5-2696 v3	Intel Xeon E5-2665
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	13.442
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	209.959
CompuBench 1.5 Desktop - T-Rex (Frames/s)	1.343
CompuBench 1.5 Desktop - Video Composition (Frames/s)	8.446
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	27.642
3DMark Fire Strike - Physics Score	6829
PassMark - Single thread mark		1355
PassMark - CPU mark		14117
Geekbench 4 - Single Core		573
Geekbench 4 - Multi-Core		4647

Compare specifications (specs)

	Intel Xeon E5-2696 v3	Intel Xeon E5-2665
Essentials
Architecture codename	Haswell-EP	Sandy Bridge EP
Family	Intel Xeon E5-2600 v3
Launch date	Q4'14	March 2012
Place in performance rating	1350	1731
Processor Number	E5-2696 v3	E5-2665
Vertical segment	Server	Server
Launch price (MSRP)		$142
Price now		$141.50
Series		Intel® Xeon® Processor E5 Family
Status		Discontinued
Value for money (0-100)		24.14
Performance
64 bit support
Base frequency	2300 MHz	2.40 GHz
Bus Speed	5 GT/s DMI	8 GT/s QPI
L1 cache	1.125 MB	64 KB (per core)
L2 cache	4.5 MB	256 KB (per core)
L3 cache	45 MB	20480 KB (shared)
Manufacturing process technology	22 nm	32 nm
Number of cores	18	8
Number of threads	36	16
Die size		435 mm
Maximum core temperature		81.8°C
Maximum frequency		3.10 GHz
Number of QPI Links		2
Transistor count		2270 million
VID voltage range		0.60V-1.35V
Memory
Max memory channels	2	4
Supported memory types	DDR4	DDR3 800/1066/1333/1600
ECC memory support
Maximum memory bandwidth		51.2 GB/s
Maximum memory size		384 GB
Compatibility
Max number of CPUs in a configuration	2	2
Sockets supported	LGA2011-3 (R3)	FCLGA2011
Low Halogen Options Available
Package Size		52.5mm x 45.0mm
Thermal Design Power (TDP)		115 Watt
Peripherals
Max number of PCIe lanes	40	40
PCI Express revision	3.0	3.0
Scalability		2S Only
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Intel® Identity Protection technology
Advanced Technologies
Enhanced Intel SpeedStep® technology
Fused Multiply-Add 3 (FMA3)
Intel 64
Intel® Advanced Vector Extensions (AVX)
Intel® Advanced Vector Extensions 2 (AVX2)
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Idle States
Instruction set extensions		Intel® AVX
Intel® Demand Based Switching
Intel® Flex Memory Access
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)