Intel Xeon E5-2660 v2 vs Intel Xeon X5647

Comparative analysis of Intel Xeon E5-2660 v2 and Intel Xeon X5647 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 E5-2660 v2

Intel Xeon X5647

Differences

Reasons to consider the Intel Xeon E5-2660 v2

CPU is newer: launch date 2 year(s) 6 month(s) later
6 more cores, run more applications at once: 10 vs 4
12 more threads: 20 vs 8
A newer manufacturing process allows for a more powerful, yet cooler running processor: 22 nm vs 32 nm
2.5x more L1 cache, more data can be stored in the L1 cache for quick access later
2.5x more L2 cache, more data can be stored in the L2 cache for quick access later
2.1x more L3 cache, more data can be stored in the L3 cache for quick access later
2.7x more maximum memory size: 768 GB vs 288 GB
Around 37% lower typical power consumption: 95 Watt vs 130 Watt
2.2x better performance in PassMark - CPU mark: 18491 vs 8369

Specifications (specs)
Launch date	September 2013 vs February 2011
Number of cores	10 vs 4
Number of threads	20 vs 8
Manufacturing process technology	22 nm vs 32 nm
L1 cache	64 KB (per core) vs 64 KB (per core)
L2 cache	256 KB (per core) vs 256 KB (per core)
L3 cache	25600 KB (shared) vs 12288 KB (shared)
Maximum memory size	768 GB vs 288 GB
Thermal Design Power (TDP)	95 Watt vs 130 Watt
Benchmarks
PassMark - Single thread mark	1423 vs 1418
PassMark - CPU mark	18491 vs 8369

Reasons to consider the Intel Xeon X5647

Around 7% higher clock speed: 3.20 GHz vs 3.00 GHz
Around 7% higher maximum core temperature: 80.4°C vs 75°C

Maximum frequency	3.20 GHz vs 3.00 GHz
Maximum core temperature	80.4°C vs 75°C

Compare benchmarks

CPU 1: Intel Xeon E5-2660 v2
CPU 2: Intel Xeon X5647

PassMark - Single thread mark

CPU 1

CPU 2

1423

1418

PassMark - CPU mark

CPU 1

CPU 2

18491

8369

Name	Intel Xeon E5-2660 v2	Intel Xeon X5647
PassMark - Single thread mark	1423	1418
PassMark - CPU mark	18491	8369
Geekbench 4 - Single Core	605
Geekbench 4 - Multi-Core	5451

Compare specifications (specs)

	Intel Xeon E5-2660 v2	Intel Xeon X5647
Essentials
Architecture codename	Ivy Bridge EP	Westmere EP
Launch date	September 2013	February 2011
Launch price (MSRP)	$850	$175
Place in performance rating	1651	1628
Price now	$275.51	$199.75
Processor Number	E5-2660V2	X5647
Series	Intel® Xeon® Processor E5 v2 Family	Legacy Intel® Xeon® Processors
Status	Launched	Discontinued
Value for money (0-100)	14.39	8.82
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	2.20 GHz	2.93 GHz
Bus Speed	8 GT/s QPI	5.86 GT/s QPI
Die size	160 mm	239 mm
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	256 KB (per core)	256 KB (per core)
L3 cache	25600 KB (shared)	12288 KB (shared)
Manufacturing process technology	22 nm	32 nm
Maximum core temperature	75°C	80.4°C
Maximum frequency	3.00 GHz	3.20 GHz
Number of cores	10	4
Number of QPI Links	2	2
Number of threads	20	8
Transistor count	1400 million	1170 million
VID voltage range	0.65–1.30V	0.750V-1.350V
Memory
ECC memory support
Max memory channels	4	3
Maximum memory bandwidth	59.7 GB/s	25.6 GB/s
Maximum memory size	768 GB	288 GB
Supported memory types	DDR3 800/1066/1333/1600/1866	DDR3 800/1066
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	2	2
Package Size	52.5mm x 45mm	42.5mm X 45mm
Sockets supported	FCLGA2011	FCLGA1366
Thermal Design Power (TDP)	95 Watt	130 Watt
Peripherals
Max number of PCIe lanes	40
PCI Express revision	3.0
PCIe configurations	x4, x8, x16
Scalability	2S Only
Security & Reliability
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® OS Guard
Intel® Secure Key technology
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel® AVX	Intel® SSE4.2
Intel 64
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® TSX-NI
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Physical Address Extensions (PAE)	46-bit	40-bit
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)