Intel Xeon E7-4860 vs Intel Xeon X5647

Comparative analysis of Intel Xeon E7-4860 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.

Intel Xeon E7-4860

Intel Xeon X5647

Differences

Reasons to consider the Intel Xeon E7-4860

6 more cores, run more applications at once: 10 vs 4
12 more threads: 20 vs 8
7.1x more maximum memory size: 2 TB vs 288 GB
2.6x better performance in PassMark - CPU mark: 22121 vs 8369

Specifications (specs)
Number of cores	10 vs 4
Number of threads	20 vs 8
Maximum memory size	2 TB vs 288 GB
Max number of CPUs in a configuration	4 vs 2
Benchmarks
PassMark - CPU mark	22121 vs 8369

Reasons to consider the Intel Xeon X5647

Around 20% higher clock speed: 3.20 GHz vs 2.67 GHz
Around 17% higher maximum core temperature: 80.4°C vs 69°C
Around 32% better performance in PassMark - Single thread mark: 1418 vs 1071

Specifications (specs)
Maximum frequency	3.20 GHz vs 2.67 GHz
Maximum core temperature	80.4°C vs 69°C
Benchmarks
PassMark - Single thread mark	1418 vs 1071

Compare benchmarks

CPU 1: Intel Xeon E7-4860
CPU 2: Intel Xeon X5647

PassMark - Single thread mark

CPU 1

CPU 2

1071

1418

PassMark - CPU mark

CPU 1

CPU 2

22121

8369

Name	Intel Xeon E7-4860	Intel Xeon X5647
PassMark - Single thread mark	1071	1418
PassMark - CPU mark	22121	8369

Compare specifications (specs)

	Intel Xeon E7-4860	Intel Xeon X5647
Essentials
Architecture codename	Westmere EX	Westmere EP
Launch date	Q2'11	February 2011
Place in performance rating	1636	1648
Processor Number	E7-4860	X5647
Series	Intel® Xeon® Processor E7 Family	Legacy Intel® Xeon® Processors
Status	Discontinued	Discontinued
Vertical segment	Server	Server
Launch price (MSRP)		$175
Price now		$199.75
Value for money (0-100)		8.82
Performance
64 bit support
Base frequency	2.26 GHz	2.93 GHz
Bus Speed	6.4 GT/s QPI	5.86 GT/s QPI
Manufacturing process technology	32 nm	32 nm
Maximum core temperature	69°C	80.4°C
Maximum frequency	2.67 GHz	3.20 GHz
Number of cores	10	4
Number of threads	20	8
Die size		239 mm
L1 cache		64 KB (per core)
L2 cache		256 KB (per core)
L3 cache		12288 KB (shared)
Number of QPI Links		2
Transistor count		1170 million
VID voltage range		0.750V-1.350V
Memory
Max memory channels	4	3
Maximum memory size	2 TB	288 GB
Supported memory types	DDR3 800/978/1066/1333 (Max Speed 1066 MHz)	DDR3 800/1066
ECC memory support
Maximum memory bandwidth		25.6 GB/s
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	4	2
Package Size	49.17mm x 56.47mm	42.5mm X 45mm
Sockets supported	LGA1567	FCLGA1366
Thermal Design Power (TDP)	130 Watt	130 Watt
Peripherals
Scalability	S4S
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	Intel® SSE4.2
Intel 64
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Thermal Monitoring
Idle States
Intel® Demand Based Switching
Physical Address Extensions (PAE)		40-bit
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)