Intel Xeon E3-1220L vs Intel Xeon X5647

Comparative analysis of Intel Xeon E3-1220L and Intel Xeon X5647 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.

Intel Xeon E3-1220L

Intel Xeon X5647

Differences

Reasons to consider the Intel Xeon E3-1220L

CPU is newer: launch date 1 month(s) later
Around 6% higher clock speed: 3.40 GHz vs 3.20 GHz
6.5x lower typical power consumption: 20 Watt vs 130 Watt
Around 13% better performance in PassMark - Single thread mark: 1604 vs 1418

Specifications (specs)
Launch date	April 2011 vs February 2011
Maximum frequency	3.40 GHz vs 3.20 GHz
Thermal Design Power (TDP)	20 Watt vs 130 Watt
Benchmarks
PassMark - Single thread mark	1604 vs 1418

Reasons to consider the Intel Xeon X5647

2 more cores, run more applications at once: 4 vs 2
4 more threads: 8 vs 4
Around 4% higher maximum core temperature: 80.4°C vs 77.5°C
2x more L1 cache, more data can be stored in the L1 cache for quick access later
2x more L2 cache, more data can be stored in the L2 cache for quick access later
4x more L3 cache, more data can be stored in the L3 cache for quick access later
9x more maximum memory size: 288 GB vs 32 GB
3.6x better performance in PassMark - CPU mark: 8369 vs 2295

Specifications (specs)
Number of cores	4 vs 2
Number of threads	8 vs 4
Maximum core temperature	80.4°C vs 77.5°C
L1 cache	64 KB (per core) vs 64 KB (per core)
L2 cache	256 KB (per core) vs 256 KB (per core)
L3 cache	12288 KB (shared) vs 3072 KB (shared)
Maximum memory size	288 GB vs 32 GB
Max number of CPUs in a configuration	2 vs 1
Benchmarks
PassMark - CPU mark	8369 vs 2295

Compare benchmarks

CPU 1: Intel Xeon E3-1220L
CPU 2: Intel Xeon X5647

PassMark - Single thread mark

CPU 1

CPU 2

1604

1418

PassMark - CPU mark

CPU 1

CPU 2

2295

8369

Name	Intel Xeon E3-1220L	Intel Xeon X5647
PassMark - Single thread mark	1604	1418
PassMark - CPU mark	2295	8369

Compare specifications (specs)

	Intel Xeon E3-1220L	Intel Xeon X5647
Essentials
Architecture codename	Sandy Bridge	Westmere EP
Launch date	April 2011	February 2011
Place in performance rating	1627	1628
Processor Number	E3-1220L	X5647
Series	Intel® Xeon® Processor E3 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	2.20 GHz	2.93 GHz
Bus Speed	5 GT/s DMI	5.86 GT/s QPI
Die size	131 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	3072 KB (shared)	12288 KB (shared)
Manufacturing process technology	32 nm	32 nm
Maximum core temperature	77.5°C	80.4°C
Maximum frequency	3.40 GHz	3.20 GHz
Number of cores	2	4
Number of threads	4	8
Transistor count	504 million	1170 million
Number of QPI Links		2
VID voltage range		0.750V-1.350V
Memory
ECC memory support
Max memory channels	2	3
Maximum memory bandwidth	21 GB/s	25.6 GB/s
Maximum memory size	32 GB	288 GB
Supported memory types	DDR3 1066/1333	DDR3 800/1066
Graphics
Intel® Clear Video HD technology
Intel® Flexible Display Interface (Intel® FDI)
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Graphics interfaces
Wireless Display (WiDi) support
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	2
Package Size	37.5mm x 37.5mm	42.5mm X 45mm
Sockets supported	FCLGA1155	FCLGA1366
Thermal Design Power (TDP)	20 Watt	130 Watt
Peripherals
Max number of PCIe lanes	20
PCI Express revision	2.0
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® SSE4.2
Intel 64
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Fast Memory Access
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Thermal Monitoring
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)