Intel Xeon W3565 vs Intel Xeon E5520

Comparative analysis of Intel Xeon W3565 and Intel Xeon E5520 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, 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).

Intel Xeon W3565

Intel Xeon E5520

Differences

Reasons to consider the Intel Xeon W3565

CPU is newer: launch date 8 month(s) later
Around 37% higher clock speed: 3.46 GHz vs 2.53 GHz
Around 36% better performance in PassMark - Single thread mark: 1504 vs 1106
Around 31% better performance in Geekbench 4 - Single Core: 522 vs 397
Around 5% better performance in Geekbench 4 - Multi-Core: 2070 vs 1969

Specifications (specs)
Launch date	November 2009 vs March 2009
Maximum frequency	3.46 GHz vs 2.53 GHz
Benchmarks
PassMark - Single thread mark	1504 vs 1106
Geekbench 4 - Single Core	522 vs 397
Geekbench 4 - Multi-Core	2070 vs 1969

Reasons to consider the Intel Xeon E5520

6x more maximum memory size: 144 GB vs 24 GB
Around 63% lower typical power consumption: 80 Watt vs 130 Watt
Around 37% better performance in PassMark - CPU mark: 4613 vs 3366
Around 38% better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 1.453 vs 1.052
Around 18% better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 62.27 vs 52.603
Around 25% better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 0.429 vs 0.342
Around 41% better performance in CompuBench 1.5 Desktop - Video Composition (Frames/s): 2.436 vs 1.732
Around 44% better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 6.95 vs 4.841

Specifications (specs)
Maximum memory size	144 GB vs 24 GB
Max number of CPUs in a configuration	2 vs 1
Thermal Design Power (TDP)	80 Watt vs 130 Watt
Benchmarks
PassMark - CPU mark	4613 vs 3366
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	1.453 vs 1.052
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	62.27 vs 52.603
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.429 vs 0.342
CompuBench 1.5 Desktop - Video Composition (Frames/s)	2.436 vs 1.732
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	6.95 vs 4.841

Compare benchmarks

CPU 1: Intel Xeon W3565
CPU 2: Intel Xeon E5520

PassMark - Single thread mark

CPU 1

CPU 2

1504

1106

PassMark - CPU mark

CPU 1

CPU 2

3366

4613

Geekbench 4 - Single Core

CPU 1

CPU 2

522

397

Geekbench 4 - Multi-Core

CPU 1

CPU 2

2070

1969

CompuBench 1.5 Desktop - Face Detection (mPixels/s)

CPU 1

CPU 2

1.052

1.453

CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)

CPU 1

CPU 2

52.603

62.27

CompuBench 1.5 Desktop - T-Rex (Frames/s)

CPU 1

CPU 2

0.342

0.429

CompuBench 1.5 Desktop - Video Composition (Frames/s)

CPU 1

CPU 2

1.732

2.436

CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)

CPU 1

CPU 2

4.841

6.95

Name	Intel Xeon W3565	Intel Xeon E5520
PassMark - Single thread mark	1504	1106
PassMark - CPU mark	3366	4613
Geekbench 4 - Single Core	522	397
Geekbench 4 - Multi-Core	2070	1969
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	1.052	1.453
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	52.603	62.27
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.342	0.429
CompuBench 1.5 Desktop - Video Composition (Frames/s)	1.732	2.436
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	4.841	6.95

Compare specifications (specs)

	Intel Xeon W3565	Intel Xeon E5520
Essentials
Architecture codename	Bloomfield	Nehalem EP
Launch date	November 2009	March 2009
Launch price (MSRP)	$70	$19
Place in performance rating	2647	2717
Price now	$69.95	$42.39
Processor Number	W3565	E5520
Series	Legacy Intel® Xeon® Processors	Legacy Intel® Xeon® Processors
Status	Discontinued	Launched
Value for money (0-100)	25.02	30.90
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	3.20 GHz	2.26 GHz
Bus Speed	4.8 GT/s QPI	5.86 GT/s QPI
Die size	263 mm2	263 mm2
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	256 KB (per core)	256 KB (per core)
L3 cache	8192 KB (shared)	8192 KB (shared)
Manufacturing process technology	45 nm	45 nm
Maximum frequency	3.46 GHz	2.53 GHz
Number of cores	4	4
Number of QPI Links	1	2
Number of threads	8	8
Transistor count	731 million	731 million
VID voltage range	0.800V-1.225V	0.75V -1.35V
Maximum core temperature		72°C
Memory
ECC memory support
Max memory channels	3	3
Maximum memory bandwidth	25.6 GB/s	25.6 GB/s
Maximum memory size	24 GB	144 GB
Supported memory types	DDR3 800/1066	DDR3 800/1066
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	2
Package Size	42.5mm x 45.0mm	42.5mm x 45mm
Sockets supported	FCLGA1366	FCLGA1366
Thermal Design Power (TDP)	130 Watt	80 Watt
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel® SSE4.2
Intel 64
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Physical Address Extensions (PAE)	36-bit	40-bit
Thermal Monitoring
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® VT-x with Extended Page Tables (EPT)
Intel® Virtualization Technology for Directed I/O (VT-d)