Intel Xeon E5603 vs Intel Xeon X5687

Comparative analysis of Intel Xeon E5603 and Intel Xeon X5687 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, 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 E5603

Intel Xeon X5687

Differences

Reasons to consider the Intel Xeon E5603

Around 63% lower typical power consumption: 80 Watt vs 130 Watt

Thermal Design Power (TDP)	80 Watt vs 130 Watt

Reasons to consider the Intel Xeon X5687

4 more threads: 8 vs 4
Around 141% higher clock speed: 3.86 GHz vs 1.6 GHz
3x more L3 cache, more data can be stored in the L3 cache for quick access later
2.3x better performance in PassMark - Single thread mark: 1636 vs 710
2.7x better performance in PassMark - CPU mark: 9417 vs 3548

Specifications (specs)
Number of threads	8 vs 4
Maximum frequency	3.86 GHz vs 1.6 GHz
L3 cache	12288 KB (shared) vs 4096 KB (shared)
Benchmarks
PassMark - Single thread mark	1636 vs 710
PassMark - CPU mark	9417 vs 3548

Compare benchmarks

CPU 1: Intel Xeon E5603
CPU 2: Intel Xeon X5687

PassMark - Single thread mark

CPU 1

CPU 2

710

1636

PassMark - CPU mark

CPU 1

CPU 2

3548

9417

Name	Intel Xeon E5603	Intel Xeon X5687
PassMark - Single thread mark	710	1636
PassMark - CPU mark	3548	9417
CompuBench 1.5 Desktop - Face Detection (mPixels/s)		1.191
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)		62.153
CompuBench 1.5 Desktop - T-Rex (Frames/s)		0.384
CompuBench 1.5 Desktop - Video Composition (Frames/s)		0.49
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)		5.238

Compare specifications (specs)

	Intel Xeon E5603	Intel Xeon X5687
Essentials
Architecture codename	Westmere EP	Westmere EP
Launch date	February 2011	February 2011
Launch price (MSRP)	$286	$121
Place in performance rating	2593	2562
Price now	$129.04	$51.66
Processor Number	E5603	X5687
Series	Legacy Intel® Xeon® Processors	Legacy Intel® Xeon® Processors
Status	Discontinued	Discontinued
Value for money (0-100)	5.40	40.41
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	1.60 GHz	3.60 GHz
Bus Speed	4.8 GT/s QPI	6.4 GT/s QPI
Die size	239 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	4096 KB (shared)	12288 KB (shared)
Manufacturing process technology	32 nm	32 nm
Maximum frequency	1.6 GHz	3.86 GHz
Number of cores	4	4
Number of QPI Links	2	2
Number of threads	4	8
Transistor count	1170 million	1170 million
VID voltage range	0.750V-1.350V	0.750V-1.350V
Maximum core temperature		80.4°C
Memory
ECC memory support
Max memory channels	3	3
Maximum memory bandwidth	25.6 GB/s	32 GB/s
Maximum memory size	288 GB	288 GB
Supported memory types	DDR3 800/1066	DDR3 800/1066/1333
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	2	2
Package Size	42.5mm X 45mm	42.5mm X 45mm
Sockets supported	FCLGA1366	FCLGA1366
Thermal Design Power (TDP)	80 Watt	130 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® SSE4.2
Intel 64
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Physical Address Extensions (PAE)	40-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)