Intel Xeon X5687 vs Intel Xeon E5503

Comparative analysis of Intel Xeon X5687 and Intel Xeon E5503 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 X5687

Intel Xeon E5503

Differences

Reasons to consider the Intel Xeon X5687

CPU is newer: launch date 11 month(s) later
2 more cores, run more applications at once: 4 vs 2
6 more threads: 8 vs 2
Around 93% higher clock speed: 3.86 GHz vs 2 GHz
Around 6% higher maximum core temperature: 80.4°C vs 76°C
A newer manufacturing process allows for a more powerful, yet cooler running processor: 32 nm vs 45 nm
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
3x more L3 cache, more data can be stored in the L3 cache for quick access later
2x more maximum memory size: 288 GB vs 144 GB
2.1x better performance in PassMark - Single thread mark: 1636 vs 783
5.3x better performance in PassMark - CPU mark: 9417 vs 1787

Specifications (specs)
Launch date	February 2011 vs March 2010
Number of cores	4 vs 2
Number of threads	8 vs 2
Maximum frequency	3.86 GHz vs 2 GHz
Maximum core temperature	80.4°C vs 76°C
Manufacturing process technology	32 nm vs 45 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	12288 KB (shared) vs 4096 KB (shared)
Maximum memory size	288 GB vs 144 GB
Benchmarks
PassMark - Single thread mark	1636 vs 783
PassMark - CPU mark	9417 vs 1787

Reasons to consider the Intel Xeon E5503

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

Thermal Design Power (TDP)	80 Watt vs 130 Watt

Compare benchmarks

CPU 1: Intel Xeon X5687
CPU 2: Intel Xeon E5503

PassMark - Single thread mark

CPU 1

CPU 2

1636

783

PassMark - CPU mark

CPU 1

CPU 2

9417

1787

Name	Intel Xeon X5687	Intel Xeon E5503
PassMark - Single thread mark	1636	783
PassMark - CPU mark	9417	1787
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 X5687	Intel Xeon E5503
Essentials
Architecture codename	Westmere EP	Nehalem EP
Launch date	February 2011	March 2010
Launch price (MSRP)	$121	$287
Place in performance rating	2562	2566
Price now	$51.66	$287.01
Processor Number	X5687	E5503
Series	Legacy Intel® Xeon® Processors	Legacy Intel® Xeon® Processors
Status	Discontinued	Launched
Value for money (0-100)	40.41	1.43
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	3.60 GHz	2.00 GHz
Bus Speed	6.4 GT/s QPI	4.8 GT/s QPI
Die size	239 mm	263 mm
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	256 KB (per core)	256 KB (per core)
L3 cache	12288 KB (shared)	4096 KB (shared)
Manufacturing process technology	32 nm	45 nm
Maximum core temperature	80.4°C	76°C
Maximum frequency	3.86 GHz	2 GHz
Number of cores	4	2
Number of QPI Links	2	2
Number of threads	8	2
Transistor count	1170 million	731 million
VID voltage range	0.750V-1.350V	0.75V -1.35V
Memory
ECC memory support
Max memory channels	3	3
Maximum memory bandwidth	32 GB/s	19.2 GB/s
Maximum memory size	288 GB	144 GB
Supported memory types	DDR3 800/1066/1333	DDR3 800
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)	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)	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)