Intel Xeon L5508 vs Intel Xeon W3503

Comparative analysis of Intel Xeon L5508 and Intel Xeon W3503 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 L5508

Intel Xeon W3503

Differences

Reasons to consider the Intel Xeon L5508

2x more L3 cache, more data can be stored in the L3 cache for quick access later
3.4x lower typical power consumption: 38 Watt vs 130 Watt

L3 cache	8192 KB (shared) vs 4096 KB (shared)
Max number of CPUs in a configuration	2 vs 1
Thermal Design Power (TDP)	38 Watt vs 130 Watt

Compare benchmarks

CPU 1: Intel Xeon L5508
CPU 2: Intel Xeon W3503

Name	Intel Xeon L5508	Intel Xeon W3503
PassMark - Single thread mark		1025
PassMark - CPU mark		1118
CompuBench 1.5 Desktop - Face Detection (mPixels/s)		0.27
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)		24.752
CompuBench 1.5 Desktop - T-Rex (Frames/s)		0.098
CompuBench 1.5 Desktop - Video Composition (Frames/s)		0.561
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)		1.753

Compare specifications (specs)

	Intel Xeon L5508	Intel Xeon W3503
Essentials
Architecture codename	Nehalem EP	Bloomfield
Launch date	March 2009	March 2009
Place in performance rating	not rated	3143
Processor Number	L5508
Series	Legacy Intel® Xeon® Processors
Status	Launched
Vertical segment	Embedded	Server
Launch price (MSRP)		$65
Price now		$16.22
Value for money (0-100)		31.88
Performance
64 bit support
Base frequency	2.00 GHz
Bus Speed	5.86 GT/s QPI
Die size	263 mm2	263 mm
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)	4096 KB (shared)
Manufacturing process technology	45 nm	45 nm
Maximum core temperature	85°C
Maximum frequency	2.40 GHz	2.4 GHz
Number of cores	2	2
Number of QPI Links	2
Number of threads	4
Transistor count	731 million	731 million
VID voltage range	0.75V -1.35V
Memory
ECC memory support
Max memory channels	3
Maximum memory bandwidth	25.6 GB/s
Maximum memory size	144 GB
Supported memory types	DDR3 800/1066	DDR3
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	2	1
Package Size	42.5mm x 45mm
Sockets supported	FCLGA1366	1366
Thermal Design Power (TDP)	38 Watt	130 Watt
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Intel 64
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
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)