Intel Xeon L5638 vs Intel Xeon W3505

Comparative analysis of Intel Xeon L5638 and Intel Xeon W3505 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.

Intel Xeon L5638

Intel Xeon W3505

Differences

Reasons to consider the Intel Xeon L5638

CPU is newer: launch date 1 year(s) 0 month(s) later
4 more cores, run more applications at once: 6 vs 2
A newer manufacturing process allows for a more powerful, yet cooler running processor: 32 nm vs 45 nm
3x more L1 cache, more data can be stored in the L1 cache for quick access later
3x 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
2.2x lower typical power consumption: 60 Watt vs 130 Watt
6.1x better performance in PassMark - CPU mark: 7217 vs 1181

Specifications (specs)
Launch date	March 2010 vs March 2009
Number of cores	6 vs 2
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)
Max number of CPUs in a configuration	2 vs 1
Thermal Design Power (TDP)	60 Watt vs 130 Watt
Benchmarks
PassMark - CPU mark	7217 vs 1181

Reasons to consider the Intel Xeon W3505

Around 5% higher clock speed: 2.53 GHz vs 2.40 GHz
Around 17% better performance in PassMark - Single thread mark: 1103 vs 944

Specifications (specs)
Maximum frequency	2.53 GHz vs 2.40 GHz
Benchmarks
PassMark - Single thread mark	1103 vs 944

Compare benchmarks

CPU 1: Intel Xeon L5638
CPU 2: Intel Xeon W3505

PassMark - Single thread mark

CPU 1

CPU 2

944

1103

PassMark - CPU mark

CPU 1

CPU 2

7217

1181

Name	Intel Xeon L5638	Intel Xeon W3505
PassMark - Single thread mark	944	1103
PassMark - CPU mark	7217	1181

Compare specifications (specs)

	Intel Xeon L5638	Intel Xeon W3505
Essentials
Architecture codename	Westmere EP	Bloomfield
Launch date	March 2010	March 2009
Launch price (MSRP)	$90
Place in performance rating	2178	2180
Price now	$69.90
Processor Number	L5638
Series	Legacy Intel® Xeon® Processors
Status	Launched
Value for money (0-100)	23.41
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	2.00 GHz
Bus Speed	5.86 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	85°C
Maximum frequency	2.40 GHz	2.53 GHz
Number of cores	6	2
Number of QPI Links	2
Number of threads	12
Transistor count	1170 million	731 million
VID voltage range	1.0 - 1.5V
Memory
Supported memory types	DDR3	DDR3
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	2	1
Sockets supported	FCLGA1366	1366
Thermal Design Power (TDP)	60 Watt	130 Watt
Security & Reliability
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Idle States
Intel 64
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)