AMD Opteron 1385 vs Intel Xeon L5638

Comparative analysis of AMD Opteron 1385 and Intel Xeon L5638 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.

AMD Opteron 1385

Intel Xeon L5638

Differences

Reasons to consider the AMD Opteron 1385

Around 33% more L1 cache; more data can be stored in the L1 cache for quick access later
Around 33% more L2 cache; more data can be stored in the L2 cache for quick access later
Around 10% better performance in PassMark - Single thread mark: 1035 vs 944

Specifications (specs)
L1 cache	512 KB vs 64 KB (per core)
L2 cache	2 MB vs 256 KB (per core)
Benchmarks
PassMark - Single thread mark	1035 vs 944

Reasons to consider the Intel Xeon L5638

CPU is newer: launch date 8 month(s) later
2 more cores, run more applications at once: 6 vs 4
8 more threads: 12 vs 4
A newer manufacturing process allows for a more powerful, yet cooler running processor: 32 nm vs 45 nm
2x more L3 cache, more data can be stored in the L3 cache for quick access later
Around 92% lower typical power consumption: 60 Watt vs 115 Watt
3.8x better performance in PassMark - CPU mark: 7217 vs 1898

Specifications (specs)
Launch date	March 2010 vs 1 Jun 2009
Number of cores	6 vs 4
Number of threads	12 vs 4
Manufacturing process technology	32 nm vs 45 nm
L3 cache	12288 KB (shared) vs 6 MB
Max number of CPUs in a configuration	2 vs 1
Thermal Design Power (TDP)	60 Watt vs 115 Watt
Benchmarks
PassMark - CPU mark	7217 vs 1898

Compare benchmarks

CPU 1: AMD Opteron 1385
CPU 2: Intel Xeon L5638

PassMark - Single thread mark

CPU 1

CPU 2

1035

944

PassMark - CPU mark

CPU 1

CPU 2

1898

7217

Name	AMD Opteron 1385	Intel Xeon L5638
PassMark - Single thread mark	1035	944
PassMark - CPU mark	1898	7217

Compare specifications (specs)

	AMD Opteron 1385	Intel Xeon L5638
Essentials
Architecture codename	K10	Westmere EP
Launch date	1 Jun 2009	March 2010
Launch price (MSRP)	$229	$90
Place in performance rating	2118	2041
Vertical segment	Server	Server
Price now		$69.90
Processor Number		L5638
Series		Legacy Intel® Xeon® Processors
Status		Launched
Value for money (0-100)		23.41
Performance
Base frequency	2.7 GHz	2.00 GHz
L1 cache	512 KB	64 KB (per core)
L2 cache	2 MB	256 KB (per core)
L3 cache	6 MB	12288 KB (shared)
Manufacturing process technology	45 nm	32 nm
Number of cores	4	6
Number of threads	4	12
64 bit support
Bus Speed		5.86 GT/s QPI
Die size		239 mm
Maximum core temperature		85°C
Maximum frequency		2.40 GHz
Number of QPI Links		2
Transistor count		1170 million
VID voltage range		1.0 - 1.5V
Memory
Maximum memory size	256 TB
Supported memory types	DDR3-1333, DDR2-1066	DDR3
Compatibility
Max number of CPUs in a configuration	1	2
Sockets supported	AM2+, AM3	FCLGA1366
Thermal Design Power (TDP)	115 Watt	60 Watt
Low Halogen Options Available
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)