AMD Opteron 1385 vs Intel Xeon E5640

Comparative analysis of AMD Opteron 1385 and Intel Xeon E5640 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, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core.

AMD Opteron 1385

Intel Xeon E5640

Differences

Reasons to consider the AMD Opteron 1385

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
910.2x more maximum memory size: 256 TB vs 288 GB

L1 cache	512 KB vs 64 KB (per core)
L2 cache	2 MB vs 256 KB (per core)
Maximum memory size	256 TB vs 288 GB

Reasons to consider the Intel Xeon E5640

CPU is newer: launch date 8 month(s) later
4 more threads: 8 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 44% lower typical power consumption: 80 Watt vs 115 Watt
Around 21% better performance in PassMark - Single thread mark: 1252 vs 1035
3.9x better performance in PassMark - CPU mark: 7455 vs 1898

Specifications (specs)
Launch date	March 2010 vs 1 Jun 2009
Number of threads	8 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)	80 Watt vs 115 Watt
Benchmarks
PassMark - Single thread mark	1252 vs 1035
PassMark - CPU mark	7455 vs 1898

Compare benchmarks

CPU 1: AMD Opteron 1385
CPU 2: Intel Xeon E5640

PassMark - Single thread mark

CPU 1

CPU 2

1035

1252

PassMark - CPU mark

CPU 1

CPU 2

1898

7455

Name	AMD Opteron 1385	Intel Xeon E5640
PassMark - Single thread mark	1035	1252
PassMark - CPU mark	1898	7455
Geekbench 4 - Single Core		476
Geekbench 4 - Multi-Core		2185

Compare specifications (specs)

	AMD Opteron 1385	Intel Xeon E5640
Essentials
Architecture codename	K10	Westmere EP
Launch date	1 Jun 2009	March 2010
Launch price (MSRP)	$229	$49
Place in performance rating	2228	2222
Vertical segment	Server	Server
Price now		$59.49
Processor Number		E5640
Series		Legacy Intel® Xeon® Processors
Status		Discontinued
Value for money (0-100)		26.06
Performance
Base frequency	2.7 GHz	2.66 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	4
Number of threads	4	8
64 bit support
Bus Speed		5.86 GT/s QPI
Die size		239 mm
Maximum core temperature		77.6°C
Maximum frequency		2.93 GHz
Number of QPI Links		2
Transistor count		1170 million
VID voltage range		0.750V-1.350V
Memory
Maximum memory size	256 TB	288 GB
Supported memory types	DDR3-1333, DDR2-1066	DDR3 800/1066
ECC memory support
Max memory channels		3
Maximum memory bandwidth		25.6 GB/s
Compatibility
Max number of CPUs in a configuration	1	2
Sockets supported	AM2+, AM3	FCLGA1366
Thermal Design Power (TDP)	115 Watt	80 Watt
Low Halogen Options Available
Package Size		42.5mm X 45mm
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
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)