AMD Opteron 6281 vs Intel Xeon E5-4620

Comparative analysis of AMD Opteron 6281 and Intel Xeon E5-4620 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Advanced Technologies, Virtualization, Peripherals, Security & Reliability. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark.

AMD Opteron 6281

Intel Xeon E5-4620

Differences

Reasons to consider the AMD Opteron 6281

8 more cores, run more applications at once: 16 vs 8
Around 23% higher clock speed: 3.2 GHz vs 2.60 GHz
Around 50% more L1 cache; more data can be stored in the L1 cache for quick access later
8x more L2 cache, more data can be stored in the L2 cache for quick access later
Around 16% better performance in PassMark - Single thread mark: 1129 vs 974

Specifications (specs)
Number of cores	16 vs 8
Maximum frequency	3.2 GHz vs 2.60 GHz
L1 cache	768 KB vs 64 KB (per core)
L2 cache	16 MB vs 256 KB (per core)
Benchmarks
PassMark - Single thread mark	1129 vs 974

Reasons to consider the Intel Xeon E5-4620

2x more L3 cache, more data can be stored in the L3 cache for quick access later
Around 37% lower typical power consumption: 95 Watt vs 130 Watt
Around 58% better performance in PassMark - CPU mark: 11474 vs 7279

Specifications (specs)
L3 cache	16384 KB (shared) vs 8 MB
Thermal Design Power (TDP)	95 Watt vs 130 Watt
Benchmarks
PassMark - CPU mark	11474 vs 7279

Compare benchmarks

CPU 1: AMD Opteron 6281
CPU 2: Intel Xeon E5-4620

PassMark - Single thread mark

CPU 1

CPU 2

1129

974

PassMark - CPU mark

CPU 1

CPU 2

7279

11474

Name	AMD Opteron 6281	Intel Xeon E5-4620
PassMark - Single thread mark	1129	974
PassMark - CPU mark	7279	11474

Compare specifications (specs)

	AMD Opteron 6281	Intel Xeon E5-4620
Essentials
Architecture codename	Bulldozer	Sandy Bridge EP
Family	AMD Opteron
OPN Tray	OS6281YJTGGGU
Place in performance rating	1936	1972
Series	AMD Opteron 6200 Series Processor	Intel® Xeon® Processor E5 Family
Value for money (0-100)	33.18	12.66
Vertical segment	Server	Server
Launch date		May 2012
Launch price (MSRP)		$400
Price now		$189
Processor Number		E5-4620
Status		Discontinued
Performance
64 bit support
Base frequency	2.5 GHz	2.20 GHz
L1 cache	768 KB	64 KB (per core)
L2 cache	16 MB	256 KB (per core)
L3 cache	8 MB	16384 KB (shared)
Manufacturing process technology	32 nm	32 nm
Maximum frequency	3.2 GHz	2.60 GHz
Number of cores	16	8
Number of threads	16	16
Unlocked
Bus Speed		7.2 GT/s QPI
Die size		435 mm
Number of QPI Links		2
Transistor count		2270 million
VID voltage range		0.6V-1.35V
Memory
Max memory channels	2	4
Supported memory frequency	2000 MHz
Supported memory types	DDR3	DDR3 800/1066/1333
ECC memory support
Maximum memory bandwidth		42.6 GB/s
Maximum memory size		384 GB
Compatibility
Max number of CPUs in a configuration	4	4
Sockets supported	G34	FCLGA2011
Thermal Design Power (TDP)	130 Watt	95 Watt
Low Halogen Options Available
Package Size		52.5mm x 45.0mm
Advanced Technologies
Fused Multiply-Add (FMA)
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions		Intel® AVX
Intel 64
Intel® Demand Based Switching
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Thermal Monitoring
Virtualization
AMD Virtualization (AMD-V™)
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)
Peripherals
Max number of PCIe lanes		40
PCI Express revision		3.0
Scalability		4S Only
Security & Reliability
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® Trusted Execution technology (TXT)