AMD Opteron 4284 vs Intel Xeon X5647

Comparative analysis of AMD Opteron 4284 and Intel Xeon X5647 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 4284

Intel Xeon X5647

Differences

Reasons to consider the AMD Opteron 4284

4 more cores, run more applications at once: 8 vs 4
Around 16% higher clock speed: 3.7 GHz vs 3.20 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 37% lower typical power consumption: 95 Watt vs 130 Watt
Around 2% better performance in PassMark - CPU mark: 8560 vs 8369

Specifications (specs)
Number of cores	8 vs 4
Maximum frequency	3.7 GHz vs 3.20 GHz
L1 cache	384 KB vs 64 KB (per core)
L2 cache	8 MB vs 256 KB (per core)
Thermal Design Power (TDP)	95 Watt vs 130 Watt
Benchmarks
PassMark - CPU mark	8560 vs 8369

Reasons to consider the Intel Xeon X5647

Around 14% higher maximum core temperature: 80.4°C vs 70.50°C
Around 50% more L3 cache; more data can be stored in the L3 cache for quick access later
Around 4% better performance in PassMark - Single thread mark: 1418 vs 1369

Specifications (specs)
Maximum core temperature	80.4°C vs 70.50°C
L3 cache	12288 KB (shared) vs 8 MB
Benchmarks
PassMark - Single thread mark	1418 vs 1369

Compare benchmarks

CPU 1: AMD Opteron 4284
CPU 2: Intel Xeon X5647

PassMark - Single thread mark

CPU 1

CPU 2

1369

1418

PassMark - CPU mark

CPU 1

CPU 2

8560

8369

Name	AMD Opteron 4284	Intel Xeon X5647
PassMark - Single thread mark	1369	1418
PassMark - CPU mark	8560	8369

Compare specifications (specs)

	AMD Opteron 4284	Intel Xeon X5647
Essentials
Family	AMD Opteron
OPN Tray	OS4284WLU8KGU
Place in performance rating	1646	1623
Series	AMD Opteron 4200 Series Processor	Legacy Intel® Xeon® Processors
Vertical segment	Server	Server
Architecture codename		Westmere EP
Launch date		February 2011
Launch price (MSRP)		$175
Price now		$199.75
Processor Number		X5647
Status		Discontinued
Value for money (0-100)		8.82
Performance
Base frequency	3 GHz	2.93 GHz
L1 cache	384 KB	64 KB (per core)
L2 cache	8 MB	256 KB (per core)
L3 cache	8 MB	12288 KB (shared)
Manufacturing process technology	32 nm	32 nm
Maximum core temperature	70.50°C	80.4°C
Maximum frequency	3.7 GHz	3.20 GHz
Number of cores	8	4
Number of threads	8	8
Unlocked
64 bit support
Bus Speed		5.86 GT/s QPI
Die size		239 mm
Number of QPI Links		2
Transistor count		1170 million
VID voltage range		0.750V-1.350V
Memory
Supported memory frequency	2200 MHz
Supported memory types	DDR3	DDR3 800/1066
ECC memory support
Max memory channels		3
Maximum memory bandwidth		25.6 GB/s
Maximum memory size		288 GB
Compatibility
Sockets supported	C32	FCLGA1366
Thermal Design Power (TDP)	95 Watt	130 Watt
Low Halogen Options Available
Max number of CPUs in a configuration		2
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)