AMD Opteron 6281 vs AMD Opteron 6168

Comparative analysis of AMD Opteron 6281 and AMD Opteron 6168 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark.

AMD Opteron 6281

AMD Opteron 6168

Differences

Reasons to consider the AMD Opteron 6281

4 more cores, run more applications at once: 16 vs 12
Around 68% higher clock speed: 3.2 GHz vs 1.9 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 32 nm vs 45 nm
Around 34% better performance in PassMark - Single thread mark: 1129 vs 845

Specifications (specs)
Number of cores	16 vs 12
Maximum frequency	3.2 GHz vs 1.9 GHz
Manufacturing process technology	32 nm vs 45 nm
Max number of CPUs in a configuration	4 vs 2
Benchmarks
PassMark - Single thread mark	1129 vs 845

Reasons to consider the AMD Opteron 6168

4.5x more L2 cache, more data can be stored in the L2 cache for quick access later
Around 50% more L3 cache; more data can be stored in the L3 cache for quick access later
Around 13% lower typical power consumption: 115 Watt vs 130 Watt
2.2x better performance in PassMark - CPU mark: 15745 vs 7279

Specifications (specs)
L2 cache	6144 KB (per core) vs 16 MB
L3 cache	12288 KB vs 8 MB
Thermal Design Power (TDP)	115 Watt vs 130 Watt
Benchmarks
PassMark - CPU mark	15745 vs 7279

Compare benchmarks

CPU 1: AMD Opteron 6281
CPU 2: AMD Opteron 6168

PassMark - Single thread mark

CPU 1

CPU 2

1129

845

PassMark - CPU mark

CPU 1

CPU 2

7279

15745

Name	AMD Opteron 6281	AMD Opteron 6168
PassMark - Single thread mark	1129	845
PassMark - CPU mark	7279	15745

Compare specifications (specs)

	AMD Opteron 6281	AMD Opteron 6168
Essentials
Architecture codename	Bulldozer	Magny-Cours
Family	AMD Opteron
OPN Tray	OS6281YJTGGGU
Place in performance rating	1836	1872
Series	AMD Opteron 6200 Series Processor
Value for money (0-100)	33.18
Vertical segment	Server	Server
Launch date		March 2010
Performance
64 bit support
Base frequency	2.5 GHz
L1 cache	768 KB	768 KB (shared)
L2 cache	16 MB	6144 KB (per core)
L3 cache	8 MB	12288 KB
Manufacturing process technology	32 nm	45 nm
Maximum frequency	3.2 GHz	1.9 GHz
Number of cores	16	12
Number of threads	16
Unlocked
Die size		346 mm
Maximum case temperature (TCase)		69 °C
Transistor count		1800 million
Memory
Max memory channels	2
Supported memory frequency	2000 MHz
Supported memory types	DDR3	DDR3
Compatibility
Max number of CPUs in a configuration	4	2
Sockets supported	G34	G34
Thermal Design Power (TDP)	130 Watt	115 Watt
Advanced Technologies
Fused Multiply-Add (FMA)
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Virtualization
AMD Virtualization (AMD-V™)