AMD Athlon II X4 651K vs AMD Opteron 6274

Comparative analysis of AMD Athlon II X4 651K and AMD Opteron 6274 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Virtualization, Advanced Technologies. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark.

AMD Athlon II X4 651K

AMD Opteron 6274

Differences

Reasons to consider the AMD Athlon II X4 651K

Around 15% lower typical power consumption: 100 Watt vs 115 Watt

Thermal Design Power (TDP)	100 Watt vs 115 Watt

Reasons to consider the AMD Opteron 6274

12 more cores, run more applications at once: 16 vs 4
Around 3% higher clock speed: 3.1 GHz vs 3 GHz
Around 50% more L1 cache; more data can be stored in the L1 cache for quick access later
4x more L2 cache, more data can be stored in the L2 cache for quick access later

Number of cores	16 vs 4
Maximum frequency	3.1 GHz vs 3 GHz
L1 cache	768 KB vs 128 KB (per core)
L2 cache	16 MB vs 1024 KB (per core)
Max number of CPUs in a configuration	2 vs 1

Compare benchmarks

CPU 1: AMD Athlon II X4 651K
CPU 2: AMD Opteron 6274

Name	AMD Athlon II X4 651K	AMD Opteron 6274
PassMark - Single thread mark		974
PassMark - CPU mark		10313

Compare specifications (specs)

	AMD Athlon II X4 651K	AMD Opteron 6274
Essentials
Architecture codename	Llano	Interlagos
Launch date	November 2011	November 2011
Place in performance rating	not rated	2001
Vertical segment	Desktop	Server
Family		AMD Opteron
Launch price (MSRP)		$909
OPN Tray		OS6274WKTGGGU
Price now		$210
Series		AMD Opteron 6200 Series Processor
Value for money (0-100)		6.82
Performance
64 bit support
Die size	228 mm	316 mm
L1 cache	128 KB (per core)	768 KB
L2 cache	1024 KB (per core)	16 MB
Manufacturing process technology	32 nm	32 nm
Maximum frequency	3 GHz	3.1 GHz
Number of cores	4	16
Transistor count	1178 million	2400 million
Base frequency		2.2 GHz
L3 cache		16 MB
Maximum core temperature		69°C
Number of threads		16
Unlocked
Memory
Supported memory types	DDR3	DDR3
Supported memory frequency		2000 MHz
Compatibility
Max number of CPUs in a configuration	1	2
Sockets supported	FM1	G34
Thermal Design Power (TDP)	100 Watt	115 Watt
Virtualization
AMD Virtualization (AMD-V™)
Advanced Technologies
Fused Multiply-Add (FMA)
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions