Opteron 6278 vs Athlon II X4 631

Place in the ranking	2238	863
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Server
Power efficiency	1.27	7.11
Architecture codename	Llano (2011−2012)	Interlagos (2011−2012)
Release date	17 August 2011 (13 years ago)	1 May 2012 (12 years ago)

Detailed specifications

Athlon II X4 631 and Opteron 6278 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	4 (Quad-Core)	16 (Hexadeca-Core)
Threads	4	16
Base clock speed	2.6 GHz	2.4 GHz
Boost clock speed	2.6 GHz	3.3 GHz
L1 cache	128 KB (per core)	768 KB
L2 cache	1 MB (per core)	16 MB
L3 cache	0 KB	8 MB (per die)
Chip lithography	32 nm	32 nm
Die size	228 mm²	316 mm²
Number of transistors	1,178 million	2,400 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Athlon II X4 631 and Opteron 6278 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	1	4
Socket	FM1	G34
Power consumption (TDP)	100 Watt	115 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Athlon II X4 631 and Opteron 6278. You'll probably need this information if you require some particular technology.

AES-NI	-	+
FMA	-	+
AVX	-	+

Virtualization technologies

Virtual machine speed-up technologies supported by Athlon II X4 631 and Opteron 6278 are enumerated here.

AMD-V

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon II X4 631 and Opteron 6278. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR3

Peripherals

Specifications and connection of peripherals supported by Athlon II X4 631 and Opteron 6278.

PCIe version

no data

2.0

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Athlon II X4 631 1.39

Opteron 6278 8.97
+545%

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

Athlon II X4 631 2122

Opteron 6278 13733
+547%

Gaming performance

Pros & cons summary

Performance score	1.39	8.97
Recency	17 August 2011	1 May 2012
Physical cores	4	16
Threads	4	16
Power consumption (TDP)	100 Watt	115 Watt

Athlon II X4 631 has 15% lower power consumption.

Opteron 6278, on the other hand, has a 545.3% higher aggregate performance score, an age advantage of 8 months, and 300% more physical cores and 300% more threads.

The Opteron 6278 is our recommended choice as it beats the Athlon II X4 631 in performance tests.

Note that Athlon II X4 631 is a desktop processor while Opteron 6278 is a server/workstation one.

Should you still have questions on choice between Athlon II X4 631 and Opteron 6278, ask them in Comments section, and we shall answer.