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Front view of AMD Opteron 6276

AMD Opteron 6276

CPUBoss Winner

Differences What are the advantages of each

Front view of AMD Opteron 6378

Reasons to consider the
AMD Opteron 6378

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Higher clock speed 2.4 GHz vs 2.3 GHz Around 5% higher clock speed
Higher turbo clock speed 3.3 GHz vs 3.2 GHz Around 5% higher turbo clock speed
Newer Nov, 2012 vs Nov, 2011 Release date 11 months later
Front view of AMD Opteron 6276

Reasons to consider the
AMD Opteron 6276

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Much better PassMark score 9,011 vs 2,152 Around 4.2x better PassMark score
Much better performance per watt 6.03 pt/W vs 2.97 pt/W More than 2x better performance per watt
Better overclocked clock speed (Air) 3.72 GHz vs 3.6 GHz Around 5% better overclocked clock speed (Air)
Significantly better overclocked clock speed (Water) 2.6 GHz vs 2.4 GHz Around 10% better overclocked clock speed (Water)

Benchmarks Real world tests of Opteron 6378 vs 6276

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Opteron 6378
46,510
Opteron 6276
22,325

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Opteron 6378
1,650 MB/s
Opteron 6276
1,320,000 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Opteron 6378  vs
6276 
Clock speed 2.4 GHz 2.3 GHz
Turbo clock speed 3.3 GHz 3.2 GHz
Cores 16 core 16 core
Socket type
G34
Is unlocked No No

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
AVX 1.1
SSE2
F16C
MMX
SSE4
XOP
AVX
SSE3
SSE
ABM
BMI1
CLMUL
AMD64
SSE4.1
FMA4
FMA3
SSE4.2
CVT16
AMD-V
Supplemental SSE3
AES
TBM

power consumption

TDP 115W 115W
Annual home energy cost 27.7 $/year 27.7 $/year
Annual commercial energy cost 100.74 $/year 100.74 $/year
Performance per watt 2.97 pt/W 6.03 pt/W
Typical power consumption 93.44W 93.44W

memory controller

Memory controller Built-in Built-in
Memory type
DDR3

details

Opteron 6378  vs
6276 
Threads 16 16
L2 cache 16 MB 16 MB
L2 cache per core 1 MB/core 1 MB/core
L3 cache 16 MB 16 MB
L3 cache per core 1 MB/core 1 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 4 4
Clock multiplier 16 16
Operating temperature Unknown - 69°C Unknown - 55°C

overclocking

Overclock popularity 1 1
Overclocked clock speed 3.6 GHz 3.72 GHz
Overclocked clock speed (Water) 2.4 GHz 2.6 GHz
Overclocked clock speed (Air) 3.6 GHz 3.72 GHz

integrated graphics

GPU None None
Label N/A N/A
Latest DirectX N/A N/A
Number of displays supported N/A N/A
GPU clock speed N/A N/A
Turbo clock speed N/A N/A
3DMark06 N/A N/A

bus

Architecture HyperTransport 3.0 HyperTransport 3.0
Transfer rate 6,400 MT/s 6,400 MT/s
Clock speed 3,200 MHz 3,200 MHz
AMD Opteron 6378
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AMD Opteron 6276
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