CPUBoss Review Our evaluation of X5650 vs 6366 HE among all CPUs

Performance

Benchmark performance using all cores

PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Sky Diver and Cloud Gate

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

No winner declared

Too close to call

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VS

Differences What are the advantages of each

Front view of Intel Xeon X5650

Reasons to consider the
Intel Xeon X5650

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Much higher clock speed 2.66 GHz vs 1.8 GHz Around 50% higher clock speed
Much better performance per watt 7.89 pt/W vs 2.3 pt/W Around 3.5x better performance per watt
Much higher Maximum operating temperature 81.3 °C vs 65 °C More than 25% higher Maximum operating temperature
Much better overclocked clock speed (Air) 3.84 GHz vs 3.1 GHz Around 25% better overclocked clock speed (Air)
Much more l3 cache per core 2 MB/core vs 1 MB/core 2x more l3 cache per core
Much better overclocked clock speed (Water) 4.64 GHz vs 3.1 GHz Around 50% better overclocked clock speed (Water)
Front view of AMD Opteron 6366 HE

Reasons to consider the
AMD Opteron 6366 HE

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Much more l2 cache 16 MB vs 2 MB 8x more l2 cache; more data can be stored in the l2 cache for quick access later
Much more l3 cache 16 MB vs 12 MB Around 35% more l3 cache; more data can be stored in the l3 cache for quick access later
Much more l2 cache per core 1 MB/core vs 0.33 MB/core More than 3x more l2 cache per core
More threads 16 vs 12 4 more threads
Supports more CPUs in SMP configuration 4 vs 2 Twice as many CPUs in SMP configuration
Lower typical power consumption 69.06W vs 77.19W More than 10% lower typical power consumption
Newer Nov, 2012 vs Mar, 2010 Release date over 2 years later
Lower annual commercial energy cost 74.46 $/year vs 83.22 $/year More than 10% lower annual commercial energy cost
Lower annual home energy cost 20.48 $/year vs 22.89 $/year More than 10% lower annual home energy cost

Benchmarks Real world tests of Xeon X5650 vs Opteron 6366 HE

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon X5650  vs
Opteron 6366 HE 
Clock speed 2.66 GHz 1.8 GHz
Turbo clock speed 3.06 GHz 3.1 GHz
Cores Hexa core 16 core
Socket type
LGA 1366
G34

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
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 95W 85W
Annual home energy cost 22.89 $/year 20.48 $/year
Annual commercial energy cost 83.22 $/year 74.46 $/year
Performance per watt 7.89 pt/W 2.3 pt/W
Typical power consumption 77.19W 69.06W

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1333
DDR3-1066
DDR3-800
DDR3
Channels Triple Channel Quad Channel
Supports ECC Yes Yes
Maximum bandwidth 31,999.98 MB/s 25,600 MB/s

details

Xeon X5650  vs
Opteron 6366 HE 
Threads 12 16
L2 cache 2 MB 16 MB
L2 cache per core 0.33 MB/core 1 MB/core
L3 cache 12 MB 16 MB
L3 cache per core 2 MB/core 1 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 2 4
Clock multiplier 20 9
Operating temperature Unknown - 81.3°C Unknown - 65°C

overclocking

Overclock popularity 11 0
Overclocked clock speed 3.84 GHz 3.1 GHz
Overclocked clock speed (Water) 4.64 GHz 3.1 GHz
Overclocked clock speed (Air) 3.84 GHz 3.1 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 QPI HyperTransport 3.0
Transfer rate 6,400 MT/s 6,400 MT/s
Clock speed 3,200 MHz 3,200 MHz
Intel Xeon X5650
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AMD Opteron 6366 HE
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