CPUBoss Review Our evaluation of X5650 vs E5-2665 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

Intel Xeon X5650

CPUBoss Winner
Front view of Intel Xeon X5650

Differences What are the advantages of each

Front view of Intel Xeon X5650

Reasons to consider the
Intel Xeon X5650

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Significantly higher clock speed 2.66 GHz vs 2.4 GHz More than 10% higher clock speed
Much better performance per dollar 1.44 pt/$ vs 0.56 pt/$ More than 2.5x better performance per dollar
Much better overclocked clock speed (Air) 3.84 GHz vs 2.71 GHz More than 40% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 4.64 GHz vs 2.96 GHz More than 55% better overclocked clock speed (Water)
Lower typical power consumption 77.19W vs 93.44W More than 15% lower typical power consumption
More l2 cache per core 0.33 MB/core vs 0.25 MB/core Around 35% more l2 cache per core
Lower annual commercial energy cost 83.22 $/year vs 100.74 $/year More than 15% lower annual commercial energy cost
Lower annual home energy cost 22.89 $/year vs 27.7 $/year More than 15% lower annual home energy cost
Front view of Intel Xeon E5-2665

Reasons to consider the
Intel Xeon E5-2665

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Much more l3 cache 20 MB vs 12 MB More than 65% more l3 cache; more data can be stored in the l3 cache for quick access later
Much better PassMark (Single core) score 1,521 vs 1,234 Around 25% better PassMark (Single core) score
More threads 16 vs 12 4 more threads
Supports more RAM 393,216 MB vs 294,912 MB Supports around 35% more RAM
More l3 cache per core 2.5 MB/core vs 2 MB/core 25% more l3 cache per core
Newer Mar, 2012 vs Mar, 2010 Release date over 2 years later

Benchmarks Real world tests of Xeon X5650 vs E5-2665

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon X5650
22,313
Xeon E5-2665
15,331

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon X5650
2,176
Xeon E5-2665
2,292

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon X5650
1,470,000 MB/s
Xeon E5-2665
1,640,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Xeon X5650
13,247
Xeon E5-2665
19,366

GeekBench

Xeon X5650
14,009
Xeon E5-2665
19,366

PassMark Data courtesy Passmark

Xeon X5650
7,510
Xeon E5-2665
11,941

PassMark (Single Core)

Xeon X5650
1,234
Xeon E5-2665
1,521

Specifications Full list of technical specs

summary

Xeon X5650  vs
E5-2665 
Clock speed 2.66 GHz 2.4 GHz
Turbo clock speed 3.06 GHz 3.1 GHz
Cores Hexa core Octa core
Socket type
LGA 1366
LGA 2011

features

Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 95W 115W
Annual home energy cost 22.89 $/year 27.7 $/year
Annual commercial energy cost 83.22 $/year 100.74 $/year
Performance per watt 7.89 pt/W 7.04 pt/W
Typical power consumption 77.19W 93.44W

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3-1333
DDR3-1066
DDR3
DDR3-800
Channels Triple Channel Quad Channel
Supports ECC Yes Yes
Maximum bandwidth 31,999.98 MB/s 51,200 MB/s
Maximum memory size 294,912 MB 393,216 MB

details

Xeon X5650  vs
E5-2665 
Architecture x86-64 x86-64
Threads 12 16
L2 cache 2 MB 2 MB
L2 cache per core 0.33 MB/core 0.25 MB/core
L3 cache 12 MB 20 MB
L3 cache per core 2 MB/core 2.5 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 2 2
Clock multiplier 20 31
Voltage range 0.75 - 1.35V 0.6 - 1.35V
Operating temperature Unknown - 81.3°C Unknown - 81.8°C

overclocking

Overclock popularity 11 0
Overclocked clock speed 3.84 GHz 2.71 GHz
Overclocked clock speed (Water) 4.64 GHz 2.96 GHz
Overclocked clock speed (Air) 3.84 GHz 2.71 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 QPI
Number of links 2 2
Data rate 51,200 MB/s 64,000 MB/s
Transfer rate 6,400 MT/s 8,000 MT/s
Clock speed 3,200 MHz 4,000 MHz
Intel Xeon X5650
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Intel Xeon E5-2665
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