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Intel Xeon X5675

Front view of Intel Xeon X5675
Front view of Intel Xeon X5650

Intel Xeon X5650

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Differences What are the advantages of each

Front view of Intel Xeon X5675

Reasons to consider the
Intel Xeon X5675

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Much higher clock speed 3.06 GHz vs 2.66 GHz More than 15% higher clock speed
Much better PassMark (Single core) score 1,405 vs 1,234 Around 15% better PassMark (Single core) score
Significantly higher turbo clock speed 3.46 GHz vs 3.06 GHz Around 15% higher turbo clock speed
Much better overclocked clock speed (Air) 4.29 GHz vs 3.84 GHz More than 10% better overclocked clock speed (Air)
Better overclocked clock speed (Water) 4.77 GHz vs 4.64 GHz Around 5% better overclocked clock speed (Water)
Newer Feb, 2011 vs Mar, 2010 Release date 11 months later
Front view of Intel Xeon X5650

Reasons to consider the
Intel Xeon X5650

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Much better performance per dollar 1.44 pt/$ vs 0.6 pt/$ Around 2.5x better performance per dollar

Benchmarks Real world tests of Xeon X5675 vs X5650

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon X5675
25,323
Xeon X5650
22,313

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon X5675
2,418
Xeon X5650
2,176

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon X5675
1,650,000 MB/s
Xeon X5650
1,470,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Xeon X5675
13,025
Xeon X5650
13,247

GeekBench

Xeon X5675
13,025
Xeon X5650
14,009

PassMark Data courtesy Passmark

Xeon X5675
8,527
Xeon X5650
7,510

PassMark (Single Core)

Xeon X5675
1,405
Xeon X5650
1,234

Specifications Full list of technical specs

summary

 Xeon X5675  vs
X5650 
Clock speed 3.06 GHz 2.66 GHz
Turbo clock speed 3.46 GHz 3.06 GHz
Cores Hexa core Hexa core
Socket type
LGA 1366

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

power consumption
TDP 95W 95W
Annual home energy cost 22.89 $/year 22.89 $/year
Annual commercial energy cost 83.22 $/year 83.22 $/year
Performance per watt 8.89 pt/W 7.89 pt/W
Typical power consumption 77.19W 77.19W

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

details

 Xeon X5675  vs
X5650 
Architecture x86-64 x86-64
Threads 12 12
L2 cache 2 MB 2 MB
L2 cache per core 0.33 MB/core 0.33 MB/core
L3 cache 12 MB 12 MB
L3 cache per core 2 MB/core 2 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 2 2
Clock multiplier 23 20
Voltage range 0.75 - 1.35V 0.75 - 1.35V
Operating temperature Unknown - 81.3°C Unknown - 81.3°C

overclocking
Overclock popularity 2 11
Overclocked clock speed 4.29 GHz 3.84 GHz
Overclocked clock speed (Water) 4.77 GHz 4.64 GHz
Overclocked clock speed (Air) 4.29 GHz 3.84 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 51,200 MB/s
Transfer rate 6,400 MT/s 6,400 MT/s
Clock speed 3,200 MHz 3,200 MHz
Intel Xeon X5675
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Intel Xeon X5650
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