CPUBoss Review Our evaluation of X5650 vs X5560


Benchmark performance using all cores

PassMark and GeekBench (32-bit)

Single-core Performance

Individual core benchmark performance

PassMark (Single Core)

Cost to Run

Commercial Energy Cost


Performance Per Dollar

CPUBoss Score

Performance, Single-core Performance, Cost to Run and Value

Intel Xeon X5650 

CPUBoss recommends the Intel Xeon X5650  based on its performance.

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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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Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More l3 cache 12 MB vs 8 MB 50% more l3 cache; more data can be stored in the l3 cache for quick access later
Higher Maximum operating temperature 81.3 °C vs 75 °C Around 10% higher Maximum operating temperature
Better geekbench (32-bit) score 13,247 vs 8,859 Around 50% better geekbench (32-bit) score
More cores 6 vs 4 2 more cores; run more applications at once
Better PassMark score 7,606 vs 5,519 Around 40% better PassMark score
Better performance per watt 11.98 pt/W vs 8.7 pt/W Around 40% better performance per watt
Newer Mar, 2010 vs Mar, 2009 Release date 11 months later
Supports more RAM 294,912 MB vs 147,456 MB Supports 2x more RAM
Slightly more l2 cache per core 0.33 MB/core vs 0.25 MB/core Around 35% more l2 cache per core
Better overclocked clock speed (Water) 4.59 GHz vs 4.2 GHz Around 10% better overclocked clock speed (Water)
Front view of Intel Xeon X5560

Reasons to consider the
Intel Xeon X5560

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Much better performance per dollar 27.54 pt/$ vs 11.74 pt/$ More than 2.2x better performance per dollar

Benchmarks Real world tests of Xeon X5650 vs X5560

GeekBench (32-bit) Data courtesy Primate Labs

Xeon X5650
Xeon X5560


Xeon X5650
Xeon X5560

PassMark Data courtesy PassMark

Xeon X5650
Xeon X5560

PassMark (Single Core) Data courtesy PassMark

Xeon X5650
Xeon X5560

Specifications Full list of technical specs


Xeon X5650  vs
Clock speed 2.66 GHz 2.8 GHz
Turbo clock speed 3.06 GHz 3.2 GHz
Cores Hexa core Quad core
Socket type
LGA 1366


Has a NX bit Yes Yes
Supports trusted computing Yes No
Has virtualization support Yes Yes
Instruction set extensions
Supplemental SSE3
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 11.98 pt/W 8.7 pt/W
Typical power consumption 77.19W 77.19W

memory controller

Memory controller Built-in Built-in
Memory type
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 147,456 MB


Xeon X5650  vs
Architecture x86-64 x86-64
Threads 12 8
L2 cache 2 MB 1 MB
L2 cache per core 0.33 MB/core 0.25 MB/core
L3 cache 12 MB 8 MB
L3 cache per core 2 MB/core 2 MB/core
Manufacture process 32 nm 45 nm
Max CPUs 2 2
Clock multiplier 20 21
Voltage range 0.75 - 1.35V 0.75 - 1.35V
Operating temperature Unknown - 81.3°C Unknown - 75°C


Overclocked clock speed 3.52 GHz 3.35 GHz
Overclocked clock speed (Water) 4.59 GHz 4.2 GHz
Overclocked clock speed (Air) 3.52 GHz 3.35 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


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 X5650
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Intel Xeon X5560
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