CPUBoss Review Our evaluation of X5650 vs E5503 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

5.3

CPUBoss Score

Combination of all six facets

Winner
Intel Xeon X5650 

CPUBoss recommends the Intel Xeon X5650  based on its performance, single-core performance and value.

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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 2 GHz Around 35% higher clock speed
Much more l3 cache 12 MB vs 4 MB 3x more l3 cache; more data can be stored in the l3 cache for quick access later
More cores 6 vs 2 Three times as many cores; run more applications at once
Much more l2 cache 2 MB vs 1 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Much better PassMark score 7,510 vs 1,383 Around 5.5x better PassMark score
More threads 12 vs 2 10 more threads
Much better performance per watt 7.89 pt/W vs 0.96 pt/W Around 8.2x better performance per watt
Much better performance per dollar 1.44 pt/$ vs 0.39 pt/$ Around 3.8x better performance per dollar
Much higher Maximum operating temperature 81.3 °C vs 76 °C More than 5% higher Maximum operating temperature
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Much better overclocked clock speed (Air) 3.84 GHz vs 3.3 GHz More than 15% better overclocked clock speed (Air)
Supports more RAM 294,912 MB vs 147,456 MB Supports 2x more RAM
Newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better overclocked clock speed (Water) 4.64 GHz vs 3.33 GHz Around 40% better overclocked clock speed (Water)
Front view of Intel Xeon E5503

Reasons to consider the
Intel Xeon E5503

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Lower typical power consumption 65W vs 77.19W More than 15% lower typical power consumption
Significantly more l2 cache per core 0.5 MB/core vs 0.33 MB/core More than 50% more l2 cache per core
Lower annual commercial energy cost 70.08 $/year vs 83.22 $/year More than 15% lower annual commercial energy cost
Lower annual home energy cost 19.27 $/year vs 22.89 $/year More than 15% lower annual home energy cost

Benchmarks Real world tests of Xeon X5650 vs E5503

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon X5650
22,313
Xeon E5503
4,704

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon X5650
2,176
Xeon E5503
1,329

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon X5650
1,470,000 MB/s
Xeon E5503
86.2 MB/s

PassMark Data courtesy Passmark

Xeon X5650
7,510
Xeon E5503
1,383

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon X5650  vs
E5503 
Clock speed 2.66 GHz 2 GHz
Cores Hexa core Dual core
Socket type
LGA 1366

features

Has a NX bit Yes Yes
Supports trusted computing Yes No
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 80W
Annual home energy cost 22.89 $/year 19.27 $/year
Annual commercial energy cost 83.22 $/year 70.08 $/year
Performance per watt 7.89 pt/W 0.96 pt/W
Typical power consumption 77.19W 65W

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 19,200 MB/s
Maximum memory size 294,912 MB 147,456 MB

details

Xeon X5650  vs
E5503 
Architecture x86-64 x86-64
Threads 12 2
L2 cache 2 MB 1 MB
L2 cache per core 0.33 MB/core 0.5 MB/core
L3 cache 12 MB 4 MB
L3 cache per core 2 MB/core 2 MB/core
Manufacture process 32 nm 45 nm
Max CPUs 2 2
Clock multiplier 20 15
Voltage range 0.75 - 1.35V 0.75 - 1.35V
Operating temperature Unknown - 81.3°C Unknown - 76°C

overclocking

Overclocked clock speed 3.84 GHz 3.3 GHz
Overclocked clock speed (Water) 4.64 GHz 3.33 GHz
Overclocked clock speed (Air) 3.84 GHz 3.3 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 38,400 MB/s
Transfer rate 6,400 MT/s 4,800 MT/s
Clock speed 3,200 MHz 2,400 MHz
Intel Xeon X5650
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Intel Xeon E5503
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