CPUBoss Review Our evaluation of X5677 vs E5-2637 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

5.6

CPUBoss Score

Combination of all six facets

Winner
Intel Xeon E5-2637 

CPUBoss recommends the Intel Xeon E5-2637  based on its cost to run.

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VS

Differences What are the advantages of each

Front view of Intel Xeon X5677

Reasons to consider the
Intel Xeon X5677

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Much higher clock speed 3.46 GHz vs 3 GHz More than 15% higher clock speed
Much more l3 cache 12 MB vs 5 MB Around 2.5x more l3 cache; more data can be stored in the l3 cache for quick access later
More cores 4 vs 2 Twice as many cores; run more applications at once
Much better performance per watt 6.45 pt/W vs 3.87 pt/W More than 65% better performance per watt
Much higher Maximum operating temperature 80.4 °C vs 70 °C Around 15% higher Maximum operating temperature
Higher turbo clock speed 3.73 GHz vs 3.5 GHz More than 5% higher turbo clock speed
More threads 8 vs 4 Twice as many threads
More l3 cache per core 3 MB/core vs 2.5 MB/core 20% more l3 cache per core
Front view of Intel Xeon E5-2637

Reasons to consider the
Intel Xeon E5-2637

Report a correction
Much lower typical power consumption 65W vs 105.63W Around 40% lower typical power consumption
Supports more RAM 393,216 MB vs 294,912 MB Supports around 35% more RAM
Much more l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Much lower annual commercial energy cost 70.08 $/year vs 113.88 $/year Around 40% lower annual commercial energy cost
Much lower annual home energy cost 19.27 $/year vs 31.32 $/year Around 40% lower annual home energy cost
Newer Mar, 2012 vs Mar, 2010 Release date over 2 years later

Benchmarks Real world tests of Xeon X5677 vs E5-2637

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon X5677
18,912
Xeon E5-2637
22,418

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon X5677
2,580
Xeon E5-2637
3,333

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon X5677
1,770,000 MB/s
Xeon E5-2637
4,060 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Xeon X5677
11,584
Xeon E5-2637
11,201

GeekBench

Xeon X5677
11,584
Xeon E5-2637
11,201

PassMark Data courtesy Passmark

Xeon X5677
6,984
Xeon E5-2637
10,051

PassMark (Single Core)

Xeon X5677
1,519
Xeon E5-2637
1,967

Specifications Full list of technical specs

summary

Xeon X5677  vs
E5-2637 
Clock speed 3.46 GHz 3 GHz
Turbo clock speed 3.73 GHz 3.5 GHz
Cores Quad core Dual 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 130W 80W
Annual home energy cost 31.32 $/year 19.27 $/year
Annual commercial energy cost 113.88 $/year 70.08 $/year
Performance per watt 6.45 pt/W 3.87 pt/W
Typical power consumption 105.63W 65W

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

details

Xeon X5677  vs
E5-2637 
Architecture x86-64 x86-64
Threads 8 4
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
L3 cache 12 MB 5 MB
L3 cache per core 3 MB/core 2.5 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 2 2
Clock multiplier 26 35
Voltage range 0.75 - 1.35V 0.6 - 1.35V
Operating temperature Unknown - 80.4°C Unknown - 70°C

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

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
Intel Xeon X5677
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Intel Xeon E5-2637
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