CPUBoss Review Our evaluation of E5-1660 vs 980X among all CPUs

Performance

Benchmark performance using all cores
Xeon E5-1660
6.9
Core i7 980X
6.3
Core i7 4770K
7.4
PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance
Xeon E5-1660
8.0
Core i7 980X
7.3
Core i7 4770K
9.4
PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics
Xeon E5-1660
0.0
Core i7 980X
0.0
Core i7 4770K
7.3
Sky Diver and Cloud Gate

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing
Xeon E5-1660
0.0
Core i7 980X
0.0
Core i7 4770K
7.7
CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?
Xeon E5-1660
5.0
Core i7 980X
5.0
Core i7 4770K
5.2
Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?
Xeon E5-1660
5.1
Core i7 980X
5.0
Core i7 4770K
5.8
Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more
5.4

CPUBoss Score

Combination of all six facets
Xeon E5-1660
5.4
Core i7 980X
5.3
Core i7 4770K
8.5

Winner
Intel Xeon E5-1660 

CPUBoss recommends the Intel Xeon E5-1660  based on its performance, single-core performance and value.

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VS

Intel Xeon E5-1660

Front view of Intel Xeon E5-1660
Front view of Intel Core i7 980X

Intel Core i7 980X

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Differences What are the advantages of each

Front view of Intel Xeon E5-1660

Reasons to consider the
Intel Xeon E5-1660

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Higher turbo clock speed 3.9 GHz vs 3.6 GHz Around 10% higher turbo clock speed
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Significantly better performance per watt 8.49 pt/W vs 4.36 pt/W Around 95% better performance per watt
Newer Mar, 2012 vs Mar, 2010 Release date over 2 years later
Better PassMark (Single core) score 1,767 vs 1,454 More than 20% better PassMark (Single core) score
More l3 cache per core 2.5 MB/core vs 2 MB/core 25% more l3 cache per core
Significantly lower annual home energy cost 31.32 $/year vs 50.68 $/year Around 40% lower annual home energy cost
Supports more RAM 262,144 MB vs 24,576 MB Supports around 10.8x more RAM
Lower annual commercial energy cost 113.88 $/year vs 148.92 $/year Around 25% lower annual commercial energy cost
Front view of Intel Core i7 980X

Reasons to consider the
Intel Core i7 980X

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Higher Maximum operating temperature 67.9 °C vs 64 °C More than 5% higher Maximum operating temperature

Benchmarks Real world tests of Xeon E5-1660 vs Core i7 980X

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon E5-1660
18,215
Core i7 980X
14,564

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon E5-1660
3,242
Core i7 980X
2,586

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E5-1660
2,340,000 MB/s
Core i7 980X
1,710,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Xeon E5-1660
18,846
Core i7 980X
14,533

GeekBench (64-bit) Data courtesy Primate Labs

Xeon E5-1660
24,702
Core i7 980X
15,418

GeekBench

Xeon E5-1660
24,702
Core i7 980X
15,418

PassMark Data courtesy Passmark

Xeon E5-1660
14,267
Core i7 980X
8,886

PassMark (Single Core)

Xeon E5-1660
1,767
Core i7 980X
1,454

Specifications Full list of technical specs

summary

 Xeon E5-1660  vs
Core i7 980X 
Clock speed 3.3 GHz 3.33 GHz
Turbo clock speed 3.9 GHz 3.6 GHz
Cores Hexa core Hexa core
Socket type
LGA 2011
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
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption
TDP 130W 130W
Annual home energy cost 31.32 $/year 50.68 $/year
Annual commercial energy cost 113.88 $/year 148.92 $/year
Performance per watt 8.49 pt/W 4.36 pt/W
Typical power consumption 105.63W N/A

memory controller
Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3-1333
DDR3-1066
DDR3
DDR3-800
Channels Quad Channel Triple Channel
Supports ECC Yes No
Maximum bandwidth 51,200 MB/s 25,599.99 MB/s
Maximum memory size 262,144 MB 24,576 MB

details

 Xeon E5-1660  vs
Core i7 980X 
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 15 MB 12 MB
L3 cache per core 2.5 MB/core 2 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 1 1
Clock multiplier 39 25
Voltage range 0.6 - 1.35V 0.8 - 1.38V
Operating temperature Unknown - 64°C Unknown - 67.9°C

overclocking
Overclock popularity 1 85
Overclocked clock speed 4.84 GHz 4.53 GHz
Overclocked clock speed (Water) 4.74 GHz 4.28 GHz
Overclocked clock speed (Air) 4.84 GHz 4.53 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 0 1
Transfer rate 0 MT/s 6,400 MT/s
Clock speed 0 MHz 3,200 MHz
Intel Xeon E5-1660
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Intel Core i7 980X
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