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Intel Xeon E5-1660

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Front view of Intel Xeon E5-1660

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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Significantly 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
More l3 cache 15 MB vs 8 MB Around 90% more l3 cache; more data can be stored in the l3 cache for quick access later
Significantly better PassMark score 16,462 vs 11,194 More than 45% better PassMark score
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
More cores 6 vs 4 2 more cores; run more applications at once
More threads 12 vs 8 4 more threads
More l3 cache per core 2.5 MB/core vs 2 MB/core 25% more l3 cache per core
Supports more RAM 262,144 MB vs 32,768 MB Supports 8x more RAM
More l2 cache per core 0.33 MB/core vs 0.25 MB/core Around 35% more l2 cache per core
Front view of Intel Core i7 4790K

Reasons to consider the
Intel Core i7 4790K

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Much better performance per dollar 3.69 pt/$ vs 1.02 pt/$ More than 3.5x better performance per dollar
Higher clock speed 4 GHz vs 3.3 GHz More than 20% higher clock speed
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Higher turbo clock speed 4.4 GHz vs 3.9 GHz Around 15% higher turbo clock speed
Significantly newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much lower typical power consumption 71.5W vs 105.63W More than 30% lower typical power consumption
Better PassMark (Single core) score 2,530 vs 2,082 More than 20% better PassMark (Single core) score
Better performance per watt 11.42 pt/W vs 8.67 pt/W More than 30% better performance per watt
Higher Maximum operating temperature 74.04 °C vs 64 °C More than 15% higher Maximum operating temperature
Newer Apr, 2014 vs Mar, 2012 Release date over 2 years later
Much lower annual home energy cost 21.2 $/year vs 31.32 $/year More than 30% lower annual home energy cost
Much lower annual commercial energy cost 77.09 $/year vs 113.88 $/year More than 30% lower annual commercial energy cost

Benchmarks Real world tests of Xeon E5-1660 vs Core i7 4790K

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon E5-1660
18,215
Core i7 4790K
15,490

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E5-1660
2,340,000 MB/s
Core i7 4790K
5,140,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Xeon E5-1660
18,846
Core i7 4790K
15,465

GeekBench (64-bit) Data courtesy Primate Labs

Xeon E5-1660
24,702
Core i7 4790K
16,653

GeekBench

Xeon E5-1660
24,702
Core i7 4790K
16,653

PassMark Data courtesy Passmark

Xeon E5-1660
16,462
Core i7 4790K
11,194

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon E5-1660  vs
Core i7 4790K 
Clock speed 3.3 GHz 4 GHz
Turbo clock speed 3.9 GHz 4.4 GHz
Cores Hexa core Quad core

features

Has a NX bit Yes Yes
Supports trusted computing Yes No
Has virtualization support Yes Yes
Instruction set extensions
SSE2
F16C
MMX
SSE4
AVX
SSE3
EM64T
SSE
SSE4.1
FMA3
SSE4.2
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 130W 88W
Annual home energy cost 31.32 $/year 21.2 $/year
Annual commercial energy cost 113.88 $/year 77.09 $/year
Performance per watt 8.67 pt/W 11.42 pt/W
Typical power consumption 105.63W 71.5W

bus

Architecture QPI DMI 2.0
Number of links 0 0
Transfer rate 0 MT/s 5,000 MT/s

details

Xeon E5-1660  vs
Core i7 4790K 
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 15 MB 8 MB
L3 cache per core 2.5 MB/core 2 MB/core
Manufacture process 32 nm 22 nm
Max CPUs 1 1
Operating temperature Unknown - 64°C Unknown - 74.04°C

overclocking

Overclocked clock speed 4.79 GHz 4.63 GHz
Overclocked clock speed (Water) 4.8 GHz 4.8 GHz
Overclocked clock speed (Air) 4.79 GHz 4.63 GHz

integrated graphics

GPU None GPU
Label N/A Intel® HD Graphics 4600
Number of displays supported N/A 3
GPU clock speed N/A 350 MHz
Turbo clock speed N/A 1,250 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3L-1600
DDR3-1333
DDR3-1066
DDR3
DDR3-800
Channels Quad Channel Dual Channel
Supports ECC Yes No
Maximum bandwidth 51,200 MB/s 25,600 MB/s
Maximum memory size 262,144 MB 32,768 MB
Intel Xeon E5-1660
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Intel Core i7 4790K
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