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Differences What are the advantages of each

Front view of Intel Xeon X7550

Reasons to consider the
Intel Xeon X7550

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Supports more CPUs in SMP configuration 8 vs 1 7 supports more CPUs in SMP configuration
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
Significantly more l3 cache 18 MB vs 8 MB 2.2x more l3 cache; more data can be stored in the l3 cache for quick access later
More cores 8 vs 4 Twice as many cores; run more applications at once
More threads 16 vs 8 Twice as many threads
More l3 cache per core 2.25 MB/core vs 2 MB/core Around 15% more l3 cache per core
Front view of Intel Core i7 4790K

Reasons to consider the
Intel Core i7 4790K

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Much higher clock speed 4 GHz vs 2 GHz 2x higher clock speed
Much higher turbo clock speed 4.4 GHz vs 2.4 GHz Around 85% higher turbo clock speed
Much newer manufacturing process 22 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much lower typical power consumption 71.5W vs 105.63W More than 30% lower typical power consumption
Much better overclocked clock speed (Air) 4.63 GHz vs 2.4 GHz Around 95% better overclocked clock speed (Air)
Newer Apr, 2014 vs Mar, 2010 Release date over 4 years later
Much better overclocked clock speed (Water) 4.8 GHz vs 2.4 GHz Around 2x better overclocked clock speed (Water)
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
Higher Maximum operating temperature 74.04 °C vs 69 °C More than 5% higher Maximum operating temperature

Features Key features of the Xeon X7550  vs Core i7 4790K 

clock speed

turbo clock speed

Xeon X7550
2.4 GHz
Core i7 4790K
4.4 GHz

L2 cache

L3 cache

overclocked clock speed (air)

Xeon X7550
2.4 GHz
Core i7 4790K
4.63 GHz

overclocked clock speed (water)

Xeon X7550
2.4 GHz
Core i7 4790K
4.8 GHz

Specifications Full list of technical specs

summary

Xeon X7550  vs
Core i7 4790K 
Clock speed 2 GHz 4 GHz
Turbo clock speed 2.4 GHz 4.4 GHz
Cores Octa core Quad core

features

Has a NX bit Yes Yes
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
Typical power consumption 105.63W 71.5W

bus

Architecture QPI DMI 2.0
Number of links 4 0
Transfer rate 6,400 MT/s 5,000 MT/s

details

Xeon X7550  vs
Core i7 4790K 
Threads 16 8
L2 cache 2 MB 1 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 18 MB 8 MB
L3 cache per core 2.25 MB/core 2 MB/core
Manufacture process 45 nm 22 nm
Max CPUs 8 1
Operating temperature Unknown - 69°C Unknown - 74.04°C

overclocking

Overclocked clock speed 2.4 GHz 4.63 GHz
Overclocked clock speed (Water) 2.4 GHz 4.8 GHz
Overclocked clock speed (Air) 2.4 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
DDR
Intel Xeon X7550
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Intel Core i7 4790K
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