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Intel Xeon L5640

Front view of Intel Xeon L5640
Front view of Intel Core i7 4770K

Intel Core i7 4770K

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Differences What are the advantages of each

Front view of Intel Xeon L5640

Reasons to consider the
Intel Xeon L5640

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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 12 MB vs 8 MB 50% more l3 cache; more data can be stored in the l3 cache for quick access later
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Significantly lower typical power consumption 48.75W vs 68.25W Around 30% lower typical power consumption
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
Supports more RAM 294,912 MB vs 32,768 MB Supports 9x more RAM
More l2 cache per core 0.33 MB/core vs 0.25 MB/core Around 35% more l2 cache per core
Significantly lower annual home energy cost 14.45 $/year vs 20.24 $/year Around 30% lower annual home energy cost
Significantly lower annual commercial energy cost 52.56 $/year vs 73.58 $/year Around 30% lower annual commercial energy cost
Front view of Intel Core i7 4770K

Reasons to consider the
Intel Core i7 4770K

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Much higher clock speed 3.5 GHz vs 2.26 GHz Around 55% higher clock speed
Significantly higher turbo clock speed 3.9 GHz vs 2.8 GHz Around 40% higher turbo clock speed
Much better performance per dollar 3.83 pt/$ vs 0.63 pt/$ More than 6x better performance per dollar
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Significantly newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better PassMark (Single core) score 2,165 vs 1,100 More than 95% better PassMark (Single core) score
Better PassMark score 10,016 vs 6,451 More than 55% better PassMark score
Newer Jun, 2013 vs Mar, 2010 Release date over 3 years later
Better overclocked clock speed (Air) 4.48 GHz vs 3.9 GHz Around 15% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 4.55 GHz vs 2.27 GHz More than 2x better overclocked clock speed (Water)
Better performance per watt 11.31 pt/W vs 10.46 pt/W Around 10% better performance per watt
Slightly higher Maximum operating temperature 72.72 °C vs 69.4 °C Around 5% higher Maximum operating temperature

Benchmarks Real world tests of Xeon L5640 vs Core i7 4770K

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon L5640
16,852
Core i7 4770K
14,184

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon L5640
1,918
Core i7 4770K
3,689

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon L5640
1,250,000 MB/s
Core i7 4770K
4,810,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Xeon L5640
11,047
Core i7 4770K
14,351

GeekBench

Xeon L5640
11,047
Core i7 4770K
18,498

PassMark Data courtesy Passmark

Xeon L5640
6,451
Core i7 4770K
10,016

PassMark (Single Core)

Xeon L5640
1,100
Core i7 4770K
2,165

Specifications Full list of technical specs

summary

 Xeon L5640  vs
Core i7 4770K 
Clock speed 2.26 GHz 3.5 GHz
Turbo clock speed 2.8 GHz 3.9 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 60W 84W
Annual home energy cost 14.45 $/year 20.24 $/year
Annual commercial energy cost 52.56 $/year 73.58 $/year
Performance per watt 10.46 pt/W 11.31 pt/W
Typical power consumption 48.75W 68.25W

bus
Architecture QPI DMI 2.0
Number of links 2 0
Transfer rate 5,860 MT/s 5,000 MT/s

details

 Xeon L5640  vs
Core i7 4770K 
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 12 MB 8 MB
L3 cache per core 2 MB/core 2 MB/core
Manufacture process 32 nm 22 nm
Max CPUs 2 1
Operating temperature Unknown - 69.4°C Unknown - 72.72°C

overclocking
Overclocked clock speed 3.9 GHz 4.48 GHz
Overclocked clock speed (Water) 2.27 GHz 4.55 GHz
Overclocked clock speed (Air) 3.9 GHz 4.48 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 Triple Channel Dual Channel
Supports ECC Yes No
Maximum bandwidth 31,999.98 MB/s 25,600 MB/s
Maximum memory size 294,912 MB 32,768 MB
Intel Xeon L5640
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Intel Core i7 4770K
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