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Differences What are the advantages of each

Front view of Intel Xeon E7440

Reasons to consider the
Intel Xeon E7440

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Much more l2 cache 16 MB vs 1 MB 16x more l2 cache; more data can be stored in the l2 cache for quick access later
Supports more CPUs in SMP configuration 32 vs 1 31 supports more CPUs in SMP configuration
Much more l2 cache per core 4 MB/core vs 0.25 MB/core 16x more l2 cache per core
More l3 cache 16 MB vs 8 MB 2x more l3 cache; more data can be stored in the l3 cache for quick access later
Much lower typical power consumption 73.13W vs 114.2W More than 35% lower typical power consumption
Much more l3 cache per core 4 MB/core vs 2 MB/core 2x more l3 cache per core
Significantly better geekbench 3 Multi-Core score 14,135 vs 11,563 More than 20% better geekbench 3 Multi-Core score
Much lower annual home energy cost 21.68 $/year vs 41.8 $/year Around 50% lower annual home energy cost
Significantly lower annual commercial energy cost 78.84 $/year vs 111.78 $/year Around 30% lower annual commercial energy cost
Front view of Intel Core i7 2600K

Reasons to consider the
Intel Core i7 2600K

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Significantly higher clock speed 3.4 GHz vs 2.4 GHz More than 40% higher clock speed
Much better performance per dollar 2.92 pt/$ vs 0.11 pt/$ More than 26.5x better performance per dollar
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better geekbench 3 single core score 3,005 vs 1,170 More than 2.5x better geekbench 3 single core score
Much better overclocked clock speed (Air) 5.05 GHz vs 2.4 GHz More than 2x better overclocked clock speed (Air)
Much better performance per watt 7.53 pt/W vs 2.51 pt/W Around 3x better performance per watt
More threads 8 vs 4 Twice as many threads
Much better overclocked clock speed (Water) 4.76 GHz vs 2.4 GHz Around 2x better overclocked clock speed (Water)
Newer Jan, 2011 vs Sep, 2008 Release date over 2 years later
Higher Maximum operating temperature 72.6 °C vs 68 °C More than 5% higher Maximum operating temperature

Benchmarks Real world tests of Xeon E7440 vs Core i7 2600K

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon E7440
14,135
Core i7 2600K
11,563

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E7440
102,600 MB/s
Core i7 2600K
2,500,000 MB/s

Specifications Full list of technical specs

summary

Xeon E7440  vs
Core i7 2600K 
Clock speed 2.4 GHz 3.4 GHz
Cores Quad core Quad core
Socket type
604
LGA 1155

features

Has a NX bit Yes Yes
Supports trusted computing No 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

integrated graphics

GPU None GPU
Label N/A Intel® HD Graphics 3000
Latest DirectX N/A 10.x
Number of displays supported N/A 2
GPU clock speed N/A 850 MHz
Turbo clock speed N/A 1,350 MHz
3DMark06 N/A 5,275

details

Xeon E7440  vs
Core i7 2600K 
Architecture x86-64 x86-64
Threads 4 8
L2 cache 16 MB 1 MB
L2 cache per core 4 MB/core 0.25 MB/core
L3 cache 16 MB 8 MB
L3 cache per core 4 MB/core 2 MB/core
Manufacture process 45 nm 32 nm
Transistor count 1,900,000,000 995,000,000
Max CPUs 32 1
Clock multiplier 9 34
Voltage range 0.9 - 1.45V 0.85 - 1.45V
Operating temperature Unknown - 68°C Unknown - 72.6°C

overclocking

Overclocked clock speed 2.4 GHz 5.05 GHz
Overclocked clock speed (Water) 2.4 GHz 4.76 GHz
Overclocked clock speed (Air) 2.4 GHz 5.05 GHz

power consumption

TDP 90W 95W
Annual home energy cost 21.68 $/year 41.8 $/year
Annual commercial energy cost 78.84 $/year 111.78 $/year
Performance per watt 2.51 pt/W 7.53 pt/W
Typical power consumption 73.13W 114.2W

bus

Architecture FSB DMI
Number of links 1 1
Intel Xeon E7440
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Intel Core i7 2600K
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