Cast your vote Do you agree or disagree with CPUBoss?

Thanks for adding your opinion. Follow us on Facebook to stay up to date with the latest news!
VS

Differences What are the advantages of each

Front view of Intel Xeon E7440

Reasons to consider the
Intel Xeon E7440

Report a correction
Much more l2 cache 16 MB vs 2 MB 8x more l2 cache; more data can be stored in the l2 cache for quick access later
Much more l2 cache per core 4 MB/core vs 0.33 MB/core 12x more l2 cache per core
Supports more CPUs in SMP configuration 32 vs 2 30 supports more CPUs in SMP configuration
Much more l3 cache 16 MB vs 12 MB Around 35% more l3 cache; more data can be stored in the l3 cache for quick access later
Much more l3 cache per core 4 MB/core vs 2 MB/core 2x more l3 cache per core
Front view of Intel Xeon E5645

Reasons to consider the
Intel Xeon E5645

Report a correction
More cores 6 vs 4 2 more cores; run more applications at once
Much better performance per watt 8.49 pt/W vs 2.51 pt/W More than 3.2x better performance per watt
Much better performance per dollar 1.2 pt/$ vs 0.11 pt/$ Around 11x better performance per dollar
More threads 12 vs 4 Three times as many threads
Much better overclocked clock speed (Air) 3.39 GHz vs 2.4 GHz More than 40% better overclocked clock speed (Air)
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Lower typical power consumption 65W vs 73.13W More than 10% lower typical power consumption
Newer Mar, 2010 vs Sep, 2008 Release date over 1 years later
Lower annual commercial energy cost 70.08 $/year vs 78.84 $/year More than 10% lower annual commercial energy cost
Lower annual home energy cost 19.27 $/year vs 21.68 $/year More than 10% lower annual home energy cost

Benchmarks Real world tests of Xeon E7440 vs E5645

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon E7440
14,135
Xeon E5645
20,172

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon E7440
1,170
Xeon E5645
1,968

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E7440
102,600 MB/s
Xeon E5645
1,340,000 MB/s

Specifications Full list of technical specs

summary

Xeon E7440  vs
E5645 
Clock speed 2.4 GHz 2.4 GHz
Cores Quad core Hexa core
Socket type
604
LGA 1366

features

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

power consumption

TDP 90W 80W
Annual home energy cost 21.68 $/year 19.27 $/year
Annual commercial energy cost 78.84 $/year 70.08 $/year
Performance per watt 2.51 pt/W 8.49 pt/W
Typical power consumption 73.13W 65W

bus

Architecture FSB QPI
Number of links 1 2
Clock speed 1,066 MHz 2,930 MHz

details

Xeon E7440  vs
E5645 
Architecture x86-64 x86-64
Threads 4 12
L2 cache 16 MB 2 MB
L2 cache per core 4 MB/core 0.33 MB/core
L3 cache 16 MB 12 MB
L3 cache per core 4 MB/core 2 MB/core
Manufacture process 45 nm 32 nm
Max CPUs 32 2
Clock multiplier 9 18
Voltage range 0.9 - 1.45V 0.75 - 1.35V
Operating temperature Unknown - 68°C Unknown - 76.2°C

overclocking

Overclocked clock speed 2.4 GHz 3.39 GHz
Overclocked clock speed (Water) 2.4 GHz 2.4 GHz
Overclocked clock speed (Air) 2.4 GHz 3.39 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
Intel Xeon E7440
Report a correction
Intel Xeon E5645
Report a correction

Read more

Comments

comments powered by Disqus