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Differences What are the advantages of each

Front view of Intel Xeon E7-2803

Reasons to consider the
Intel Xeon E7-2803

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Much more l3 cache 18 MB vs 12 MB 50% more l3 cache; more data can be stored in the l3 cache for quick access later
Supports more RAM 1,048,576 MB vs 294,912 MB Supports more than 3.5x more RAM
Much 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 cores 6 vs 4 2 more cores; run more applications at once
More threads 12 vs 8 4 more threads
More l2 cache per core 0.33 MB/core vs 0.25 MB/core Around 35% more l2 cache per core
Newer Apr, 2011 vs Mar, 2010 Release date over 1 years later
Front view of Intel Xeon E5630

Reasons to consider the
Intel Xeon E5630

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Much higher clock speed 2.53 GHz vs 1.73 GHz More than 45% higher clock speed
Lower typical power consumption 65W vs 85.31W Around 25% lower typical power consumption
Lower annual commercial energy cost 70.08 $/year vs 91.98 $/year Around 25% lower annual commercial energy cost
Lower annual home energy cost 19.27 $/year vs 25.29 $/year Around 25% lower annual home energy cost

Features Key features of the Xeon E7-2803  vs E5630 

clock speed

Xeon E7-2803
1.73 GHz
Xeon E5630
2.53 GHz

L2 cache

L3 cache

Xeon E7-2803
18 MB
Xeon E5630
12 MB


Specifications Full list of technical specs


Xeon E7-2803  vs
Clock speed 1.73 GHz 2.53 GHz
Cores Hexa core Quad core
Socket type
LGA 1567
LGA 1366


Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 105W 80W
Annual home energy cost 25.29 $/year 19.27 $/year
Annual commercial energy cost 91.98 $/year 70.08 $/year
Typical power consumption 85.31W 65W


Architecture QPI QPI
Number of links 1 2
Data rate 19,200 MB/s 46,928 MB/s
Transfer rate 4,800 MT/s 5,860 MT/s
Clock speed 2,400 MHz 2,930 MHz


Xeon E7-2803  vs
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 18 MB 12 MB
L3 cache per core 3 MB/core 3 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 2 2
Clock multiplier 13 19
Operating temperature Unknown - 64°C Unknown - 77.6°C

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

memory controller

Memory controller Built-in Built-in
Memory type
Channels Quad Channel Triple Channel
Supports ECC Yes Yes
Maximum bandwidth 25,600 MB/s 25,599.99 MB/s
Maximum memory size 1,048,576 MB 294,912 MB
Intel Xeon E7-2803
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Intel Xeon E5630
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