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Intel Xeon E7-2870

Front view of Intel Xeon E7-2870
Front view of Intel Core i7 6700K

Intel Core i7 6700K

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Differences What are the advantages of each

Front view of Intel Xeon E7-2870

Reasons to consider the
Intel Xeon E7-2870

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Much more l2 cache 3 MB vs 1 MB 3x more l2 cache; more data can be stored in the l2 cache for quick access later
Much more l3 cache 30 MB vs 8 MB 3.8x more l3 cache; more data can be stored in the l3 cache for quick access later
More cores 10 vs 4 6 more cores; run more applications at once
More threads 20 vs 8 12 more threads
Supports more RAM 1,048,576 MB vs 65,536 MB Supports 16x more RAM
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Significantly more l3 cache per core 3 MB/core vs 2 MB/core 50% more l3 cache per core
Higher Maximum operating temperature 69 °C vs 64 °C Around 10% higher Maximum operating temperature
Front view of Intel Core i7 6700K

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Intel Core i7 6700K

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Much higher clock speed 4 GHz vs 2.4 GHz More than 65% higher clock speed
Much higher turbo clock speed 4.2 GHz vs 2.8 GHz More than 50% higher turbo clock speed
Much better geekbench 3 Multi-Core score 17,583 vs 2,429 Around 7.2x better geekbench 3 Multi-Core score
Much newer manufacturing process 14 nm vs 32 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 better geekbench 3 AES single core score 6,010 MB/s vs 963.6 MB/s Around 6.2x better geekbench 3 AES single core score
Much better performance per dollar 0.91 pt/$ vs 0.01 pt/$ Around 69x better performance per dollar
Much lower typical power consumption 73.94W vs 105.63W 30% lower typical power consumption
Much better overclocked clock speed (Air) 4.61 GHz vs 2.4 GHz More than 90% better overclocked clock speed (Air)
Significantly better performance per watt 3.49 pt/W vs 0.43 pt/W Around 8.2x better performance per watt
Newer Jul, 2015 vs Apr, 2011 Release date over 4 years later
Much better overclocked clock speed (Water) 4.77 GHz vs 2.4 GHz Around 2x better overclocked clock speed (Water)
Much lower annual home energy cost 21.92 $/year vs 31.32 $/year 30% lower annual home energy cost
Much lower annual commercial energy cost 79.72 $/year vs 113.88 $/year More than 30% lower annual commercial energy cost

Benchmarks Real world tests of Xeon E7-2870 vs Core i7 6700K

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon E7-2870
2,429
Core i7 6700K
17,583

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon E7-2870
1,293
Core i7 6700K
4,510

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E7-2870
963.6 MB/s
Core i7 6700K
6,010 MB/s

Specifications Full list of technical specs

summary

 Xeon E7-2870  vs
Core i7 6700K 
Clock speed 2.4 GHz 4 GHz
Turbo clock speed 2.8 GHz 4.2 GHz
Cores Deca core Quad core

features
Has a NX bit Yes Yes
Supports trusted computing Yes No
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption
TDP 130W 91W
Annual home energy cost 31.32 $/year 21.92 $/year
Annual commercial energy cost 113.88 $/year 79.72 $/year
Performance per watt 0.43 pt/W 3.49 pt/W
Typical power consumption 105.63W 73.94W

bus
Architecture QPI FSB
Number of links 1 0
Transfer rate 6,400 MT/s 8,000 MT/s

details

 Xeon E7-2870  vs
Core i7 6700K 
Architecture x86-64 x86-64
Threads 20 8
L2 cache 3 MB 1 MB
L2 cache per core 0.3 MB/core 0.25 MB/core
L3 cache 30 MB 8 MB
L3 cache per core 3 MB/core 2 MB/core
Manufacture process 32 nm 14 nm
Max CPUs 2 1
Operating temperature Unknown - 69°C Unknown - 64°C

overclocking
Overclocked clock speed 2.4 GHz 4.61 GHz
Overclocked clock speed (Water) 2.4 GHz 4.77 GHz
Overclocked clock speed (Air) 2.4 GHz 4.61 GHz

integrated graphics
GPU None GPU
Label N/A Intel® HD Graphics 530
Number of displays supported N/A 3
GPU clock speed N/A 350 MHz
Turbo clock speed N/A 1,150 MHz

memory controller
Memory controller Built-in Built-in
Memory type
DDR3L-1600
DDR3
DDR
Channels Quad Channel Dual Channel
Supports ECC Yes No
Maximum bandwidth 25,600 MB/s 25,600 MB/s
Maximum memory size 1,048,576 MB 65,536 MB
Intel Xeon E7-2870
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Intel Core i7 6700K
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