CPUBoss Review Our evaluation of E3-1276 v3 vs 4790K among all CPUs

Performance

Benchmark performance using all cores

PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Sky Diver and Cloud Gate

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

8.8

CPUBoss Score

Combination of all six facets

Winner
Intel Core i7 4790K 

CPUBoss recommends the Intel Core i7 4790K  based on its performance and value.

See full details

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VS
Front view of Intel Core i7 4790K

Intel Core i7 4790K

CPUBoss Winner

Differences What are the advantages of each

Front view of Intel Xeon E3-1276 v3

Reasons to consider the
Intel Xeon E3-1276 v3

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Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Front view of Intel Core i7 4790K

Reasons to consider the
Intel Core i7 4790K

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Much better performance per dollar 3.69 pt/$ vs 0.83 pt/$ Around 4.5x better performance per dollar
Higher clock speed 4 GHz vs 3.6 GHz More than 10% higher clock speed
Higher turbo clock speed 4.4 GHz vs 4 GHz More than 10% higher turbo clock speed
Much better performance per watt 11.42 pt/W vs 3.4 pt/W More than 3.2x better performance per watt
Significantly better overclocked clock speed (Air) 4.63 GHz vs 3.6 GHz Around 30% better overclocked clock speed (Air)
Better CompuBench 1.5 face detection score 18.33 mPixels/s vs 18.04 mPixels/s Almost the same
Better PassMark (Single core) score 2,530 vs 2,289 More than 10% better PassMark (Single core) score
Slightly better PassMark score 11,194 vs 10,244 Around 10% better PassMark score
Significantly better overclocked clock speed (Water) 4.8 GHz vs 3.6 GHz Around 35% better overclocked clock speed (Water)

Benchmarks Real world tests of Xeon E3-1276 v3 vs Core i7 4790K

CompuBench 1.5 (Face detection)

Xeon E3-1276 v3
18.04 mPixels/s
Core i7 4790K
18.33 mPixels/s

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E3-1276 v3
5,310 MB/s
Core i7 4790K
5,140,000 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon E3-1276 v3  vs
Core i7 4790K 
Clock speed 3.6 GHz 4 GHz
Turbo clock speed 4 GHz 4.4 GHz
Cores Quad 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 84W 88W
Annual home energy cost 20.24 $/year 21.2 $/year
Annual commercial energy cost 73.58 $/year 77.09 $/year
Performance per watt 3.4 pt/W 11.42 pt/W
Typical power consumption 68.25W 71.5W

bus

Architecture DMI 2.0 DMI 2.0
Number of links 0 0
Transfer rate 5,000 MT/s 5,000 MT/s

details

Xeon E3-1276 v3  vs
Core i7 4790K 
Architecture x86-64 x86-64
Threads 8 8
L3 cache 8 MB 8 MB
L3 cache per core 2 MB/core 2 MB/core
Manufacture process 22 nm 22 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 3.6 GHz 4.63 GHz
Overclocked clock speed (Water) 3.6 GHz 4.8 GHz
Overclocked clock speed (Air) 3.6 GHz 4.63 GHz

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics P4600 Intel® HD Graphics 4600
Number of displays supported 3 3
GPU clock speed 350 MHz 350 MHz
Turbo clock speed 1,250 MHz 1,250 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3L-1600
DDR3-1333
DDR3
Channels Dual Channel Dual Channel
Supports ECC Yes No
Maximum bandwidth 25,600 MB/s 25,600 MB/s
Maximum memory size 32,768 MB 32,768 MB
Intel Xeon E3-1276 v3
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Intel Core i7 4790K
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