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Intel Core i7-4820K vs Xeon E7-4820

Mini Review

Intel Core i7-4820K advantages

  • The processor offers higher operating frequency than the Intel Xeon E7-4820 microprocessor.
  • AVX instructions are enabled on this processor. Although these extensions are not widely used by applications yet, their support should improve in future apps.
  • The clock multiplier on the Intel i7-4820K CPU is not locked. The processor can be freely overclocked on most motherboards if greater performance is desired. Be warned that overclocking voids warranty of the CPU.
  • The Intel i7-4820K microprocessor is priced about 78% cheaper.

Intel Xeon E7-4820 advantages

  • The E7-4820 packs more processing cores than the Core i7-4820K microprocessor. Large number of cores helps this processor to tackle multiple processes or heavily multi-threaded programs.
  • The microprocessor is 19% more energy efficient.

i7-4820K vs E7-4820 specifications comparison

The charts below compare the most important Xeon E7-4820 and Intel Core i7-4820K characteristics. These features, as well as an IPC (instructions per cycle) number, determine how well a CPU performs. The "Number of cores / threads" graph displays the number of cores (darker area). Lighter area on the graph corresponds to the number of extra threads, provided by Hyper-Threading technology. The "Operating frequency" chart uses dark color for base frequency, whereas lighter area is for additional frequency, provided by Turbo feature. Darker area on the "On-chip cache" graph is for the On-chip L2 cache. Lighter area is for the L3 cache cache. While the L3 cache cache is usually larger than the On-chip L2 cache, it is always slower.

The number of cores / threads
20
16
12
8
4
0
 
 
8
 
16
 
 
Higher is better
Operating frequency
5
4
3
2
1
0
 
 
3.9GHz
 
2.27GHz
 
 
Higher is better
On-chip L2 + L3 cache
30
24
18
12
6
0
 
 
11MB
 
20MB
 
 
Higher is better
Thermal Design Power
200
160
120
80
40
0
 
 
130W
 
105W
 
 
Lower is better
Current official price
2000
1600
1200
800
400
0
 
 
$323
 
$1446
 
 
Lower is better
 

  - Intel Core i7-4820K       - Intel Xeon E7-4820

Detailed side by side comparison of i7-4820K vs E7-4820 specs can be found in the "Specifications" tab.


Pros and Cons summary

Core i7-4820K Xeon E7-4820
General recommendations:
Clocked higher,
Features AVX instructions,
Can be easily overclocked,
Significantly lower official price
  General recommendations:
More cores improve multi-threading performance,
Can execute more threads at once,
Lower power consumption

Drawbacks:

Not as many CPU cores,
Executes fewer threads,
Needs more power
 

Drawbacks:

Clocked lower,
Does not support some instructions,
Much higher official price

Similar processors

Core i7-4820K Xeon E7-4820
 

Similar microprocessors use the same socket and architecture as i7-4820K and Xeon E7-4820, but their performance and other characteristics are slightly different.

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More comparisons

Compare Intel Core i7-4820K with...

Other Xeon CPU:

Any CPU:


Compare Intel Xeon E7-4820 with...

Other Core i7 CPU:

Any CPU:


Note: To see differences with any CPU, type in any combination of the following into the "Any CPU" field: manufacturer name, full or partial family name, model number, part number, core name, socket name, operating frequency, bus speed (must have FSB suffix), and the last level cache. Here are some valid searches:

  i5-3570K
  Intel Celeron 2 GHz
  Ivy Bridge
  Pentium 4 800FSB
  AMD 3.3GHz 8MB

Specifications

Please visit Intel Core i7-4820K and Intel Xeon E7-4820 pages for more detailed specifications of both microprocessors.

 Intel Core i7-4820KIntel Xeon E7-4820
Market segmentDesktopServer
ManufacturerIntel
FamilyCore i7Xeon
Basic details
Model numberi7-4820KE7-4820
CPU part numberCM8063301292805AT80615005772AC
Box part numberBX80633I74820K 
Introduction dateSeptember 10, 2013April 3, 2011
Current official price$323 (as of Jun 2014)$1446 (as of Jun 2014)
 
CPU features
Core nameIvy Bridge-EWestmere-EX
Platform name Boxboro-EX
MicroarchitectureIvy BridgeNehalem
Technology (micron)0.0220.032
Data width (bits)64
SocketSocket 2011Socket 1567
Frequency (MHz)37002000
Turbo Frequency (MHz)39002267 / - / - / 2133
Bus speed (MHz) 2933 (HT/QPI)
Clock Multiplier3715
L1 cache128 KB (code) / 128 KB (data) 
L2 cache (KB)10242048
L3 cache (KB)1024018432
Max temperature (°C)66.864
TDP (Watt)130105
Cores48
Threads816
Multiprocessing14
 
Instruction set extensions
AES / Advanced Encryption Standard+
AMD64 / EM64T 64-bit technology+
AVX / Advanced Vector Extensions+-
MMX+
SSE+
SSE2+
SSE3+
SSE4.1+
SSE4.2+
SSSE3 / Supplemental SSE3+
 
Supported technologies
Hyper-Threading+
PowerNow! / Enhanced SpeedStep+
Trusted Execution-+
Turbo Core / Turbo Boost+
Unlocked multiplier+-
Virtualization+
Virus Protection / Execute Disable bit+
 
Integrated Graphics
GPU TypeNone
Notes:

Rows with different specifications or features are highlighted.

For detailed specifications of "Intel Core i7-4820K" or "Intel Xeon E7-4820" parts please click on the links in the table header.

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