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Intel Core i7-3960X vs i7-4820K

Mini Review

Intel Core i7-3960X advantages

  • The Core i7-3960X incorporates more CPU cores than the Intel i7-4820K. Large number of cores helps this microprocessor to handle many simultaneous tasks or threads.

Intel Core i7-4820K advantages

  • Base frequency of the Intel Core i7-4820K processor is higher than the frequency of the i7-3960X.
  • Based on current official prices, the CPU is 68% cheaper.

i7-3960X vs i7-4820K specifications comparison

The graphs below compare the most important features of the i7-4820K and i7-3960X CPUs. These characteristics, as well as an IPC (instructions per cycle) number, determine how well a microprocessor performs. The "Number of cores / threads" graph displays the number of cores (darker area). Lighter area on the graph represents the number of extra threads, provided by Hyper-Threading technology. The "Operating frequency" chart uses dark color to represent base frequency, while 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. Although 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
 
 
12
 
8
 
 
Higher is better
Operating frequency
5
4
3
2
1
0
 
 
3.9GHz
 
3.9GHz
 
 
Higher is better
On-chip L2 + L3 cache
20
16
12
8
4
0
 
 
16.5MB
 
11MB
 
 
Higher is better
Thermal Design Power
200
160
120
80
40
0
 
 
130W
 
130W
 
 
Lower is better
Current official price
1100
880
660
440
220
0
 
 
$999
 
$323
 
 
Lower is better
 

  - Intel Core i7-3960X       - Intel Core i7-4820K

Detailed side by side comparison of Intel i7-3960X vs Intel i7-4820K specs can be found in the "Specifications" tab.


Pros and Cons summary

Core i7-3960X Core i7-4820K
General recommendations:
More cores for better multi-threading performance,
Supports more threads at once
  General recommendations:
Higher base frequency,
Considerably lower official price

Drawbacks:

Runs at lower base frequency,
Considerably higher official price
 

Drawbacks:

Not as many CPU cores,
Executes fewer threads

Similar processors

Core i7-3960X Core i7-4820K
 

Similar processors use the same socket and architecture as Intel i7-3960X and Intel Core i7-4820K.

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More comparisons

Compare Intel Core i7-3960X with...

Other Core i7 CPU:

Any CPU:


Compare Intel Core i7-4820K with...

Other Core i7 Extreme Edition 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
  Sandy Bridge
  Pentium 4 800FSB
  AMD 3.3GHz 8MB

Specifications

Please visit Intel Core i7-3960X and Intel Core i7-4820K pages for more detailed specifications of both microprocessors.

 Intel Core i7-3960XIntel Core i7-4820K
Market segmentDesktop
ManufacturerIntel
FamilyCore i7 Extreme EditionCore i7
Basic details
Model numberi7-3960Xi7-4820K
CPU part numberCM8061907184018
CM8061907184017
CM8063301292805
Box part numberBX80619I73960XBX80633I74820K
Introduction dateNovember 14, 2011September 10, 2013
Current official price$999 (as of May 2014)$323 (as of Jun 2014)
 
CPU features
Core nameSandy Bridge-EIvy Bridge-E
MicroarchitectureSandy BridgeIvy Bridge
Technology (micron)0.0320.022
Data width (bits)64
SocketSocket 2011
Frequency (MHz)33003700
Turbo Frequency (MHz)3900
Clock Multiplier3337
L1 cache192 KB (code) / 192 KB (data)128 KB (code) / 128 KB (data)
L2 cache (KB)15361024
L3 cache (KB)1536010240
Max temperature (°C)66.8
TDP (Watt)130
Core voltage (V)0.6 - 1.35 
Cores64
Threads128
Multiprocessing1
 
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+
Turbo Core / Turbo Boost+
Unlocked multiplier+
Virtualization+
Virus Protection / Execute Disable bit+
 
Integrated Graphics
GPU TypeNone
 
Integrated Memory Controller(s)
The number of controllers1
Memory channels4
Supported memoryDDR3-1066, DDR3-1333, DDR3-1600DDR3-1066, DDR3-1333, DDR3-1600, DDR3-1866
Maximum memory bandwidth (GB/s)51.259.7
Notes:

Rows with different specifications or features are highlighted.

For detailed specifications of "Intel Core i7-3960X" or "Intel Core i7-4820K" parts please click on the links in the table header.

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