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.
Intel Xeon E7-4820 advantages
- More CPU cores on the Intel E7-4820 help to handle multiple programs or heavily multi-threaded applications.
- Power consumption of the processor is lower.
i7-4820K vs E7-4820 specifications comparison
The charts below compare the most important Xeon E7-4820 and Core i7-4820K characteristics. These features, together with an IPC (instructions per cycle) number, determine how well a microprocessor performs. The "Number of cores / threads" graph shows the number of cores (darker area). Lighter area on the graph represents the number of extra threads, offered 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
Higher is better
Higher is better
On-chip L2 + L3 cache
Higher is better
Thermal Design Power
Lower is better
- Intel Core i7-4820K - Intel Xeon E7-4820
Detailed side by side comparison of Core i7-4820K vs Intel E7-4820 specs can be found in the "Specifications" tab.
Pros and Cons summary
|Core i7-4820K|| ||Xeon E7-4820|
Features AVX instructions,
Can be easily overclocked
More cores improve multi-threading performance,
Can execute more threads at once,
Needs less power
Not as many CPU cores,
Executes fewer threads,
Requires somewhat more power
Lacks some instructions
Please visit Intel Core i7-4820K and Intel Xeon E7-4820 pages for more complete specifications of both microprocessors.
| ||Intel Core i7-4820K||Intel Xeon E7-4820|
|CPU part number||CM8063301292805||AT80615005772AC|
|Box part number||BX80633I74820K|| |
|Introduction date||September 10, 2013||April 3, 2011|
|Current official price|| ||$1446 (as of Jun 2013)|
|Core name||Ivy Bridge-E||Westmere-EX|
|Platform name|| ||Boxboro-EX|
|Data width (bits)||64|
|Socket||Socket 2011||Socket 1567|
|Turbo Frequency (MHz)||3900||2267 / - / - / 2133|
|Bus speed (MHz)|| ||2933 (HT/QPI)|
|L1 cache||128 KB (code) / 128 KB (data)|| |
|L2 cache (KB)||1024||2048|
|L3 cache (KB)||10240||18432|
|Max temperature (°C)||66.8||64|
|Instruction set extensions|
|AES / Advanced Encryption Standard||+|
|AMD64 / EM64T 64-bit technology||+|
|AVX / Advanced Vector Extensions||+||-|
|SSSE3 / Supplemental SSE3||+|
|PowerNow! / Enhanced SpeedStep||+|
|Turbo Core / Turbo Boost||+|
|Virus Protection / Execute Disable bit||+|
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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