Intel Core i7-2600K vs Intel Core i7-5820K

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CPU comparison with benchmarks

-VS-

CPU lineage

Intel Core i7-2600K or Intel Core i7-2600K – which processor offers superior performance? In this comparison, we examine disparities and assess which of these two CPUs outperforms the other. We delve into technical specifications and benchmark outcomes.
The Intel Core i7-2600K features 4 processor cores and has the capability to manage 8 threads concurrently.
It was released in Q1/2011 and belongs to the 2 generation of the Intel Core i7 series.
To use the Intel Core i7-2600K, you'll need a motherboard with a LGA 1155 socket.
The Intel Core i7-5820K features 6 processor cores and has the capability to manage 12 threads concurrently.
It was released in Q3/2014 and belongs to the 5 generation of the Intel Core i7 Extreme Edition series.
To use the Intel Core i7-5820K, you'll need a motherboard with a LGA 2011-3 socket.
Desktop / Server Segment Desktop / Server
Intel Core i7-2600K Name Intel Core i7-5820K
Intel Core i7 Family Intel Core i7 Extreme Edition
2 Generation 5
Intel Core i 2000 Group Intel Core i 5000X
 
 

CPU Cores and Base Frequency

The Intel Core i7-2600K has 4 CPU cores and can calculate 8 threads in parallel.
The clock frequency of the Intel Core i7-2600K is 3.4 GHz
and turbo frequency for one core is 3.8 GHz.
The Intel Core i7-5820K has 6 CPU cores and can calculate 12 threads in parallel.
The clock frequency of the Intel Core i7-5820K is 3.3 GHz
and turbo frequency for one core is 3.6 GHz.
The number of CPU cores greatly affects the speed of the processor and is an important performance indicator.
3.8 GHz Turbo Frequency (1 core) 3.6 GHz
Yes Overclocking Yes
normal Core architecture normal
3.4 GHz Frequency 3.3 GHz
8 Threads 12
3.8 GHz Turbo Frequency (all cores) 3.4 GHz
Yes Hyperthreading Yes
4 CPU Cores 6
4x Cores 6x
 
 

Internal Graphics

The Intel Core i7-2600K has integrated graphics, called iGPU for short.
Specifically, the Intel Core i7-2600K uses the Intel HD Graphics 3000, which has 96 texture shaders
and 12 execution units.
The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
The Intel Core i7-5820K does not have integrated graphics.
0.85 GHz GPU frequency --
Q1/2011 Release date --
10.1 Direct X --
Intel HD Graphics 3000 GPU name
32 nm Technology --
-- Max. displays --
96 Shaders --
2.0 GB Max. GPU Memory 0 bytes
12 Execution units --
6 Generation --
1.35 GHz GPU (Turbo) --
 
 

Artificial Intelligence and Machine Learning

-- AI specifications --
-- AI hardware --
 
 

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.
Decode / Encode AVC --
Decode VC-1 --
No VP9 --
No h265 / HEVC (10 bit) --
Decode / Encode h264 --
No VP8 --
No h265 / HEVC (8 bit) --
No JPEG --
No AV1 --
 
 

Memory & PCIe

The processor supports a maximum memory capacity of 32.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 21.0 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
The processor supports a maximum memory capacity of 64.0 GB distributed across 4 memory channels. It offers a peak memory bandwidth of 68.2 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
2 Memory channels 4
32.0 GB Max. Memory 64.0 GB
pci PCIe pci
Yes AES-NI Yes
No ECC No
21.0 GB/s Bandwidth 68.2 GB/s
DDR3-1066, DDR3-1333 Memory type DDR4-2133
 
 

Thermal Management

The processor has a thermal design power (TDP) of 95 W watts.
TDP indicates the cooling solution needed to effectively manage the processor's heat. It generally provides an approximate indication of the actual power consumption of the CPU itself.
The processor has a thermal design power (TDP) of 140 W watts.
-- Tjunction max --
95 W TDP (PL1 / PBP) 140 W
 
 

Technical details

The Intel Core i7-2600K is manufactured using a 32 nm process.
A smaller manufacturing process indicates a more contemporary and energy-efficient CPU.
In total, this processor boasts a generous 8.0 MB cache.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The Intel Core i7-5820K is manufactured using a 22 nm process.
In total, this processor boasts a generous 15.0 MB cache.
Q1/2011 Release date Q3/2014
-- Part Number --
1.0 MB L2-Cache 0 bytes
VT-x, VT-x EPT Virtualization VT-x, VT-x EPT, VT-d
SSE4.1, SSE4.2, AVX ISA extensions SSE4.1, SSE4.2, AVX2
Monolithic Chip design Monolithic
Sandy Bridge S Architecture Haswell E
32 nm Technology 22 nm
LGA 1155 Socket LGA 2011-3
Windows 10, Linux Operating systems Windows 10, Linux
270 $ Release price 499 $
Technical data sheet Documents Technical data sheet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
8.0 MB L3-Cache 15.0 MB
 
 

Benchmarks

Geekbench 3, 64bit (Multi-Core)

Intel Core i7-5820K
6C 12T @ 3.3 GHz
23052
23052
Intel Core i7-2600K
4C 8T @ 3.4 GHz
12496
12496

Geekbench 6 (Multi-Core)

Intel Core i7-5820K
6C 12T @ 3.3 GHz
5763
5763
Intel Core i7-2600K
4C 8T @ 3.4 GHz
2457
2457

Geekbench 5, 64bit (Multi-Core)

Intel Core i7-5820K
6C 12T @ 3.3 GHz
5537
5537
Intel Core i7-2600K
4C 8T @ 3.4 GHz
3098
3098

V-Ray CPU-Render Benchmark

Intel Core i7-5820K
6C 12T @ 3.3 GHz
4584
4584
Intel Core i7-2600K
4C 8T @ 3.4 GHz
2156
2156

Geekbench 3, 64bit (Single-Core)

Intel Core i7-5820K
6C 12T @ 3.3 GHz
3740
3740
Intel Core i7-2600K
4C 8T @ 3.4 GHz
3193
3193

CPU-Z Benchmark 17 (Multi-Core)

Intel Core i7-5820K
6C 12T @ 3.3 GHz
2849
2849
Intel Core i7-2600K
4C 8T @ 3.4 GHz
1690
1690

Cinebench R20 (Multi-Core)

Intel Core i7-5820K
6C 12T @ 3.3 GHz
2301
2301
Intel Core i7-2600K
4C 8T @ 3.4 GHz
1865
1865

Geekbench 6 (Single-Core)

Intel Core i7-5820K
6C 12T @ 3.3 GHz
1086
1086
Intel Core i7-2600K
4C 8T @ 3.4 GHz
707
707

Cinebench R15 (Multi-Core)

Intel Core i7-5820K
6C 12T @ 3.3 GHz
1085
1085
Intel Core i7-2600K
4C 8T @ 3.4 GHz
612
612

Blender 2.81 (bmw27)

Intel Core i7-2600K
4C 8T @ 3.4 GHz
741.6
741.6
Intel Core i7-5820K
6C 12T @ 3.3 GHz
331.7
331.7

Cinebench R20 (Single-Core)

Intel Core i7-5820K
6C 12T @ 3.3 GHz
329
329
Intel Core i7-2600K
4C 8T @ 3.4 GHz
263
263

Cinebench R15 (Single-Core)

Intel Core i7-5820K
6C 12T @ 3.3 GHz
139
139
Intel Core i7-2600K
4C 8T @ 3.4 GHz
128
128