Intel Core i7-6700K vs Intel Celeron 420

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CPU comparison with benchmarks

-VS-

CPU lineage

Intel Core i7-6700K or Intel Core i7-6700K – 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 i7-6700K features 4 processor cores and has the capability to manage 8 threads concurrently.
It was released in Q3/2015 and belongs to the 6 generation of the Intel Core i7 series.
To use the Intel Core i7-6700K, you'll need a motherboard with a LGA 1151 socket.
The Intel Celeron 420 features 1 processor cores and has the capability to manage 1 threads concurrently.
It was released in Q2/2007 and belongs to the 1 generation of the Intel Celeron series.
To use the Intel Celeron 420, you'll need a motherboard with a LGA 775 socket.
Intel Core i 6000 Group Intel Celeron 400
6 Generation 1
Intel Core i7-6700K Name Intel Celeron 420
Desktop / Server Segment Desktop / Server
Intel Core i7 Family Intel Celeron
 
 

CPU Cores and Base Frequency

The Intel Core i7-6700K has 4 CPU cores and can calculate 8 threads in parallel.
The clock frequency of the Intel Core i7-6700K is 4.0 GHz
and turbo frequency for one core is 4.2 GHz.
The Intel Celeron 420 has 1 CPU cores and can calculate 1 threads in parallel.
The clock frequency of the Intel Celeron 420 is 1.6 GHz
The processor has one core only.
4.0 GHz Turbo Frequency (all cores) None
4.2 GHz Turbo Frequency (1 core) None
normal Core architecture normal
4.0 GHz Frequency 1.6 GHz
4 CPU Cores 1
Yes Overclocking No
Yes Hyperthreading No
4x Cores 1x Core
8 Threads 1
 
 

Internal Graphics

The Intel Core i7-6700K has integrated graphics, called iGPU for short.
Specifically, the Intel Core i7-6700K uses the Intel HD Graphics 530, which has 192 texture shaders
and 24 execution units.
The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
The Intel Celeron 420 does not have integrated graphics.
1.15 GHz GPU (Turbo) --
14 nm Technology --
12 Direct X --
32.0 GB Max. GPU Memory 0 bytes
24 Execution units --
Q3/2015 Release date --
Intel HD Graphics 530 GPU name
192 Shaders --
0.35 GHz GPU frequency --
9 Generation --
-- Max. displays --
 
 

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 h265 / HEVC (8 bit) --
Decode VP9 --
Decode / Encode VP8 --
Decode VC-1 --
Decode / Encode JPEG --
Decode / Encode h264 --
Decode h265 / HEVC (10 bit) --
Decode / Encode AVC --
No AV1 --
 
 

Memory & PCIe

The processor supports a maximum memory capacity of 64.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 34.1 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
DDR4-2133, DDR3-1866 Memory type DDR3-1066, DDR2-800
34.1 GB/s Bandwidth --
Yes AES-NI No
No ECC No
pci PCIe pci
64.0 GB Max. Memory 16.0 GB
2 Memory channels 2
 
 

Thermal Management

The processor has a thermal design power (TDP) of 91 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 35 W watts.
91 W TDP (PL1 / PBP) 35 W
-- Tjunction max --
 
 

Technical details

The Intel Core i7-6700K is manufactured using a 14 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 Celeron 420 is manufactured using a 65 nm process.
VT-x, VT-x EPT, VT-d Virtualization None
14 nm Technology 65 nm
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2, AVX2 ISA extensions SSE3, MMX, SSE, SSE2
-- Part Number --
Monolithic Chip design Monolithic
Q3/2015 Release date Q2/2007
420 $ Release price --
0 bytes L2-Cache 512.0 KB
Technical data sheet Documents Technical data sheet
8.0 MB L3-Cache 0 bytes
LGA 1151 Socket LGA 775
Windows 10, Linux Operating systems Windows 10, Linux
Skylake S Architecture Conroe (Core)
 
 

Benchmarks

Geekbench 5, 64bit (Multi-Core)

Intel Core i7-6700K
4C 8T @ 4.0 GHz
4459
4459
Intel Celeron 420
1C 1T @ 1.6 GHz
160
160

Geekbench 5, 64bit (Single-Core)

Intel Core i7-6700K
4C 8T @ 4.0 GHz
1151
1151
Intel Celeron 420
1C 1T @ 1.6 GHz
160
160