Intel Core i7-10700K vs Intel Core i7-3820

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CPU comparison with benchmarks

-VS-

CPU lineage

Intel Core i7-10700K or Intel Core i7-10700K – 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 i7-10700K features 8 processor cores and has the capability to manage 16 threads concurrently.
It was released in Q2/2020 and belongs to the 10 generation of the Intel Core i7 series.
To use the Intel Core i7-10700K, you'll need a motherboard with a LGA 1200 socket.
The Intel Core i7-3820 features 4 processor cores and has the capability to manage 8 threads concurrently.
It was released in Q1/2012 and belongs to the 3 generation of the Intel Core i7 Extreme Edition series.
To use the Intel Core i7-3820, you'll need a motherboard with a LGA 2011 socket.
Desktop / Server Segment Desktop / Server
Intel Core i7-10700K Name Intel Core i7-3820
Intel Core i7 Family Intel Core i7 Extreme Edition
10 Generation 3
Intel Core i 10000 Group Intel Core i 3000X
 
 

CPU Cores and Base Frequency

The Intel Core i7-10700K has 8 CPU cores and can calculate 16 threads in parallel.
The clock frequency of the Intel Core i7-10700K is 3.8 GHz
and turbo frequency for one core is 5.1 GHz.
The number of CPU cores greatly affects the speed of the processor and is an important performance indicator.
The Intel Core i7-3820 has 4 CPU cores and can calculate 8 threads in parallel.
The clock frequency of the Intel Core i7-3820 is 3.6 GHz
and turbo frequency for one core is 3.8 GHz.
5.1 GHz Turbo Frequency (1 core) 3.8 GHz
Yes Overclocking Yes
normal Core architecture normal
3.8 GHz Frequency 3.6 GHz
16 Threads 8
4.9 GHz Turbo Frequency (all cores) None
Yes Hyperthreading Yes
8 CPU Cores 4
8x Cores 4x
 
 

Internal Graphics

The Intel Core i7-10700K has integrated graphics, called iGPU for short.
Specifically, the Intel Core i7-10700K uses the Intel UHD Graphics 630, 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 Core i7-3820 does not have integrated graphics.
0.35 GHz GPU frequency --
Q4/2017 Release date --
12 Direct X --
Intel UHD Graphics 630 GPU name
14 nm Technology --
-- Max. displays --
192 Shaders --
64.0 GB Max. GPU Memory 0 bytes
24 Execution units --
9.5 Generation --
1.2 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 --
Decode / Encode VP9 --
Decode / Encode h265 / HEVC (10 bit) --
Decode / Encode h264 --
Decode / Encode VP8 --
Decode / Encode h265 / HEVC (8 bit) --
Decode / Encode JPEG --
No AV1 --
 
 

Memory & PCIe

The processor supports a maximum memory capacity of 128.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 45.8 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 51.2 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
2 Memory channels 4
128.0 GB Max. Memory 64.0 GB
pci PCIe pci
Yes AES-NI Yes
No ECC No
45.8 GB/s Bandwidth 51.2 GB/s
DDR4-2933 Memory type DDR3-1066, DDR3-1333, DDR3-1600
 
 

Thermal Management

The processor has a thermal design power (TDP) of 125 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 130 W watts.
100 °C Tjunction max 105 °C
125 W TDP (PL1 / PBP) 130 W
95 W TDP down None
 
 

Technical details

The Intel Core i7-10700K 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 16.0 MB cache.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The Intel Core i7-3820 is manufactured using a 32 nm process.
In total, this processor boasts a generous 10.0 MB cache.
Q2/2020 Release date Q1/2012
-- Part Number --
0 bytes L2-Cache 0 bytes
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d (C2 Stepping)
SSE4.1, SSE4.2, AVX2 ISA extensions SSE4.1, SSE4.2, AVX
Monolithic Chip design Monolithic
Comet Lake S Architecture Sandy Bridge E
14 nm Technology 32 nm
LGA 1200 Socket LGA 2011
Windows 10, Linux, Windows 11 Operating systems Windows 10, Linux
374 $ Release price 305 $
Technical data sheet Documents Technical data sheet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
16.0 MB L3-Cache 10.0 MB
 
 

Benchmarks

Geekbench 5, 64bit (Multi-Core)

Intel Core i7-10700K
8C 16T @ 3.8 GHz
9268
9268
Intel Core i7-3820
4C 8T @ 3.6 GHz
3293
3293

Geekbench 6 (Multi-Core)

Intel Core i7-10700K
8C 16T @ 3.8 GHz
8629
8629
Intel Core i7-3820
4C 8T @ 3.6 GHz
2596
2596

CPU-Z Benchmark 17 (Multi-Core)

Intel Core i7-10700K
8C 16T @ 3.8 GHz
5614
5614
Intel Core i7-3820
4C 8T @ 3.6 GHz
1771
1771

Geekbench 6 (Single-Core)

Intel Core i7-10700K
8C 16T @ 3.8 GHz
1636
1636
Intel Core i7-3820
4C 8T @ 3.6 GHz
729
729