AMD Athlon II X4 651 vs Intel Core i7-8700K

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CPU comparison with benchmarks

-VS-

CPU lineage

AMD Athlon II X4 651 or AMD Athlon II X4 651 – 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 AMD Athlon II X4 651 features 4 processor cores and has the capability to manage 4 threads concurrently.
It was released in Q4/2011 and belongs to the 2 generation of the AMD Athlon II series.
To use the AMD Athlon II X4 651, you'll need a motherboard with a FM1 socket.
The Intel Core i7-8700K features 6 processor cores and has the capability to manage 12 threads concurrently.
It was released in Q4/2017 and belongs to the 8 generation of the Intel Core i7 series.
To use the Intel Core i7-8700K, you'll need a motherboard with a LGA 1151-2 socket.
Desktop / Server Segment Desktop / Server
AMD Athlon II X4 651 Name Intel Core i7-8700K
AMD Athlon II Family Intel Core i7
2 Generation 8
AMD Athlon II X4 (Llano) Group Intel Core i 8000
 
 

CPU Cores and Base Frequency

The AMD Athlon II X4 651 has 4 CPU cores and can calculate 4 threads in parallel.
The clock frequency of the AMD Athlon II X4 651 is 3.0 GHz
The Intel Core i7-8700K has 6 CPU cores and can calculate 12 threads in parallel.
The clock frequency of the Intel Core i7-8700K is 3.7 GHz
and turbo frequency for one core is 4.7 GHz.
The number of CPU cores greatly affects the speed of the processor and is an important performance indicator.
4 Threads 12
None None 4.3 GHz
No Hyperthreading Yes
4x Cores 6x
No Overclocking Yes
normal Core architecture normal
3.0 GHz Frequency 3.7 GHz
None None 4.7 GHz
4 CPU Cores 6
 
 

Internal Graphics

The AMD Athlon II X4 651 does not have integrated graphics.
The Intel Core i7-8700K has integrated graphics, called iGPU for short.
Specifically, the Intel Core i7-8700K 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.
-- GPU frequency 0.35 GHz
-- Release date Q4/2017
-- Direct X 12
GPU name Intel UHD Graphics 630
-- Technology 14 nm
-- Max. displays --
-- Shaders 192
0 bytes Max. GPU Memory 64.0 GB
-- Execution units 24
-- Generation 9.5
-- GPU (Turbo) 1.2 GHz
 
 

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

Memory & PCIe

The processor supports a maximum memory capacity of 16.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 21.3 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 128.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 42.7 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
2 Memory channels 2
16.0 GB Max. Memory 128.0 GB
pci PCIe pci
No AES-NI Yes
No ECC No
21.3 GB/s Bandwidth 42.7 GB/s
DDR3-1333 Memory type DDR4-2666
 
 

Thermal Management

The processor has a thermal design power (TDP) of 100 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 95 W watts.
-- Tjunction max --
100 W TDP (PL1 / PBP) 95 W
 
 

Technical details

The AMD Athlon II X4 651 is manufactured using a 32 nm process.
A smaller manufacturing process indicates a more contemporary and energy-efficient CPU.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The Intel Core i7-8700K is manufactured using a 14 nm process.
In total, this processor boasts a generous 12.0 MB cache.
Q4/2011 Release date Q4/2017
-- Part Number --
4.0 MB L2-Cache 0 bytes
AMD-V Virtualization VT-x, VT-x EPT, VT-d
SSE3, SSE4a, MMX, 3DNow! ISA extensions SSE4.1, SSE4.2, AVX2
-- Chip design Monolithic
Llano Architecture Coffee Lake S
32 nm Technology 14 nm
FM1 Socket LGA 1151-2
Windows 10, Linux Operating systems Windows 10, Linux, Windows 11
-- Release price 370 $
Technical data sheet Documents Technical data sheet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
0 bytes L3-Cache 12.0 MB
 
 

Benchmarks

Geekbench 5, 64bit (Multi-Core)

Intel Core i7-8700K
6C 12T @ 3.7 GHz
6693
6693
AMD Athlon II X4 651
4C 4T @ 3.0 GHz
1467
1467