AMD Phenom II X4 840T vs Intel Core i7-4790K

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CPU comparison with benchmarks

-VS-

CPU lineage

AMD Phenom II X4 840T or AMD Phenom II X4 840T – 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 Phenom II X4 840T features 4 processor cores and has the capability to manage 4 threads concurrently.
It was released in Q3/2010 and belongs to the 4 generation of the AMD Phenom II series.
To use the AMD Phenom II X4 840T, you'll need a motherboard with a AM3 socket.
The Intel Core i7-4790K features 4 processor cores and has the capability to manage 8 threads concurrently.
It was released in Q2/2014 and belongs to the 4 generation of the Intel Core i7 series.
To use the Intel Core i7-4790K, you'll need a motherboard with a LGA 1150 socket.
Desktop / Server Segment Desktop / Server
AMD Phenom II X4 840T Name Intel Core i7-4790K
AMD Phenom II Family Intel Core i7
4 Generation 4
AMD Phenom II - 800/900 Group Intel Core i 4000
 
 

CPU Cores and Base Frequency

The AMD Phenom II X4 840T has 4 CPU cores and can calculate 4 threads in parallel.
The clock frequency of the AMD Phenom II X4 840T is 2.9 GHz
and turbo frequency for one core is 3.2 GHz.
The Intel Core i7-4790K has 4 CPU cores and can calculate 8 threads in parallel.
The clock frequency of the Intel Core i7-4790K is 4.0 GHz
and turbo frequency for one core is 4.4 GHz.
3.2 GHz Turbo Frequency (1 core) 4.4 GHz
Yes Overclocking Yes
normal Core architecture normal
2.9 GHz Frequency 4.0 GHz
4 Threads 8
3.2 GHz Turbo Frequency (all cores) 4.2 GHz
No Hyperthreading Yes
4 CPU Cores 4
4x Cores 4x
 
 

Internal Graphics

The AMD Phenom II X4 840T does not have integrated graphics.
The Intel Core i7-4790K has integrated graphics, called iGPU for short.
Specifically, the Intel Core i7-4790K uses the Intel HD Graphics 4600, which has 160 texture shaders
and 20 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 Q2/2013
-- Direct X 11.1
GPU name Intel HD Graphics 4600
-- Technology 22 nm
-- Max. displays --
-- Shaders 160
0 bytes Max. GPU Memory 2.0 GB
-- Execution units 20
-- Generation 7.5
-- GPU (Turbo) 1.25 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 No
-- h265 / HEVC (10 bit) No
-- h264 Decode / Encode
-- VP8 No
-- h265 / HEVC (8 bit) No
-- JPEG Decode
-- AV1 No
 
 

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 25.6 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
2 Memory channels 2
0 bytes Max. Memory 32.0 GB
pci PCIe pci
No AES-NI Yes
No ECC No
-- Bandwidth 25.6 GB/s
DDR3-1333, DDR2-1066 Memory type
 
 

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 88 W watts.
-- Tjunction max --
95 W TDP (PL1 / PBP) 88 W
 
 

Technical details

The AMD Phenom II X4 840T is manufactured using a 45 nm process.
A smaller manufacturing process indicates a more contemporary and energy-efficient CPU.
In total, this processor boasts a generous 6.0 MB cache.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The Intel Core i7-4790K is manufactured using a 22 nm process.
In total, this processor boasts a generous 8.0 MB cache.
Q3/2010 Release date Q2/2014
-- Part Number --
0 bytes L2-Cache 0 bytes
AMD-V Virtualization VT-x, VT-x EPT, VT-d
SSE3, SSE4a ISA extensions SSE4.1, SSE4.2, AVX2
-- Chip design Monolithic
Deneb (K10) Architecture Devils Canyon S
45 nm Technology 22 nm
AM3 Socket LGA 1150
Windows 10, Linux Operating systems Windows 10, Linux
-- Release price 310 $
Technical data sheet Documents Technical data sheet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
6.0 MB L3-Cache 8.0 MB
 
 

Benchmarks

Geekbench 3, 64bit (Multi-Core)

Intel Core i7-4790K
4C 8T @ 4.0 GHz
16686
16686
AMD Phenom II X4 840T
4C 4T @ 2.9 GHz
5984
5984

Geekbench 5, 64bit (Multi-Core)

Intel Core i7-4790K
4C 8T @ 4.0 GHz
4001
4001
AMD Phenom II X4 840T
4C 4T @ 2.9 GHz
1578
1578