A6-6400K vs i7-4790S

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Aggregate performance score

Core i7-4790S
2014
4 cores / 8 threads, 65 Watt
4.42
+365%
A6-6400K
2013
2 cores / 2 threads, 65 Watt
0.95

Core i7-4790S outperforms A6-6400K by a whopping 365% based on our aggregate benchmark results.

Primary details

Comparing Core i7-4790S and A6-6400K processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking13412519
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.82no data
Market segmentDesktop processorDesktop processor
SeriesCore i7 (Desktop)AMD A-Series (Desktop)
Power efficiency6.441.38
Architecture codenameHaswell (2013−2015)Richland (2013−2014)
Release date1 May 2014 (10 years ago)1 June 2013 (11 years ago)
Launch price (MSRP)$303no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core i7-4790S and A6-6400K basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores4 (Quad-Core)2 (Dual-core)
Threads82
Base clock speed3.2 GHz3.9 GHz
Boost clock speed4 GHz4.1 GHz
Bus rate5 GT/sno data
L1 cache64K (per core)96 KB
L2 cache256K (per core)1024 KB
L3 cache8 MB (shared)0 KB
Chip lithography22 nm32 nm
Die size177 mm2246 mm2
Maximum core temperatureno data70 °C
Maximum case temperature (TCase)71 °C70 °C
Number of transistors1,400 million1,178 million
64 bit support++
Windows 11 compatibility--
Unlocked multiplier-+

Compatibility

Information on Core i7-4790S and A6-6400K compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration11
SocketFCLGA1150FM2
Power consumption (TDP)65 Watt65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-4790S and A6-6400K. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2MMX, SSE1-4a, AES, ABM, AVX, BMI1, AMD64, VT, EVP, Turbo Core 3.0
AES-NI++
FMA-FMA4
AVX++
PowerNow-+
PowerGating-+
VirusProtect-+
vPro+no data
Enhanced SpeedStep (EIST)+no data
My WiFi+no data
Turbo Boost Technology2.0no data
Hyper-Threading Technology+no data
Idle States+no data
Thermal Monitoring+-
SIPP+-
FDI+no data

Security technologies

Core i7-4790S and A6-6400K technologies aimed at improving security, for example, by protecting against hacks.

TXT+no data
EDB+no data
Secure Key+no data
Identity Protection+-
OS Guard+no data
Anti-Theft+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-4790S and A6-6400K are enumerated here.

AMD-V++
VT-d+no data
VT-x+no data
EPT+no data
IOMMU 2.0-+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-4790S and A6-6400K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR3-1866
Maximum memory size32 GBno data
Max memory channels22
Maximum memory bandwidth25.6 GB/sno data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card
Compare
Intel HD Graphics 4600AMD Radeon HD 8470D
จำนวนพาธไลน์no data192
Max video memory2 GBno data
Quick Sync Video+-
Clear Video HD+no data
Enduro-+
Switchable graphics-+
UVD-+
VCE-+
Graphics max frequency1.2 GHzno data
InTru 3D+no data

Graphics interfaces

Available interfaces and connections of Core i7-4790S and A6-6400K integrated GPUs.

Number of displays supported3no data
eDP+no data
DisplayPort++
HDMI++
DVI+no data
VGA+no data

Graphics image quality

Maximum display resolutions supported by Core i7-4790S and A6-6400K integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.44096x2304@24Hzno data
Max resolution over eDP3840x2160@60Hzno data
Max resolution over DisplayPort3840x2160@60Hzno data
Max resolution over VGA1920x1200@60Hzno data

Graphics API support

APIs supported by Core i7-4790S and A6-6400K integrated GPUs, sometimes API versions are included.

DirectX11.2/12DirectX® 11
OpenGL4.3no data

Peripherals

Specifications and connection of peripherals supported by Core i7-4790S and A6-6400K.

PCIe versionUp to 3.02.0
PCI Express lanes16no data

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.


Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

i7-4790S 4.42
+365%
A6-6400K 0.95

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

i7-4790S 7016
+367%
A6-6400K 1502

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

i7-4790S 1219
+197%
A6-6400K 410

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

i7-4790S 3797
+559%
A6-6400K 576

Cinebench 10 32-bit single-core

Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.

i7-4790S 5566
+81.5%
A6-6400K 3068

Cinebench 10 32-bit multi-core

Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.

i7-4790S 21072
+315%
A6-6400K 5079

Cinebench 11.5 64-bit multi-core

Cinebench Release 11.5 Multi Core is a variant of Cinebench R11.5 which uses all the processor threads. A maximum of 64 threads is supported in this version.

i7-4790S 8
+369%
A6-6400K 2

Cinebench 15 64-bit multi-core

Cinebench Release 15 Multi Core is a variant of Cinebench R15 which uses all the processor threads.

i7-4790S 714
+379%
A6-6400K 149

Cinebench 15 64-bit single-core

Cinebench R15 (standing for Release 15) is a benchmark made by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version (sometimes called Single-Thread) only uses a single processor thread to render a room full of reflective spheres and light sources.

i7-4790S 150
+70.5%
A6-6400K 88

Cinebench 11.5 64-bit single-core

Cinebench R11.5 is an old benchmark by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version loads a single thread with ray tracing to render a glossy room full of crystal spheres and light sources.

i7-4790S 1.72
+107%
A6-6400K 0.83

Gaming performance

Pros & cons summary


Performance score 4.42 0.95
Integrated graphics card 1.84 0.97
Recency 1 May 2014 1 June 2013
Physical cores 4 2
Threads 8 2
Chip lithography 22 nm 32 nm

i7-4790S has a 365.3% higher aggregate performance score, 89.7% faster integrated GPU, an age advantage of 11 months, 100% more physical cores and 300% more threads, and a 45.5% more advanced lithography process.

The Core i7-4790S is our recommended choice as it beats the A6-6400K in performance tests.


Should you still have questions on choice between Core i7-4790S and A6-6400K, ask them in Comments section, and we shall answer.

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Intel Core i7-4790S
Core i7-4790S
AMD A6-6400K
A6-6400K

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