Celeron G3900T vs i7-6700K

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Aggregate performance score

Core i7-6700K
2015
4 cores / 8 threads, 91 Watt
5.63
+343%
Celeron G3900T
2015
2 cores / 2 threads, 35 Watt
1.27

Core i7-6700K outperforms Celeron G3900T by a whopping 343% based on our aggregate benchmark results.

Primary details

Comparing Core i7-6700K and Celeron G3900T processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking11492297
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation1.19no data
Market segmentDesktop processorLaptop
SeriesIntel Core i7 (Desktop)Intel Celeron
Power efficiency5.863.43
Architecture codenameSkylake (2015−2016)Skylake (2015−2016)
Release date5 August 2015 (9 years ago)19 October 2015 (9 years ago)
Launch price (MSRP)$339no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core i7-6700K and Celeron G3900T 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 speed4 GHz2.6 GHz
Boost clock speed4.2 GHz2.6 GHz
Bus typeDMI 3.0DMI 3.0
Bus rate4 × 8 GT/s4 × 8 GT/s
Multiplier4026
L1 cache64 KB (per core)128 KB
L2 cache256 KB (per core)512 KB
L3 cache8 MB (shared)2 MB
Chip lithography14 nm14 nm
Die size122 mm298.57 mm2
Maximum case temperature (TCase)64 °Cno data
Number of transistors1750 Millionno data
64 bit support++
Windows 11 compatibility--
Unlocked multiplier+-

Compatibility

Information on Core i7-6700K and Celeron G3900T 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 configuration1 (Uniprocessor)1 (Uniprocessor)
SocketFCLGA1151FCLGA1151
Power consumption (TDP)91 Watt35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-6700K and Celeron G3900T. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2Intel® SSE4.1, Intel® SSE4.2
AES-NI++
AVX++
vPro+no data
Enhanced SpeedStep (EIST)++
Turbo Boost Technology2.0-
Hyper-Threading Technology+-
TSX+-
Idle States++
Thermal Monitoring++

Security technologies

Core i7-6700K and Celeron G3900T technologies aimed at improving security, for example, by protecting against hacks.

TXT--
EDB++
Secure Key++
MPX+-
Identity Protection+-
SGXYes with Intel® MEYes with Intel® ME
OS Guard+-

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-6700K and Celeron G3900T are enumerated here.

AMD-V+-
VT-d++
VT-x++
EPT++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-6700K and Celeron G3900T. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3, DDR4DDR4-1866/2133, DDR3L-1333/1600
Maximum memory size64 GB64 GB
Max memory channels22
Maximum memory bandwidth34.134 GB/s34.134 GB/s
ECC memory support-+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card
Compare
Intel HD Graphics 530Intel HD Graphics 510
Max video memory64 GB64 GB
Quick Sync Video++
Clear Video++
Clear Video HD++
Graphics max frequency1.15 GHz950 MHz
InTru 3D++

Graphics interfaces

Available interfaces and connections of Core i7-6700K and Celeron G3900T integrated GPUs.

Number of displays supported33
eDP++
DisplayPort++
HDMI++
DVI++

Graphics image quality

Maximum display resolutions supported by Core i7-6700K and Celeron G3900T integrated GPUs, including resolutions over different interfaces.

4K resolution support++
Max resolution over HDMI 1.44096x2304@24Hz4096x2304@24Hz
Max resolution over eDP4096x2304@60Hz4096x2304@60Hz
Max resolution over DisplayPort4096x2304@60Hz4096x2304@60Hz
Max resolution over VGAN/AN/A

Graphics API support

APIs supported by Core i7-6700K and Celeron G3900T integrated GPUs, sometimes API versions are included.

DirectX1212
OpenGL4.54.4

Peripherals

Specifications and connection of peripherals supported by Core i7-6700K and Celeron G3900T.

PCIe version3.03.0
PCI Express lanes1616

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.

i7-6700K 5.63
+343%
Celeron G3900T 1.27

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.

i7-6700K 8936
+342%
Celeron G3900T 2020

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.

i7-6700K 1506
+172%
Celeron G3900T 554

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.

i7-6700K 4941
+401%
Celeron G3900T 986

Gaming performance

Pros & cons summary


Performance score 5.63 1.27
Integrated graphics card 2.60 1.61
Recency 5 August 2015 19 October 2015
Physical cores 4 2
Threads 8 2
Power consumption (TDP) 91 Watt 35 Watt

i7-6700K has a 343.3% higher aggregate performance score, 61.5% faster integrated GPU, and 100% more physical cores and 300% more threads.

Celeron G3900T, on the other hand, has an age advantage of 2 months, and 160% lower power consumption.

The Core i7-6700K is our recommended choice as it beats the Celeron G3900T in performance tests.

Note that Core i7-6700K is a desktop processor while Celeron G3900T is a notebook one.


Should you still have questions on choice between Core i7-6700K and Celeron G3900T, ask them in Comments section, and we shall answer.

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Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.


Intel Core i7-6700K
Core i7-6700K
Intel Celeron G3900T
Celeron G3900T

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Community ratings

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Questions & comments

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