Pentium G3420 vs i7-5820K

#ad 
Buy on Amazon
VS

Aggregate performance score

Core i7-5820K
2014
6 cores / 12 threads, 140 Watt
6.20
+404%
Pentium G3420
2013
2 cores / 2 threads, 53 Watt
1.23

Core i7-5820K outperforms Pentium G3420 by a whopping 404% based on our aggregate benchmark results.

Primary details

Comparing Core i7-5820K and Pentium G3420 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking10882328
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation1.190.07
Market segmentDesktop processorDesktop processor
Power efficiency4.192.15
Architecture codenameHaswell-E (2014)Haswell (2013−2015)
Release date1 September 2014 (10 years ago)1 September 2013 (11 years ago)
Launch price (MSRP)$410$252

Cost-effectiveness evaluation

Performance per price, higher is better.

i7-5820K has 1600% better value for money than Pentium G3420.

Detailed specifications

Core i7-5820K and Pentium G3420 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 cores6 (Hexa-Core)2 (Dual-core)
Threads122
Base clock speed3.3 GHz3.2 GHz
Boost clock speed3.6 GHz3.2 GHz
Bus rate0 GT/s5 GT/s
L1 cache64 KB (per core)64 KB (per core)
L2 cache256 KB (per core)256 KB (per core)
L3 cache15 MB (shared)3 MB (shared)
Chip lithography22 nm22 nm
Die size356 mm2177 mm2
Maximum core temperature67 °Cno data
Maximum case temperature (TCase)no data72 °C
Number of transistors2,600 million1,400 million
64 bit support++
Windows 11 compatibility--
Unlocked multiplier+-

Compatibility

Information on Core i7-5820K and Pentium G3420 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
SocketFCLGA2011FCLGA1150
Power consumption (TDP)140 Watt53 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-5820K and Pentium G3420. You'll probably need this information if you require some particular technology.

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

Security technologies

Core i7-5820K and Pentium G3420 technologies aimed at improving security, for example, by protecting against hacks.

TXT+-
EDB++
Identity Protection+-

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-5820K and Pentium G3420 are enumerated here.

VT-d+-
VT-x++
EPT++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-5820K and Pentium G3420. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4DDR3
Maximum memory size64 GB32 GB
Max memory channels42
Maximum memory bandwidth68 GB/s25.6 GB/s
ECC memory support-+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataIntel HD Graphics for 4th Generation Intel Processors
Max video memoryno data1.7 GB
Quick Sync Video-+
Graphics max frequencyno data1.15 GHz

Graphics interfaces

Available interfaces and connections of Core i7-5820K and Pentium G3420 integrated GPUs.

Number of displays supportedno data3
eDPno data+
DisplayPort-+
HDMI-+
DVIno data+
VGAno data+

Graphics image quality

Maximum display resolutions supported by Core i7-5820K and Pentium G3420 integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4no data1920x1080@60Hz
Max resolution over eDPno data2560x1600@60Hz
Max resolution over DisplayPortno data2560x1600@60Hz
Max resolution over VGAno data1920x1200@60Hz

Graphics API support

APIs supported by Core i7-5820K and Pentium G3420 integrated GPUs, sometimes API versions are included.

DirectXno data11.1/12
OpenGLno data4.3

Peripherals

Specifications and connection of peripherals supported by Core i7-5820K and Pentium G3420.

PCIe version3.0Up to 3.0
PCI Express lanes2816

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.

i7-5820K 6.20
+404%
Pentium G3420 1.23

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.

i7-5820K 9841
+405%
Pentium G3420 1949

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.

i7-5820K 1171
+102%
Pentium G3420 581

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.

i7-5820K 5454
+458%
Pentium G3420 978

Gaming performance

Pros & cons summary


Performance score 6.20 1.23
Recency 1 September 2014 1 September 2013
Physical cores 6 2
Threads 12 2
Power consumption (TDP) 140 Watt 53 Watt

i7-5820K has a 404.1% higher aggregate performance score, an age advantage of 1 year, and 200% more physical cores and 500% more threads.

Pentium G3420, on the other hand, has 164.2% lower power consumption.

The Core i7-5820K is our recommended choice as it beats the Pentium G3420 in performance tests.


Should you still have questions on choice between Core i7-5820K and Pentium G3420, ask them in Comments section, and we shall answer.

Vote for your favorite

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


Intel Core i7-5820K
Core i7-5820K
Intel Pentium G3420
Pentium G3420

Similar processor comparisons

We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.

Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


3.7 389 votes

Rate Core i7-5820K on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
3.6 99 votes

Rate Pentium G3420 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about Core i7-5820K or Pentium G3420, agree or disagree with our judgements, or report an error or mismatch.