Intel Core i7-4820K vs Core i7-4771

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Combined performance score

i7-4771
4.65
+9.4%

Core i7-4771 outperforms Core i7-4820K by 9% in our combined benchmark results.

General info

Comparing Core i7-4771 and Core i7-4820K processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking11831264
Place by popularitynot in top-100not in top-100
Value for money0.541.23
Market segmentDesktop processorDesktop processor
Architecture codenameHaswell (2013−2015)Ivy Bridge-E (2013)
Release date1 September 2013 (10 years old)1 September 2013 (10 years old)
Launch price (MSRP)$450$399
Current price$540 (1.2x MSRP)$194 (0.5x MSRP)
Value for money

Performance per price, higher is better.

i7-4820K has 128% better value for money than i7-4771.

Technical specs

Core i7-4771 and Core i7-4820K 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)4 (Quad-Core)
Threads88
Base clock speed3.5 GHz3.7 GHz
Boost clock speed3.9 GHz3.9 GHz
L1 cache64 KB (per core)64 KB (per core)
L2 cache256 KB (per core)256 KB (per core)
L3 cache8 MB (shared)10 MB (shared)
Chip lithography22 nm22 nm
Die size177 mm2257 mm2
Maximum core temperature72 °C67 °C
Maximum case temperature (TCase)72 °Cno data
Number of transistors1,400 million1,860 million
64 bit support++
Windows 11 compatibility--
Unlocked multiplierNoYes

Compatibility

Information on Core i7-4771 and Core i7-4820K 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
SocketFCLGA1150FCLGA2011
Power consumption (TDP)84 Watt130 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-4771 and Core i7-4820K. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2Intel® SSE4.2, Intel® AVX
AES-NI++
AVX++
vPro+no data
Enhanced SpeedStep (EIST)++
My WiFi+no data
Turbo Boost Technology2.02.0
Hyper-Threading Technology++
TSX-no data
Idle States++
Thermal Monitoring++
SIPP+no data
Smart Responseno data+
Demand Based Switchingno data-
FDI+no data
StatusDiscontinuedDiscontinued

Security technologies

Core i7-4771 and Core i7-4820K technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-4771 and Core i7-4820K are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-4771 and Core i7-4820K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR3
Maximum memory size32 GB64 GB
Max memory channels24
Maximum memory bandwidth25.6 GB/s59.7 GB/s
ECC memory support--

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardIntel HD Graphics 4600no data
Max video memory2 GBno data
Quick Sync Video+no data
Clear Video HD+no data
Graphics max frequency1.2 GHzno data
InTru 3D+no data

Graphics interfaces

Available interfaces and connections of Core i7-4771 and Core i7-4820K integrated GPUs.

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

Graphics image quality

Maximum display resolutions supported by Core i7-4771 and Core i7-4820K 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 i7-4771 and Core i7-4820K integrated GPUs, sometimes API versions are included.

DirectX11.2/12no data
OpenGL4.3no data

Peripherals

Specifications and connection of peripherals supported by Core i7-4771 and Core i7-4820K.

PCIe versionUp to 3.03.0
PCI Express lanes1640

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.

i7-4771 4.65
+9.4%
i7-4820K 4.25

Core i7-4771 outperforms Core i7-4820K by 9% in our combined benchmark results.


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.

Benchmark coverage: 68%

i7-4771 7142
+9.4%
i7-4820K 6526

Core i7-4771 outperforms Core i7-4820K by 9% in Passmark.

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.

Benchmark coverage: 42%

i7-4771 1194
+81.5%
i7-4820K 658

Core i7-4771 outperforms Core i7-4820K by 81% in GeekBench 5 Single-Core.

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.

Benchmark coverage: 42%

i7-4771 3860
+58.2%
i7-4820K 2440

Core i7-4771 outperforms Core i7-4820K by 58% in GeekBench 5 Multi-Core.

3DMark Fire Strike Physics

Benchmark coverage: 4%

i7-4771 9120
i7-4820K 9210
+1%

Core i7-4820K outperforms Core i7-4771 by 1% in 3DMark Fire Strike Physics.

Gaming performance

Advantages and disadvantages


Performance score 4.65 4.25
Cost $450 $399
Power consumption (TDP) 84 Watt 130 Watt

We couldn't decide between Core i7-4771 and Core i7-4820K. The differences in performance seem too small.


Should you still have questions on choice between Core i7-4771 and Core i7-4820K, ask them in Comments section, and we shall answer.

User ratings

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


Intel Core i7-4771
Core i7-4771
Intel Core i7-4820K
Core i7-4820K

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Questions and comments

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