i3-5005U vs i7-7820X

Aggregate performance score

Core i7-7820X
2017
8 cores / 16 threads, 140 Watt
10.81
+751%
Core i3-5005U
2015
2 cores / 4 threads, 15 Watt
1.27

Core i7-7820X outperforms Core i3-5005U by a whopping 751% based on our aggregate benchmark results.

Primary details

Comparing Core i7-7820X and Core i3-5005U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking7142279
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation3.36no data
Market segmentDesktop processorLaptop
SeriesIntel Core i7Intel Core i3
Power efficiency7.318.01
Architecture codenameSkylake (server) (2017−2018)Broadwell-U (2015)
Release date26 June 2017 (7 years ago)1 March 2015 (9 years ago)
Launch price (MSRP)$599$275

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core i7-7820X and Core i3-5005U 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 cores8 (Octa-Core)2 (Dual-core)
Threads164
Base clock speed3.6 GHz2 GHz
Boost clock speed4.5 GHz2 GHz
Bus typeDMI 3.0no data
Bus rate4 × 8 GT/s5 GT/s
Multiplier36no data
L1 cache64 KB (per core)64K (per core)
L2 cache1 MB (per core)256K (per core)
L3 cache11 MB (shared)3 MB (shared)
Chip lithography14 nm14 nm
Die sizeno data82 mm2
Maximum core temperature99 °C105 °C
Maximum case temperature (TCase)72 °C105 °C
Number of transistorsno data1300 Million
64 bit support++
Windows 11 compatibility+-
Unlocked multiplier+-

Compatibility

Information on Core i7-7820X and Core i3-5005U 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
SocketFCLGA2066FCBGA1168
Power consumption (TDP)140 Watt15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-7820X and Core i3-5005U. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI++
AVX++
Enhanced SpeedStep (EIST)++
Turbo Boost Technology2.0-
Hyper-Threading Technology++
TSX+-
Idle Statesno data+
Thermal Monitoring-+
Flex Memory Accessno data+
Smart Responseno data+
Turbo Boost Max 3.0+no data
FDIno data+
Fast Memory Accessno data+

Security technologies

Core i7-7820X and Core i3-5005U technologies aimed at improving security, for example, by protecting against hacks.

TXTno data-
EDB++
Secure Keyno data+
Identity Protection-+
OS Guardno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-7820X and Core i3-5005U are enumerated here.

AMD-V-+
VT-d++
VT-x++
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-7820X and Core i3-5005U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4-2666DDR3
Maximum memory size128 GB16 GB
Max memory channels42
Maximum memory bandwidth85.33 GB/s25.6 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardN/AIntel HD Graphics 5500
Max video memoryno data16 GB
Quick Sync Video-+
Clear Videono data+
Clear Video HDno data+
Graphics max frequencyno data850 MHz
InTru 3Dno data+

Graphics interfaces

Available interfaces and connections of Core i7-7820X and Core i3-5005U integrated GPUs.

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

Graphics image quality

Maximum display resolutions supported by Core i7-7820X and Core i3-5005U integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4no data2560x1600@60Hz
Max resolution over DisplayPortno data3840x2160@60Hz
Max resolution over VGAno dataN/A

Graphics API support

APIs supported by Core i7-7820X and Core i3-5005U integrated GPUs, sometimes API versions are included.

DirectXno data11.2/12
OpenGLno data4.3

Peripherals

Specifications and connection of peripherals supported by Core i7-7820X and Core i3-5005U.

PCIe version3.02.0
PCI Express lanes2812

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.

i7-7820X 10.81
+751%
i3-5005U 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.

i7-7820X 17165
+749%
i3-5005U 2022

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.

i7-7820X 1427
+129%
i3-5005U 622

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.

i7-7820X 7872
+531%
i3-5005U 1248

Gaming performance

Pros & cons summary


Performance score 10.81 1.27
Recency 26 June 2017 1 March 2015
Physical cores 8 2
Threads 16 4
Power consumption (TDP) 140 Watt 15 Watt

i7-7820X has a 751.2% higher aggregate performance score, an age advantage of 2 years, and 300% more physical cores and 300% more threads.

i3-5005U, on the other hand, has 833.3% lower power consumption.

The Core i7-7820X is our recommended choice as it beats the Core i3-5005U in performance tests.

Note that Core i7-7820X is a desktop processor while Core i3-5005U is a notebook one.


Should you still have questions on choice between Core i7-7820X and Core i3-5005U, 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 i7-7820X
Core i7-7820X
Intel Core i3-5005U
Core i3-5005U

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Community ratings

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Questions & comments

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