i3-5157U vs i7-7800X

Aggregate performance score

Core i7-7800X
2017
6 cores / 12 threads, 140 Watt
8.10
+397%
Core i3-5157U
2015
2 cores / 4 threads, 28 Watt
1.63

Core i7-7800X outperforms Core i3-5157U by a whopping 397% based on our aggregate benchmark results.

Primary details

Comparing Core i7-7800X and Core i3-5157U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking9262077
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation3.29no data
Market segmentDesktop processorLaptop
SeriesIntel Core i7Intel Core i3
Power efficiency5.485.51
Architecture codenameSkylake (server) (2017−2018)Broadwell-U (2015)
Release date26 June 2017 (7 years ago)1 March 2015 (9 years ago)
Launch price (MSRP)$383$315

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core i7-7800X and Core i3-5157U 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)
Threads124
Base clock speed3.5 GHz2.5 GHz
Boost clock speed4 GHz2.5 GHz
Bus typeDMI 3.0no data
Bus rate4 × 8 GT/s5 GT/s
Multiplier35no data
L1 cache64 KB (per core)64K (per core)
L2 cache1 MB (per core)256K (per core)
L3 cache8.25 MB (shared)3 MB (shared)
Chip lithography14 nm14 nm
Die sizeno data133 mm2
Maximum core temperature100 °C105 °C
Maximum case temperature (TCase)72 °C105 °C
Number of transistorsno data1900 Million
64 bit support++
Windows 11 compatibility+-
Unlocked multiplier+-

Compatibility

Information on Core i7-7800X and Core i3-5157U 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 Watt28 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-7800X and Core i3-5157U. 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+
FDIno data+
Fast Memory Accessno data+

Security technologies

Core i7-7800X and Core i3-5157U 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 i7-7800X and Core i3-5157U are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-7800X and Core i3-5157U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4-2400DDR3
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 Iris Graphics 6100
Max video memoryno data16 GB
Quick Sync Video-+
Clear Videono data+
Clear Video HDno data+
Graphics max frequencyno data1 GHz
InTru 3Dno data+

Graphics interfaces

Available interfaces and connections of Core i7-7800X and Core i3-5157U integrated GPUs.

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

Graphics image quality

Maximum display resolutions supported by Core i7-7800X and Core i3-5157U 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 i7-7800X and Core i3-5157U integrated GPUs, sometimes API versions are included.

DirectXno data11.2/12
OpenGLno data4.3

Peripherals

Specifications and connection of peripherals supported by Core i7-7800X and Core i3-5157U.

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.

i7-7800X 8.10
+397%
i3-5157U 1.63

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.

i7-7800X 12872
+396%
i3-5157U 2593

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.

i7-7800X 1358
+83.8%
i3-5157U 739

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.

i7-7800X 6148
+311%
i3-5157U 1496

Gaming performance

Pros & cons summary


Performance score 8.10 1.63
Recency 26 June 2017 1 March 2015
Physical cores 6 2
Threads 12 4
Power consumption (TDP) 140 Watt 28 Watt

i7-7800X has a 396.9% higher aggregate performance score, an age advantage of 2 years, and 200% more physical cores and 200% more threads.

i3-5157U, on the other hand, has 400% lower power consumption.

The Core i7-7800X is our recommended choice as it beats the Core i3-5157U in performance tests.

Note that Core i7-7800X is a desktop processor while Core i3-5157U is a notebook one.


Should you still have questions on choice between Core i7-7800X and Core i3-5157U, 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 i7-7800X
Core i7-7800X
Intel Core i3-5157U
Core i3-5157U

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.


3.9 183 votes

Rate Core i7-7800X on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
3.5 8 votes

Rate Core i3-5157U on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about Core i7-7800X or Core i3-5157U, agree or disagree with our judgements, or report an error or mismatch.