Intel Core i5-8257U: specs and benchmarks

Intel Core i5-8257U


Intel started Intel Core i5-8257U sales 10 July 2019. This is Coffee Lake architecture notebook processor primarily aimed at office systems. It has 4 cores and 8 threads, and is based on 14 nm manufacturing technology, with a maximum frequency of 3900 MHz and a locked multiplier.

Compatibility-wise, this is FCBGA1528 processor with a TDP of 15 Watt.

It provides poor benchmark performance at 10.53 percent of a leader's which is AMD Ryzen Threadripper 3990X.

General info

Of Core i5-8257U processor market type (desktop or notebook), architecture and sales start time and price.
Place in performance rating
Intel Core i5
Architecture codename
Coffee Lake
Release date
10 July 2019

Technical specs

Core i5-8257U's quantitative parameters such as cores and threads number, clocks, manufacturing process, cache size and multiplier lock state. These parameters indirectly say of Core i5-8257U's performance, but to be more precise you have to review its test results.
Number of cores
Number of threads
Maximum frequency
3.9 GHz
L1 cache
256 KB
of 896 (Atom C3950)
L2 cache
1 MB
of 8 (FX-8350)
L3 cache
6 MB
Manufacturing process technology
14 nm
64 bit support


Information on Core i5-8257U compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one.
Power consumption (TDP)
15 Watt
of 650 (Atom Z500)

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-8257U. You'll probably need this information if you require some particular technology.

Virtualization technologies

Virtual machine speed-up technologies supported by Core i5-8257U are enumerated here.

Graphics specifications

General parameters of GPU integrated into Core i5-8257U.
Integrated graphics
Intel Iris Plus Graphics 645 (300 - 1050 MHz)

Benchmark performance

Non-gaming benchmarks performance of Core i5-8257U. Overall benchmark performance is measured in points in 0-100 range.

Overall benchmark performance


Cinebench 15 64-bit single-core


Cinebench 15 64-bit multi-core




Game benchmarks

Let's see how good Core i5-8257U is for gaming compared with game system requirements. Remember that sometimes official requirements may reflect real performance inaccurately.

Relative perfomance

Overall Core i5-8257U performance compared to nearest competitors. All CPU types participate.

AMD equivalent

We believe that the nearest equivalent to Core i5-8257U from AMD is Ryzen 3 4300U, which is faster by 1% and higher by 4 positions in our rating.

User rating

Here you can see the rating of the processor by users, as well as give your rating.

Advices and comments

Here you can ask a question about Core i5-8257U, agree or disagree with our judgements, or report an error or mismatch.