i5-9400F vs Celeron B840

VS

Aggregate performance score

Celeron B840
2011
2 cores / 2 threads, 35 Watt
0.61
Core i5-9400F
2019
6 cores / 6 threads, 65 Watt
5.96
+877%

Core i5-9400F outperforms Celeron B840 by a whopping 877% based on our aggregate benchmark results.

Primary details

Comparing Celeron B840 and Core i5-9400F processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking28011108
Place by popularitynot in top-10024
Cost-effectiveness evaluationno data9.44
Market segmentLaptopDesktop processor
SeriesIntel CeleronIntel Core i5
Power efficiency1.658.68
Architecture codenameSandy Bridge (2011−2013)Coffee Lake-R (2018−2019)
Release date1 July 2011 (13 years ago)8 January 2019 (5 years ago)
Launch price (MSRP)$86$182

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Celeron B840 and Core i5-9400F 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 cores2 (Dual-core)6 (Hexa-Core)
Threads26
Base clock speed1.9 GHz2.9 GHz
Boost clock speed1.9 GHz4.1 GHz
Bus typeDMI 2.0DMI 3.0
Bus rate4 × 5 GT/s4 × 8 GT/s
Multiplier1929
L1 cache64K (per core)64K (per core)
L2 cache256K (per core)256K (per core)
L3 cache2 MB (shared)9 MB (shared)
Chip lithography32 nm14 nm
Die size131 mm2149 mm2
Maximum core temperature100 °C100 °C
Maximum case temperature (TCase)no data72 °C
Number of transistors504 millionno data
64 bit support++
Windows 11 compatibility-+

Compatibility

Information on Celeron B840 and Core i5-9400F 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 (Uniprocessor)
SocketFCPGA988,PGA988FCLGA1151
Power consumption (TDP)35 Watt65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron B840 and Core i5-9400F. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI-+
FMA+-
AVX-+
Enhanced SpeedStep (EIST)++
My WiFi+no data
Turbo Boost Technology-2.0
Hyper-Threading Technology--
Idle States++
Thermal Monitoring++
Flex Memory Access+no data
Demand Based Switching-no data
FDI+no data
Fast Memory Access+no data

Security technologies

Celeron B840 and Core i5-9400F technologies aimed at improving security, for example, by protecting against hacks.

TXT--
EDB++
Secure Keyno data+
MPX-+
Identity Protection-+
SGXno dataYes with Intel® ME
OS Guardno data+
Anti-Theft-no data

Virtualization technologies

Virtual machine speed-up technologies supported by Celeron B840 and Core i5-9400F are enumerated here.

VT-d-+
VT-x++
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron B840 and Core i5-9400F. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR4-2666
Maximum memory size16 GB128 GB
Max memory channels22
Maximum memory bandwidth21.335 GB/s42.671 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardIntel HD Graphics for 2nd Generation Intel Processorsno data
Graphics max frequency1 GHzno data

Graphics interfaces

Available interfaces and connections of Celeron B840 and Core i5-9400F integrated GPUs.

Number of displays supported2no data
eDP+no data
DisplayPort+-
HDMI+-
SDVO+no data
CRT+no data

Peripherals

Specifications and connection of peripherals supported by Celeron B840 and Core i5-9400F.

PCIe version2.03.0
PCI Express lanes1616

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.

Celeron B840 0.61
i5-9400F 5.96
+877%

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.

Celeron B840 967
i5-9400F 9467
+879%

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.

Celeron B840 328
i5-9400F 1403
+328%

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.

Celeron B840 597
i5-9400F 4906
+722%

Gaming performance

Pros & cons summary


Performance score 0.61 5.96
Recency 1 July 2011 8 January 2019
Physical cores 2 6
Threads 2 6
Chip lithography 32 nm 14 nm
Power consumption (TDP) 35 Watt 65 Watt

Celeron B840 has 85.7% lower power consumption.

i5-9400F, on the other hand, has a 877% higher aggregate performance score, an age advantage of 7 years, 200% more physical cores and 200% more threads, and a 128.6% more advanced lithography process.

The Core i5-9400F is our recommended choice as it beats the Celeron B840 in performance tests.

Be aware that Celeron B840 is a notebook processor while Core i5-9400F is a desktop one.


Should you still have questions on choice between Celeron B840 and Core i5-9400F, 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 Celeron B840
Celeron B840
Intel Core i5-9400F
Core i5-9400F

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.


1.9 17 votes

Rate Celeron B840 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
4.9 56762 votes

Rate Core i5-9400F on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about Celeron B840 or Core i5-9400F, agree or disagree with our judgements, or report an error or mismatch.