Ryzen 5 8645HS vs Celeron N2840

Place in the ranking	3042	499
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Celeron	no data
Power efficiency	4.98	30.29
Architecture codename	Bay Trail-M (2013−2014)	Hawk Point-HS (Zen 4) (2023−2024)
Release date	22 May 2014 (10 years ago)	6 December 2023 (1 year ago)

Detailed specifications

Celeron N2840 and Ryzen 5 8645HS 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 cores	2 (Dual-core)	6 (Hexa-Core)
Threads	2	12
Base clock speed	2.16 GHz	4.3 GHz
Boost clock speed	2.58 GHz	5 GHz
L1 cache	56K (per core)	64 KB (per core)
L2 cache	512K (per core)	1 MB (per core)
L3 cache	0 KB	16 MB (shared)
Chip lithography	22 nm	4 nm
Die size	no data	178 mm²
Maximum core temperature	100 °C	100 °C
Number of transistors	no data	25,000 million
64 bit support	+	+
Windows 11 compatibility	-	no data

Compatibility

Information on Celeron N2840 and Ryzen 5 8645HS 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 configuration	1	1
Socket	FCBGA1170	FP8
Power consumption (TDP)	7.5 Watt	45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron N2840 and Ryzen 5 8645HS. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Ryzen AI, AES, AVX, AVX2, AVX512, FMA3, MMX (+), SHA, SSE, SSE2, SSE3, SSE4.1, SSE4.2, SSE4A, SSSE3
AES-NI	-	+
AVX	-	+
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
Idle States	+	no data
Smart Connect	+	no data
Precision Boost 2	no data	+

Security technologies

Celeron N2840 and Ryzen 5 8645HS technologies aimed at improving security, for example, by protecting against hacks.

EDB	+	no data
Secure Key	+	no data
Anti-Theft	-	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Celeron N2840 and Ryzen 5 8645HS are enumerated here.

AMD-V	-	+
VT-d	-	no data
VT-x	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron N2840 and Ryzen 5 8645HS. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR5
Maximum memory size	8 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	21.32 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare	Intel HD Graphics for Intel Atom Processor Z3700 Series	AMD Radeon 760M ( - 2600 MHz)
Quick Sync Video	+	-
Graphics max frequency	792 MHz	no data

Graphics interfaces

Available interfaces and connections of Celeron N2840 and Ryzen 5 8645HS integrated GPUs.

Number of displays supported

no data

Peripherals

Specifications and connection of peripherals supported by Celeron N2840 and Ryzen 5 8645HS.

PCIe version	2.0	4.0
PCI Express lanes	4	20
USB revision	3.0 and 2.0	no data
Total number of SATA ports	2	no data
Number of USB ports	5	no data

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 N2840 0.37

Ryzen 5 8645HS 14.48
+3814%

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 N2840 588

Ryzen 5 8645HS 23003
+3812%

3DMark06 CPU

3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.

Celeron N2840 1510

Ryzen 5 8645HS 14055
+831%

Cinebench 15 64-bit multi-core

Cinebench Release 15 Multi Core is a variant of Cinebench R15 which uses all the processor threads.

Celeron N2840 76

Ryzen 5 8645HS 2094
+2655%

Cinebench 15 64-bit single-core

Cinebench R15 (standing for Release 15) is a benchmark made by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version (sometimes called Single-Thread) only uses a single processor thread to render a room full of reflective spheres and light sources.

Celeron N2840 38

Ryzen 5 8645HS 270
+611%

Gaming performance

Pros & cons summary

Performance score	0.37	14.48
Integrated graphics card	0.77	14.98
Recency	22 May 2014	6 December 2023
Physical cores	2	6
Threads	2	12
Chip lithography	22 nm	4 nm
Power consumption (TDP)	7 Watt	45 Watt

Celeron N2840 has 542.9% lower power consumption.

Ryzen 5 8645HS, on the other hand, has a 3813.5% higher aggregate performance score, 1845.5% faster integrated GPU, an age advantage of 9 years, 200% more physical cores and 500% more threads, and a 450% more advanced lithography process.

The Ryzen 5 8645HS is our recommended choice as it beats the Celeron N2840 in performance tests.

Should you still have questions on choice between Celeron N2840 and Ryzen 5 8645HS, ask them in Comments section, and we shall answer.