Ryzen 5 8645HS vs Ryzen 3 3300X

#ad 
Buy on Amazon
VS

Aggregate performance score

Ryzen 3 3300X
2020
4 cores / 8 threads, 65 Watt
8.45
Ryzen 5 8645HS
2023
6 cores / 12 threads, 45 Watt
14.47
+71.2%

Ryzen 5 8645HS outperforms Ryzen 3 3300X by an impressive 71% based on our aggregate benchmark results.

Primary details

Comparing Ryzen 3 3300X and Ryzen 5 8645HS processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking904499
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation31.96no data
Market segmentDesktop processorLaptop
Power efficiency12.3030.43
Architecture codenameMatisse (Zen 2) (2019−2020)Hawk Point-HS (Zen 4) (2023−2024)
Release date24 April 2020 (4 years ago)6 December 2023 (1 year ago)
Launch price (MSRP)$120no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Ryzen 3 3300X 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 cores4 (Quad-Core)6 (Hexa-Core)
Threads812
Base clock speed3.8 GHz4.3 GHz
Boost clock speed4.3 GHz5 GHz
L1 cache96K (per core)64 KB (per core)
L2 cache512K (per core)1 MB (per core)
L3 cache16 MB (shared)16 MB (shared)
Chip lithography7 nm4 nm
Die size74 mm2178 mm2
Maximum core temperatureno data100 °C
Maximum case temperature (TCase)95 °Cno data
Number of transistors3,800 million25,000 million
64 bit support++
Windows 11 compatibility-no data
Unlocked multiplier+-

Compatibility

Information on Ryzen 3 3300X 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 configuration11
SocketAM4FP8
Power consumption (TDP)65 Watt45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 3 3300X and Ryzen 5 8645HS. You'll probably need this information if you require some particular technology.

Instruction set extensions86x MMX(+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A,-64, AMD-V, AES, AVX, AVX2, FMA3, SHA, Precision Boost 2Ryzen AI, AES, AVX, AVX2, AVX512, FMA3, MMX (+), SHA, SSE, SSE2, SSE3, SSE4.1, SSE4.2, SSE4A, SSSE3
AES-NI++
AVX++
Precision Boost 2++

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 3 3300X and Ryzen 5 8645HS are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 3 3300X and Ryzen 5 8645HS. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4-3200DDR5

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataAMD Radeon 760M ( - 2600 MHz)

Peripherals

Specifications and connection of peripherals supported by Ryzen 3 3300X and Ryzen 5 8645HS.

PCIe version4.04.0
PCI Express lanes1620

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.

Ryzen 3 3300X 8.45
Ryzen 5 8645HS 14.47
+71.2%

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.

Ryzen 3 3300X 13425
Ryzen 5 8645HS 22985
+71.2%

wPrime 32

wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.

Ryzen 3 3300X 6.04
Ryzen 5 8645HS 3.29
+83.6%

Cinebench 15 64-bit multi-core

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

Ryzen 3 3300X 1071
Ryzen 5 8645HS 2094
+95.5%

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.

Ryzen 3 3300X 195
Ryzen 5 8645HS 270
+38.5%

TrueCrypt AES

TrueCrypt is a discontinued piece of software that was widely used for on-the-fly-encryption of disk partitions, now superseded by VeraCrypt. It contains several embedded performance tests, one of them being TrueCrypt AES, which measures data encryption speed using AES algorithm. Result is encryption speed in gigabytes per second.

Ryzen 3 3300X 5.9
Ryzen 5 8645HS 11
+86.4%

WinRAR 4.0

WinRAR 4.0 is an outdated version of a popular file archiver. It contains an internal speed test, using 'Best' setting of RAR compression on large chunks of randomly generated data. Its results are measured in kilobytes per second.

Ryzen 3 3300X 7177
+7.2%
Ryzen 5 8645HS 6695

x264 encoding pass 2

x264 Pass 2 is a slower variant of x264 video compression that produces a variable bit rate output file, which results in better quality since the higher bit rate is used when it is needed more. Benchmark result is still measured in frames per second.  

Ryzen 3 3300X 62
Ryzen 5 8645HS 122
+97.1%

x264 encoding pass 1

x264 version 4.0 is a video encoding benchmark uses MPEG 4 x264 compression method to compress a sample HD (720p) video. Pass 1 is a faster variant that produces a constant bit rate output file. Its result is measured in frames per second, which means how many frames of the source video file were encoded per second.  

Ryzen 3 3300X 234
Ryzen 5 8645HS 282
+20.6%

Geekbench 5.5 Multi-Core

Ryzen 3 3300X 5311
Ryzen 5 8645HS 9420
+77.4%

Blender(-)

Ryzen 3 3300X 449
+86.5%
Ryzen 5 8645HS 241

Geekbench 5.5 Single-Core

Ryzen 3 3300X 1296
Ryzen 5 8645HS 1915
+47.8%

7-Zip Single

Ryzen 3 3300X 5329
Ryzen 5 8645HS 6190
+16.2%

7-Zip

Ryzen 3 3300X 30353
Ryzen 5 8645HS 55608
+83.2%

WebXPRT 3

Ryzen 3 3300X 233
Ryzen 5 8645HS 295
+26.6%

Gaming performance

Pros & cons summary


Performance score 8.45 14.47
Recency 24 April 2020 6 December 2023
Physical cores 4 6
Threads 8 12
Chip lithography 7 nm 4 nm
Power consumption (TDP) 65 Watt 45 Watt

Ryzen 5 8645HS has a 71.2% higher aggregate performance score, an age advantage of 3 years, 50% more physical cores and 50% more threads, a 75% more advanced lithography process, and 44.4% lower power consumption.

The Ryzen 5 8645HS is our recommended choice as it beats the Ryzen 3 3300X in performance tests.

Note that Ryzen 3 3300X is a desktop processor while Ryzen 5 8645HS is a notebook one.


Should you still have questions on choice between Ryzen 3 3300X and Ryzen 5 8645HS, 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.


AMD Ryzen 3 3300X
Ryzen 3 3300X
AMD Ryzen 5 8645HS
Ryzen 5 8645HS

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.


4.4 1068 votes

Rate Ryzen 3 3300X on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
4.1 171 vote

Rate Ryzen 5 8645HS on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about Ryzen 3 3300X or Ryzen 5 8645HS, agree or disagree with our judgements, or report an error or mismatch.