Ryzen 7 7840U vs Ryzen 3 3300X

VS

Aggregate performance score

Ryzen 3 3300X
2020
4 cores / 8 threads, 65 Watt
8.77
Ryzen 7 7840U
2023
8 cores / 16 threads, 28 Watt
16.32
+86.1%

Ryzen 7 7840U outperforms Ryzen 3 3300X by an impressive 86% based on our aggregate benchmark results.

Primary details

Comparing Ryzen 3 3300X and Ryzen 7 7840U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking890425
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation30.99no data
Market segmentDesktop processorLaptop
Seriesno dataAMD Phoenix (Zen 4, Ryzen 7040)
Power efficiency12.3053.15
Architecture codenameMatisse (Zen 2) (2019−2020)Phoenix-U (Zen 4) (2023)
Release date24 April 2020 (4 years ago)May 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 7 7840U 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)8 (Octa-Core)
Threads816
Base clock speed3.8 GHz3.3 GHz
Boost clock speed4.3 GHz5.1 GHz
L1 cache96K (per core)64K (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-+
Unlocked multiplier+-

Compatibility

Information on Ryzen 3 3300X and Ryzen 7 7840U 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 Watt28 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 3 3300X and Ryzen 7 7840U. 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 2no data
AES-NI++
AVX++
Precision Boost 2++

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 3 3300X and Ryzen 7 7840U are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 3 3300X and Ryzen 7 7840U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4-3200DDR5-5600

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataAMD Radeon 780M

Peripherals

Specifications and connection of peripherals supported by Ryzen 3 3300X and Ryzen 7 7840U.

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 8.77
Ryzen 7 7840U 16.32
+86.1%

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 7 7840U 24975
+86%

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.

Ryzen 3 3300X 1711
Ryzen 7 7840U 2081
+21.6%

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.

Ryzen 3 3300X 5940
Ryzen 7 7840U 8731
+47%

Cinebench 10 32-bit single-core

Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.

Ryzen 3 3300X 5856
Ryzen 7 7840U 6669
+13.9%

Cinebench 10 32-bit multi-core

Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.

Ryzen 3 3300X 25416
Ryzen 7 7840U 38490
+51.4%

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 7 7840U 3.51
+72.1%

Cinebench 11.5 64-bit multi-core

Cinebench Release 11.5 Multi Core is a variant of Cinebench R11.5 which uses all the processor threads. A maximum of 64 threads is supported in this version.

Ryzen 3 3300X 12
Ryzen 7 7840U 23
+91.5%

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 7 7840U 1990
+85.8%

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 7 7840U 264
+35.4%

Cinebench 11.5 64-bit single-core

Cinebench R11.5 is an old benchmark 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 loads a single thread with ray tracing to render a glossy room full of crystal spheres and light sources.

Ryzen 3 3300X 2.28
Ryzen 7 7840U 2.79
+22.4%

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 7 7840U 8.5
+43.2%

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 7 7840U 109
+76.1%

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 7 7840U 237
+1.6%

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
+25.4%
Ryzen 7 7840U 5723

Geekbench 5.5 Multi-Core

Ryzen 3 3300X 5311
Ryzen 7 7840U 9382
+76.7%

Blender(-)

Ryzen 3 3300X 449
+73.2%
Ryzen 7 7840U 260

Geekbench 5.5 Single-Core

Ryzen 3 3300X 1296
Ryzen 7 7840U 1738
+34.1%

7-Zip Single

Ryzen 3 3300X 5329
Ryzen 7 7840U 5952
+11.7%

7-Zip

Ryzen 3 3300X 30353
Ryzen 7 7840U 55145
+81.7%

WebXPRT 3

Ryzen 3 3300X 233
Ryzen 7 7840U 262
+12.4%

Gaming performance

Pros & cons summary


Performance score 8.77 16.32
Physical cores 4 8
Threads 8 16
Chip lithography 7 nm 4 nm
Power consumption (TDP) 65 Watt 28 Watt

Ryzen 7 7840U has a 86.1% higher aggregate performance score, 100% more physical cores and 100% more threads, a 75% more advanced lithography process, and 132.1% lower power consumption.

The Ryzen 7 7840U 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 7 7840U is a notebook one.


Should you still have questions on choice between Ryzen 3 3300X and Ryzen 7 7840U, ask them in Comments section, and we shall answer.

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AMD Ryzen 3 3300X
Ryzen 3 3300X
AMD Ryzen 7 7840U
Ryzen 7 7840U

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Community ratings

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