Ryzen 5 7640HS vs Ryzen 9 3900

#ad 
Buy on Amazon
VS

Aggregate performance score

Ryzen 9 3900
2019
12 cores / 24 threads, 65 Watt
19.34
+32.8%
Ryzen 5 7640HS
2023
6 cores / 12 threads, 35 Watt
14.56

Ryzen 9 3900 outperforms Ryzen 5 7640HS by a substantial 33% based on our aggregate benchmark results.

Primary details

Comparing Ryzen 9 3900 and Ryzen 5 7640HS processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking300495
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation20.75no data
Market segmentDesktop processorLaptop
SeriesAMD Matisse (Ryzen 3000 Desktop)no data
Power efficiency28.1639.37
Architecture codenameMatisse (Zen 2) (2019−2020)Phoenix-HS (Zen 4) (2023)
Release date24 September 2019 (5 years ago)January 2023 (1 year ago)
Launch price (MSRP)$499no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Ryzen 9 3900 and Ryzen 5 7640HS 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 cores12 (Dodeca-Core)6 (Hexa-Core)
Threads2412
Base clock speed3.1 GHz4.3 GHz
Boost clock speed4.3 GHz5 GHz
L1 cache64 KB (per core)64K (per core)
L2 cache512 KB (per core)1 MB (per core)
L3 cache64 MB16 MB (shared)
Chip lithography7 nm, 12 nm4 nm
Die size2x 74 mm2178 mm2
Maximum core temperatureno data100 °C
Number of transistors7,600 million25,000 million
64 bit support++
Windows 11 compatibility-+
Unlocked multiplier+-

Compatibility

Information on Ryzen 9 3900 and Ryzen 5 7640HS 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 Watt35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 3900 and Ryzen 5 7640HS. 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 9 3900 and Ryzen 5 7640HS are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 3900 and Ryzen 5 7640HS. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4-3200DDR5
Maximum memory size128 GBno data
Max memory channels2no data
Maximum memory bandwidth51.196 GB/sno data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardN/AAMD Radeon 760M ( - 2600 MHz)

Peripherals

Specifications and connection of peripherals supported by Ryzen 9 3900 and Ryzen 5 7640HS.

PCIe version4.04.0
PCI Express lanes2420

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 9 3900 19.34
+32.8%
Ryzen 5 7640HS 14.56

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 9 3900 30722
+32.8%
Ryzen 5 7640HS 23129

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 9 3900 1678
Ryzen 5 7640HS 2291
+36.5%

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 9 3900 9543
+4.2%
Ryzen 5 7640HS 9159

Cinebench 15 64-bit multi-core

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

Ryzen 9 3900 2804
+34.9%
Ryzen 5 7640HS 2079

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 9 3900 197
Ryzen 5 7640HS 271
+37.6%

Geekbench 5.5 Multi-Core

Ryzen 9 3900 10190
+8.9%
Ryzen 5 7640HS 9355

Blender(-)

Ryzen 9 3900 179
Ryzen 5 7640HS 245
+36.9%

Geekbench 5.5 Single-Core

Ryzen 9 3900 1246
Ryzen 5 7640HS 1941
+55.8%

7-Zip Single

Ryzen 9 3900 5134
Ryzen 5 7640HS 6465
+25.9%

7-Zip

Ryzen 9 3900 75612
+37.6%
Ryzen 5 7640HS 54954

WebXPRT 3

Ryzen 9 3900 227
Ryzen 5 7640HS 316
+39.2%

Gaming performance

Pros & cons summary


Performance score 19.34 14.56
Physical cores 12 6
Threads 24 12
Chip lithography 7 nm 4 nm
Power consumption (TDP) 65 Watt 35 Watt

Ryzen 9 3900 has a 32.8% higher aggregate performance score, and 100% more physical cores and 100% more threads.

Ryzen 5 7640HS, on the other hand, has a 75% more advanced lithography process, and 85.7% lower power consumption.

The Ryzen 9 3900 is our recommended choice as it beats the Ryzen 5 7640HS in performance tests.

Note that Ryzen 9 3900 is a desktop processor while Ryzen 5 7640HS is a notebook one.


Should you still have questions on choice between Ryzen 9 3900 and Ryzen 5 7640HS, 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 9 3900
Ryzen 9 3900
AMD Ryzen 5 7640HS
Ryzen 5 7640HS

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.


4.6 628 votes

Rate Ryzen 9 3900 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
4.3 504 votes

Rate Ryzen 5 7640HS on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about Ryzen 9 3900 or Ryzen 5 7640HS, agree or disagree with our judgements, or report an error or mismatch.