Ryzen 7 PRO 7840HS vs Ryzen 9 7945HX

VS

Aggregate performance score

Ryzen 9 7945HX
2023
16 cores / 32 threads, 55 Watt
34.41
+104%
Ryzen 7 PRO 7840HS
2023
8 cores / 16 threads, 35 Watt
16.83

Ryzen 9 7945HX outperforms Ryzen 7 PRO 7840HS by a whopping 104% based on our aggregate benchmark results.

Primary details

Comparing Ryzen 9 7945HX and Ryzen 7 PRO 7840HS processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking111393
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
Seriesno dataAMD Phoenix (Zen 4, Ryzen 7040)
Power efficiency59.1745.48
Architecture codenameDragon Range-HX (Zen 4) (2023−2024)Phoenix-HS (Zen 4) (2023)
Release date4 January 2023 (1 year ago)13 June 2023 (1 year ago)

Detailed specifications

Ryzen 9 7945HX and Ryzen 7 PRO 7840HS 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 cores16 (Hexadeca-Core)8 (Octa-Core)
Threads3216
Base clock speed2.5 GHz3.8 GHz
Boost clock speed5.4 GHz5.1 GHz
L1 cache64K (per core)512 KB
L2 cache1 MB (per core)8 MB
L3 cache64 MB (shared)16 MB
Chip lithographyCCD = 5 nm, I/O = 6 nm4 nm
Die size2x 71 mm2178 mm2
Maximum core temperature100 °C100 °C
Number of transistors13,140 millionno data
64 bit support++
Windows 11 compatibility+no data
Unlocked multiplier+-

Compatibility

Information on Ryzen 9 7945HX and Ryzen 7 PRO 7840HS 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 configuration1no data
SocketFL1FP7/FP8
Power consumption (TDP)55 Watt35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 7945HX and Ryzen 7 PRO 7840HS. You'll probably need this information if you require some particular technology.

Instruction set extensionsMMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, AVX-512, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SMEno data
AES-NI+-
FMA+-
AVX+-
Precision Boost 2+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 9 7945HX and Ryzen 7 PRO 7840HS are enumerated here.

AMD-V+-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 7945HX and Ryzen 7 PRO 7840HS. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR5no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card
Compare
AMD Radeon 610M (400 - 2200 MHz)AMD Radeon 780M ( - 2700 MHz)

Peripherals

Specifications and connection of peripherals supported by Ryzen 9 7945HX and Ryzen 7 PRO 7840HS.

PCIe version5.0no data
PCI Express lanes28no 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.

Ryzen 9 7945HX 34.41
+104%
Ryzen 7 PRO 7840HS 16.83

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 7945HX 54660
+104%
Ryzen 7 PRO 7840HS 26730

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 7945HX 2736
+22.8%
Ryzen 7 PRO 7840HS 2228

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 7945HX 15895
+49.6%
Ryzen 7 PRO 7840HS 10627

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.

Ryzen 9 7945HX 19820
+34.2%
Ryzen 7 PRO 7840HS 14772

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 7945HX 5521
+126%
Ryzen 7 PRO 7840HS 2440

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 7945HX 308
+14.5%
Ryzen 7 PRO 7840HS 269

Geekbench 5.5 Multi-Core

Ryzen 9 7945HX 19802
+79.4%
Ryzen 7 PRO 7840HS 11037

Blender(-)

Ryzen 9 7945HX 94
Ryzen 7 PRO 7840HS 203
+116%

Geekbench 5.5 Single-Core

Ryzen 9 7945HX 2124
+12.5%
Ryzen 7 PRO 7840HS 1888

7-Zip Single

Ryzen 9 7945HX 7381
+13.6%
Ryzen 7 PRO 7840HS 6496

7-Zip

Ryzen 9 7945HX 140471
+111%
Ryzen 7 PRO 7840HS 66442

WebXPRT 3

Ryzen 9 7945HX 351
Ryzen 7 PRO 7840HS 363
+3.4%

CrossMark Overall

Ryzen 9 7945HX 2058
+27%
Ryzen 7 PRO 7840HS 1620

WebXPRT 4 Overall

Ryzen 9 7945HX 292
+20.5%
Ryzen 7 PRO 7840HS 242

Blender v3.3 Classroom CPU(-)

Ryzen 9 7945HX 149
Ryzen 7 PRO 7840HS 327
+119%

Geekbench 6.3 Multi-Core

Ryzen 9 7945HX 16765
+34.6%
Ryzen 7 PRO 7840HS 12457

Geekbench 6.3 Single-Core

Ryzen 9 7945HX 2880
+11.6%
Ryzen 7 PRO 7840HS 2581

Gaming performance

Pros & cons summary


Performance score 34.41 16.83
Integrated graphics card 2.85 18.32
Recency 4 January 2023 13 June 2023
Physical cores 16 8
Threads 32 16
Power consumption (TDP) 55 Watt 35 Watt

Ryzen 9 7945HX has a 104.5% higher aggregate performance score, and 100% more physical cores and 100% more threads.

Ryzen 7 PRO 7840HS, on the other hand, has 542.8% faster integrated GPU, an age advantage of 5 months, and 57.1% lower power consumption.

The Ryzen 9 7945HX is our recommended choice as it beats the Ryzen 7 PRO 7840HS in performance tests.


Should you still have questions on choice between Ryzen 9 7945HX and Ryzen 7 PRO 7840HS, 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 7945HX
Ryzen 9 7945HX
AMD Ryzen 7 PRO 7840HS
Ryzen 7 PRO 7840HS

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.


4.6 670 votes

Rate Ryzen 9 7945HX on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
4.6 58 votes

Rate Ryzen 7 PRO 7840HS on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about Ryzen 9 7945HX or Ryzen 7 PRO 7840HS, agree or disagree with our judgements, or report an error or mismatch.