Ryzen 9 7845HX vs Ryzen 9 7940HX

VS

Aggregate performance score

Ryzen 9 7940HX
2024
16 cores / 32 threads, 55 Watt
34.21
+19.2%
Ryzen 9 7845HX
2023
12 cores / 24 threads, 55 Watt
28.71

Ryzen 9 7940HX outperforms Ryzen 9 7845HX by a moderate 19% based on our aggregate benchmark results.

Primary details

Comparing Ryzen 9 7940HX and Ryzen 9 7845HX processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking113159
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
SeriesAMD Dragon Range (Zen 4, Ryzen 7045)no data
Power efficiency58.8349.37
Architecture codenameDragon Range-HX (Zen 4) (2023−2024)Dragon Range-HX (Zen 4) (2023−2024)
Release date17 January 2024 (less than a year ago)4 January 2023 (1 year ago)

Detailed specifications

Ryzen 9 7940HX and Ryzen 9 7845HX 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)12 (Dodeca-Core)
Threads3224
Base clock speed2.4 GHz3 GHz
Boost clock speed5.2 GHz5.2 GHz
L1 cache1 MB64K (per core)
L2 cache16 MB1 MB (per core)
L3 cache64 MB64 MB (shared)
Chip lithography5 nmCCD = 5 nm, I/O = 6 nm
Die sizeno data2x 71 mm2
Maximum core temperature100 °C100 °C
Number of transistors9900 Million13,140 million
64 bit support++
Windows 11 compatibilityno data+
Unlocked multiplier-+

Compatibility

Information on Ryzen 9 7940HX and Ryzen 9 7845HX 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 configurationno data1
SocketFL1FL1
Power consumption (TDP)55 Watt55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 7940HX and Ryzen 9 7845HX. 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, SMEMMX, 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, SME
AES-NI++
FMA++
AVX++
Precision Boost 2no data+

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 9 7940HX and Ryzen 9 7845HX are enumerated here.

AMD-V-+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 7940HX and Ryzen 9 7845HX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR5DDR5

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardAMD Radeon 610M (400 - 2200 MHz)AMD Radeon 610M (400 - 2200 MHz)

Peripherals

Specifications and connection of peripherals supported by Ryzen 9 7940HX and Ryzen 9 7845HX.

PCIe versionno data5.0
PCI Express lanesno data28

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 7940HX 34.21
+19.2%
Ryzen 9 7845HX 28.71

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 7940HX 54339
+19.2%
Ryzen 9 7845HX 45597

Geekbench 6.3 Multi-Core

Ryzen 9 7940HX 16094
+27.9%
Ryzen 9 7845HX 12585

Gaming performance

Pros & cons summary


Performance score 34.21 28.71
Recency 17 January 2024 4 January 2023
Physical cores 16 12
Threads 32 24

Ryzen 9 7940HX has a 19.2% higher aggregate performance score, an age advantage of 1 year, and 33.3% more physical cores and 33.3% more threads.

The Ryzen 9 7940HX is our recommended choice as it beats the Ryzen 9 7845HX in performance tests.


Should you still have questions on choice between Ryzen 9 7940HX and Ryzen 9 7845HX, ask them in Comments section, and we shall answer.

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AMD Ryzen 9 7940HX
Ryzen 9 7940HX
AMD Ryzen 9 7845HX
Ryzen 9 7845HX

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Community ratings

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