Ryzen 9 7945HX vs Ryzen 9 7845HX

VS

Aggregate performance score

Ryzen 9 7845HX
2023
12 cores / 24 threads, 55 Watt
28.71
Ryzen 9 7945HX
2023
16 cores / 32 threads, 55 Watt
34.42
+19.9%

Ryzen 9 7945HX outperforms Ryzen 9 7845HX by a significant 20% based on our aggregate benchmark results.

Primary details

Comparing Ryzen 9 7845HX and Ryzen 9 7945HX processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking159111
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
Power efficiency49.4059.23
Architecture codenameDragon Range-HX (Zen 4) (2023−2024)Dragon Range-HX (Zen 4) (2023−2024)
Release date4 January 2023 (1 year ago)4 January 2023 (1 year ago)

Detailed specifications

Ryzen 9 7845HX and Ryzen 9 7945HX 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)16 (Hexadeca-Core)
Threads2432
Base clock speed3 GHz2.5 GHz
Boost clock speed5.2 GHz5.4 GHz
L1 cache64K (per core)64K (per core)
L2 cache1 MB (per core)1 MB (per core)
L3 cache64 MB (shared)64 MB (shared)
Chip lithographyCCD = 5 nm, I/O = 6 nmCCD = 5 nm, I/O = 6 nm
Die size2x 71 mm22x 71 mm2
Maximum core temperature100 °C100 °C
Number of transistors13,140 million13,140 million
64 bit support++
Windows 11 compatibility++
Unlocked multiplier++

Compatibility

Information on Ryzen 9 7845HX and Ryzen 9 7945HX 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
SocketFL1FL1
Power consumption (TDP)55 Watt55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 7845HX and Ryzen 9 7945HX. 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 2++

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 9 7845HX and Ryzen 9 7945HX are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 7845HX and Ryzen 9 7945HX. 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 7845HX and Ryzen 9 7945HX.

PCIe version5.05.0
PCI Express lanes2828

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 7845HX 28.71
Ryzen 9 7945HX 34.42
+19.9%

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 7845HX 45597
Ryzen 9 7945HX 54668
+19.9%

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 7845HX 2651
Ryzen 9 7945HX 2736
+3.2%

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 7845HX 13990
Ryzen 9 7945HX 15895
+13.6%

Cinebench 15 64-bit multi-core

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

Ryzen 9 7845HX 4320
Ryzen 9 7945HX 5521
+27.8%

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 9 7845HX 295
Ryzen 9 7945HX 308
+4.4%

Geekbench 5.5 Multi-Core

Ryzen 9 7845HX 15068
Ryzen 9 7945HX 19802
+31.4%

Blender(-)

Ryzen 9 7845HX 117
+24.5%
Ryzen 9 7945HX 94

Geekbench 5.5 Single-Core

Ryzen 9 7845HX 2008
Ryzen 9 7945HX 2124
+5.8%

7-Zip Single

Ryzen 9 7845HX 7018
Ryzen 9 7945HX 7381
+5.2%

7-Zip

Ryzen 9 7845HX 106033
Ryzen 9 7945HX 140471
+32.5%

WebXPRT 3

Ryzen 9 7845HX 357
+1.7%
Ryzen 9 7945HX 351

CrossMark Overall

Ryzen 9 7845HX 1992
Ryzen 9 7945HX 2058
+3.3%

WebXPRT 4 Overall

Ryzen 9 7845HX 282
Ryzen 9 7945HX 292
+3.4%

Blender v3.3 Classroom CPU(-)

Ryzen 9 7845HX 185
+24.2%
Ryzen 9 7945HX 149

Geekbench 6.3 Multi-Core

Ryzen 9 7845HX 12585
Ryzen 9 7945HX 16765
+33.2%

Geekbench 6.3 Single-Core

Ryzen 9 7845HX 2729
Ryzen 9 7945HX 2880
+5.5%

Gaming performance

Pros & cons summary


Performance score 28.71 34.42
Physical cores 12 16
Threads 24 32

Ryzen 9 7945HX has a 19.9% higher aggregate performance score, and 33.3% more physical cores and 33.3% more threads.

The Ryzen 9 7945HX is our recommended choice as it beats the Ryzen 9 7845HX in performance tests.


Should you still have questions on choice between Ryzen 9 7845HX and Ryzen 9 7945HX, ask them in Comments section, and we shall answer.

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AMD Ryzen 9 7845HX
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