AMD Ryzen 9 7940HX vs AMD Ryzen 9 7945HX3D

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Note: The information shown below is based on a pre-sample. Technical details or benchmark results may be different in the final version of this processor.

CPU comparison with benchmarks


AMD Ryzen 9 7940HX CPU1 vs CPU2 AMD Ryzen 9 7945HX3D
AMD Ryzen 9 7940HX AMD Ryzen 9 7945HX3D

CPU comparison

In this CPU comparison, we compare the AMD Ryzen 9 7940HX and the AMD Ryzen 9 7945HX3D and use benchmarks to check which processor is faster.

We compare the AMD Ryzen 9 7940HX 16 core processor released in Q1/2023 with the AMD Ryzen 9 7945HX3D which has 16 CPU cores and was introduced in Q3/2023.
AMD Ryzen 9 (35) Family AMD Ryzen 9 (35)
AMD Ryzen 7045 (6) CPU group AMD Ryzen 7045 (6)
6 Generation 6
Dragon Range (Zen 4) Architecture Dragon Range (Zen 4)
Mobile Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The AMD Ryzen 9 7940HX is a 16 core processor with a clock frequency of 2.30 GHz (5.20 GHz). The processor can compute 32 threads at the same time. The AMD Ryzen 9 7945HX3D clocks with 2.30 GHz (5.40 GHz), has 16 CPU cores and can calculate 32 threads in parallel.

AMD Ryzen 9 7940HX Characteristic AMD Ryzen 9 7945HX3D
16 Cores 16
32 Threads 32
normal Core architecture normal
Yes Hyperthreading Yes
Yes Overclocking ? No
2.30 GHz Frequency 2.30 GHz
5.20 GHz Turbo Frequency (1 Core) 5.40 GHz
-- Turbo Frequency (All Cores) --

Artificial Intelligence and Machine Learning

Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.

AMD Ryzen 9 7940HX Characteristic AMD Ryzen 9 7945HX3D
-- AI hardware --
-- AI specifications --

Internal Graphics

Graphics (iGPU) integrated into the processor not only enable image output without having to rely on a dedicated graphics solution, but can also efficiently accelerate video playback.

AMD Radeon 610M GPU AMD Radeon 610M
0.40 GHz GPU frequency 0.40 GHz
2.20 GHz GPU (Turbo) 2.20 GHz
9 GPU Generation 9
6 nm Technology 6 nm
3 Max. displays 3
2 Compute units 2
128 Shader 128
Yes Hardware Raytracing Yes
No Frame Generation No
8 GB Max. GPU Memory 8 GB
12 DirectX Version 12

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.

AMD Radeon 610M GPU AMD Radeon 610M
Decode / Encode Codec h265 / HEVC (8 bit) Decode / Encode
Decode / Encode Codec h265 / HEVC (10 bit) Decode / Encode
Decode / Encode Codec h264 Decode / Encode
Decode / Encode Codec VP9 Decode / Encode
Decode / Encode Codec VP8 Decode / Encode
Decode Codec AV1 Decode
Decode / Encode Codec AVC Decode / Encode
Decode Codec VC-1 Decode
Decode / Encode Codec JPEG Decode / Encode

Memory & PCIe

Up to 128 GB of memory in a maximum of 2 memory channels is supported by the AMD Ryzen 9 7940HX, while the AMD Ryzen 9 7945HX3D supports a maximum of 64 GB of memory with a maximum memory bandwidth of 83.2 GB/s enabled.

AMD Ryzen 9 7940HX Characteristic AMD Ryzen 9 7945HX3D
DDR5-5200 Memory DDR5-5200
128 GB Max. Memory 64 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
83.2 GB/s Max. Bandwidth 83.2 GB/s
Yes ECC No
16.00 MB L2 Cache 16.00 MB
64.00 MB L3 Cache 128.00 MB
5.0 PCIe version 5.0
28 PCIe lanes 28
110.3 GB/s PCIe Bandwidth 110.3 GB/s

Thermal Management

The AMD Ryzen 9 7940HX has a TDP of 55 W. The TDP of the AMD Ryzen 9 7945HX3D is 55 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

AMD Ryzen 9 7940HX Characteristic AMD Ryzen 9 7945HX3D
55 W TDP (PL1 / PBP) 55 W
-- TDP (PL2) --
75 W TDP up 75 W
-- TDP down --
100 °C Tjunction max. 89 °C

Technical details

The AMD Ryzen 9 7940HX has 80.00 MB cache and is manufactured in 5 nm. The cache of AMD Ryzen 9 7945HX3D is at 144.00 MB. The processor is manufactured in 5 nm.

AMD Ryzen 9 7940HX Characteristic AMD Ryzen 9 7945HX3D
5 nm Technology 5 nm
Chiplet Chip design Chiplet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512 ISA extensions SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512
FL1 Socket FL1
AMD-V, SVM Virtualization AMD-V, SVM
Yes AES-NI Yes
Windows 10, Windows 11, Linux Operating systems Windows 10, Windows 11, Linux
Q1/2023 Release date Q3/2023
-- Release price --
show more data show more data


Rate these processors

Here you can rate the AMD Ryzen 9 7940HX to help other visitors make their purchasing decisions. The average rating is 4.9 stars (8 ratings). Rate now:
Here you can rate the AMD Ryzen 9 7945HX3D to help other visitors make their purchasing decisions. The average rating is 4.0 stars (5 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 2 CPU benchmarks
AMD Ryzen 9 7940HX (97%)
AMD Ryzen 9 7945HX3D (100%)
⌀ Multi core performance in 2 CPU benchmarks
AMD Ryzen 9 7940HX (99%)
AMD Ryzen 9 7945HX3D (100%)

Cinebench R23 (Single-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
AMD Ryzen 9 7940HX AMD Ryzen 9 7940HX
16C 32T @ 5.20 GHzNot verified
1864 (97%)
AMD Ryzen 9 7945HX3D AMD Ryzen 9 7945HX3D
16C 32T @ 5.40 GHz
1931 (100%)

Cinebench R23 (Multi-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
AMD Ryzen 9 7940HX AMD Ryzen 9 7940HX
16C 32T @ 2.30 GHzNot verified
33370 (100%)
AMD Ryzen 9 7945HX3D AMD Ryzen 9 7945HX3D
16C 32T @ 2.30 GHz
33450 (100%)

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
AMD Ryzen 9 7940HX AMD Ryzen 9 7940HX
16C 32T @ 5.20 GHzNot verified
2691 (97%)
AMD Ryzen 9 7945HX3D AMD Ryzen 9 7945HX3D
16C 32T @ 5.40 GHz
2783 (100%)

Geekbench 6 (Multi-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
AMD Ryzen 9 7940HX AMD Ryzen 9 7940HX
16C 32T @ 2.30 GHzNot verified
15792 (98%)
AMD Ryzen 9 7945HX3D AMD Ryzen 9 7945HX3D
16C 32T @ 2.30 GHz
16080 (100%)

iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
AMD Ryzen 9 7940HX AMD Ryzen 9 7940HX
AMD Radeon 610M @ 2.20 GHzNot verified
443 (100%)
AMD Ryzen 9 7945HX3D AMD Ryzen 9 7945HX3D
AMD Radeon 610M @ 2.20 GHz
443 (100%)

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
AMD Ryzen 9 7940HX AMD Ryzen 9 7940HX
16C 32T @ 5.20 GHzNot verified
0 (0%)
AMD Ryzen 9 7945HX3D AMD Ryzen 9 7945HX3D
16C 32T @ 5.40 GHz
2138 (100%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
AMD Ryzen 9 7940HX AMD Ryzen 9 7940HX
16C 32T @ 2.30 GHzNot verified
0 (0%)
AMD Ryzen 9 7945HX3D AMD Ryzen 9 7945HX3D
16C 32T @ 2.30 GHz
19880 (100%)

Cinebench R20 (Single-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
AMD Ryzen 9 7940HX AMD Ryzen 9 7940HX
16C 32T @ 5.20 GHzNot verified
0 (0%)
AMD Ryzen 9 7945HX3D AMD Ryzen 9 7945HX3D
16C 32T @ 5.40 GHz
747 (100%)

Cinebench R20 (Multi-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
AMD Ryzen 9 7940HX AMD Ryzen 9 7940HX
16C 32T @ 2.30 GHzNot verified
0 (0%)
AMD Ryzen 9 7945HX3D AMD Ryzen 9 7945HX3D
16C 32T @ 2.30 GHz
13036 (100%)

Cinebench R15 (Single-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
AMD Ryzen 9 7940HX AMD Ryzen 9 7940HX
16C 32T @ 5.20 GHzNot verified
0 (0%)
AMD Ryzen 9 7945HX3D AMD Ryzen 9 7945HX3D
16C 32T @ 5.40 GHz
310 (100%)

Cinebench R15 (Multi-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
AMD Ryzen 9 7940HX AMD Ryzen 9 7940HX
16C 32T @ 2.30 GHzNot verified
0 (0%)
AMD Ryzen 9 7945HX3D AMD Ryzen 9 7945HX3D
16C 32T @ 2.30 GHz
5602 (100%)

CPU performance per watt (efficiency)

Efficiency of the processor under full load in the Cinebench R23 (multi-core) benchmark. The benchmark result is divided by the average energy required (CPU package power in watts). The higher the value, the more efficient the CPU is under full load.
AMD Ryzen 9 7940HX AMD Ryzen 9 7940HX
2.30 GHz Not verified
0 (0%)
AMD Ryzen 9 7945HX3D AMD Ryzen 9 7945HX3D
33,450 CB R23 MC @ 104 W
322 (100%)

Devices using this processor

AMD Ryzen 9 7940HX AMD Ryzen 9 7945HX3D
Unknown ASUS ROG Strix SCAR 17 X3D

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