AMD Ryzen 9 7900X vs AMD Ryzen 9 7945HX

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CPU comparison with benchmarks

-VS-

CPU lineage

AMD Ryzen 9 7900X or AMD Ryzen 9 7900X – which processor offers superior performance? In this comparison, we examine disparities and assess which of these two CPUs outperforms the other. We delve into technical specifications and benchmark outcomes.
The AMD Ryzen 9 7900X features 12 processor cores and has the capability to manage 24 threads concurrently.
It was released in Q4/2022 and belongs to the 6 generation of the AMD Ryzen 9 series.
To use the AMD Ryzen 9 7900X, you'll need a motherboard with a AM5 (LGA 1718) socket.
The AMD Ryzen 9 7945HX features 16 processor cores and has the capability to manage 32 threads concurrently.
It was released in Q1/2023 and belongs to the 6 generation of the AMD Ryzen 9 series.
To use the AMD Ryzen 9 7945HX, you'll need a motherboard with a FL1 socket.
Desktop / Server Segment Mobile
AMD Ryzen 9 7900X Name AMD Ryzen 9 7945HX
AMD Ryzen 9 Family AMD Ryzen 9
6 Generation 6
AMD Ryzen 7000 Group AMD Ryzen 7045
 
 

CPU Cores and Base Frequency

The AMD Ryzen 9 7900X has 12 CPU cores and can calculate 24 threads in parallel.
The clock frequency of the AMD Ryzen 9 7900X is 4.7 GHz
and turbo frequency for one core is 5.6 GHz.
The number of CPU cores greatly affects the speed of the processor and is an important performance indicator.
The AMD Ryzen 9 7945HX has 16 CPU cores and can calculate 32 threads in parallel.
The clock frequency of the AMD Ryzen 9 7945HX is 2.5 GHz
and turbo frequency for one core is 5.4 GHz.
5.6 GHz Turbo Frequency (1 core) 5.4 GHz
Yes Overclocking Yes
normal Core architecture normal
4.7 GHz Frequency 2.5 GHz
24 Threads 32
Yes Hyperthreading Yes
12 CPU Cores 16
12x Cores 16x Zen 4
 
 

Internal Graphics

The AMD Ryzen 9 7900X has integrated graphics, called iGPU for short.
Specifically, the AMD Ryzen 9 7900X uses the AMD Radeon Graphics (Raphael), which has 128 texture shaders
and 2 execution units.
The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
The AMD Ryzen 9 7945HX has integrated graphics, called iGPU for short.
Specifically, the AMD Ryzen 9 7945HX uses the AMD Radeon 610M Graphics, which has 128 texture shaders
0.4 GHz GPU frequency 0.4 GHz
Q3/2022 Release date Q3/2022
12 Direct X 12
AMD Radeon Graphics (Raphael) GPU name AMD Radeon 610M Graphics
5 nm Technology 6 nm
-- Max. displays --
128 Shaders 128
8.0 GB Max. GPU Memory 8.0 GB
2 Execution units 2
9 Generation 9
2.2 GHz GPU (Turbo) 2.2 GHz
 
 

Artificial Intelligence and Machine Learning

-- AI specifications --
-- AI hardware --
 
 

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.
Decode / Encode AVC Decode / Encode
Decode VC-1 Decode
Decode / Encode VP9 Decode / Encode
Decode / Encode h265 / HEVC (10 bit) Decode / Encode
Decode / Encode h264 Decode / Encode
Decode / Encode VP8 Decode / Encode
Decode / Encode h265 / HEVC (8 bit) Decode / Encode
Decode / Encode JPEG Decode / Encode
No AV1 Decode
 
 

Memory & PCIe

The processor supports a maximum memory capacity of 128.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 83.2 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
2 Memory channels 2
128.0 GB Max. Memory 128.0 GB
pci PCIe pci
Yes AES-NI Yes
Yes ECC Yes
83.2 GB/s Bandwidth 83.2 GB/s
DDR5-5200 Memory type DDR5-5200
 
 

Thermal Management

The processor has a thermal design power (TDP) of 170 W watts.
TDP indicates the cooling solution needed to effectively manage the processor's heat. It generally provides an approximate indication of the actual power consumption of the CPU itself.
The processor has a thermal design power (TDP) of 55 W watts.
None TDP up 75 W
95 °C Tjunction max 100 °C
230 W TDP (PL2) None
170 W TDP (PL1 / PBP) 55 W
 
 

Technical details

The AMD Ryzen 9 7900X is manufactured using a 5 nm process.
A smaller manufacturing process indicates a more contemporary and energy-efficient CPU.
In total, this processor boasts a generous 64.0 MB cache.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The AMD Ryzen 9 7945HX is manufactured using a 5 nm process.
Q4/2022 Release date Q1/2023
100-100000589WOF Part Number 100-000000870
12.0 MB L2-Cache 16.0 MB
AMD-V, SVM Virtualization AMD-V, SVM
SSE4a, SSE4.1, SSE4.2, FMA3, AVX2, AVX512 ISA extensions SSE4a, SSE4.1, SSE4.2, FMA3, AVX2, AVX512
Chiplet Chip design Chiplet
Raphael (Zen 4) Architecture Dragon Range (Zen 4)
5 nm Technology 5 nm
AM5 (LGA 1718) Socket FL1
Windows 10, Linux, Windows 11 Operating systems Windows 10, Linux, Windows 11
549 $ Release price --
Technical data sheet Documents Technical data sheet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
64.0 MB L3-Cache 64.0 MB
 
 

Benchmarks

Estimated results for PassMark CPU Mark

AMD Ryzen 9 7945HX
16C 32T @ 2.5 GHz
58842
58842
AMD Ryzen 9 7900X
12C 24T @ 4.7 GHz
52422
52422

Cinebench R23 (Multi-Core)

AMD Ryzen 9 7945HX
16C 32T @ 2.5 GHz
32788
32788
AMD Ryzen 9 7900X
12C 24T @ 4.7 GHz
29306
29306

Geekbench 5, 64bit (Multi-Core)

AMD Ryzen 9 7900X
12C 24T @ 4.7 GHz
21765
21765
AMD Ryzen 9 7945HX
16C 32T @ 2.5 GHz
19472
19472

Geekbench 6 (Multi-Core)

AMD Ryzen 9 7900X
12C 24T @ 4.7 GHz
18875
18875
AMD Ryzen 9 7945HX
16C 32T @ 2.5 GHz
16214
16214

Cinebench R20 (Multi-Core)

AMD Ryzen 9 7945HX
16C 32T @ 2.5 GHz
12914
12914
AMD Ryzen 9 7900X
12C 24T @ 4.7 GHz
11572
11572

Cinebench R15 (Multi-Core)

AMD Ryzen 9 7945HX
16C 32T @ 2.5 GHz
5597
5597
AMD Ryzen 9 7900X
12C 24T @ 4.7 GHz
4848
4848

Geekbench 6 (Single-Core)

AMD Ryzen 9 7900X
12C 24T @ 4.7 GHz
2920
2920
AMD Ryzen 9 7945HX
16C 32T @ 2.5 GHz
2734
2734

Geekbench 5, 64bit (Single-Core)

AMD Ryzen 9 7900X
12C 24T @ 4.7 GHz
2226
2226
AMD Ryzen 9 7945HX
16C 32T @ 2.5 GHz
2130
2130

Cinebench R23 (Single-Core)

AMD Ryzen 9 7900X
12C 24T @ 4.7 GHz
2034
2034
AMD Ryzen 9 7945HX
16C 32T @ 2.5 GHz
1955
1955

Cinebench R20 (Single-Core)

AMD Ryzen 9 7900X
12C 24T @ 4.7 GHz
781
781
AMD Ryzen 9 7945HX
16C 32T @ 2.5 GHz
758
758

Cinebench R15 (Single-Core)

AMD Ryzen 9 7900X
12C 24T @ 4.7 GHz
325
325
AMD Ryzen 9 7945HX
16C 32T @ 2.5 GHz
312
312