AMD Ryzen 9 7945HX vs AMD Ryzen 7 1800X

Last updated: 2024-03-15

CPU comparison with benchmarks


AMD Ryzen 9 7945HX		AMD Ryzen 7 1800X
CPU comparison In this CPU comparison, we compare the AMD Ryzen 9 7945HX and the AMD Ryzen 7 1800X and use benchmarks to check which processor is faster. We compare the AMD Ryzen 9 7945HX 16 core processor released in Q1/2023 with the AMD Ryzen 7 1800X which has 8 CPU cores and was introduced in Q1/2017.

AMD Ryzen 9 (40)	Family	AMD Ryzen 7 (70)
AMD Ryzen 7045 (6)	CPU group	AMD Ryzen 1000 (15)
6	Generation	1
Dragon Range (Zen 4)	Architecture	Summit Ridge (Zen)
Mobile	Segment	Desktop / Server
--	Predecessor	--
--	Successor	--

CPU Cores and Base Frequency The AMD Ryzen 9 7945HX is a 16 core processor with a clock frequency of 2.50 GHz (5.40 GHz). The processor can compute 32 threads at the same time. The AMD Ryzen 7 1800X clocks with 3.60 GHz (4.00 GHz), has 8 CPU cores and can calculate 16 threads in parallel.
AMD Ryzen 9 7945HX	Characteristic	AMD Ryzen 7 1800X
16	Cores	8
32	Threads	16
normal	Core architecture	normal
Yes	Hyperthreading	Yes
Yes	Overclocking ?	Yes
2.50 GHz	Frequency	3.60 GHz
5.40 GHz	Turbo Frequency (1 Core)	4.00 GHz
--	Turbo Frequency (All Cores)	3.80 GHz

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 7945HX	Characteristic	AMD Ryzen 7 1800X
--	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	no iGPU
0.40 GHz	GPU frequency	--
2.20 GHz	GPU (Turbo)	--
9	GPU Generation	--
6 nm	Technology
3	Max. displays
2	Compute units	--
128	Shader	--
Yes	Hardware Raytracing	No
No	Frame Generation	No
8 GB	Max. GPU Memory	--
12	DirectX Version	--

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

Memory & PCIe Up to 128 GB of memory in a maximum of 2 memory channels is supported by the AMD Ryzen 9 7945HX, while the AMD Ryzen 7 1800X supports a maximum of 64 GB of memory with a maximum memory bandwidth of 42.7 GB/s enabled.
AMD Ryzen 9 7945HX	Characteristic	AMD Ryzen 7 1800X
DDR5-5200	Memory	DDR4-2666
128 GB	Max. Memory	64 GB
2 (Dual Channel)	Memory channels	2 (Dual Channel)
83.2 GB/s	Max. Bandwidth	42.7 GB/s
Yes	ECC	Yes
16.00 MB	L2 Cache	--
64.00 MB	L3 Cache	16.00 MB
5.0	PCIe version	3.0
28	PCIe lanes	20
110.3 GB/s	PCIe Bandwidth	19.7 GB/s
Thermal Management The AMD Ryzen 9 7945HX has a TDP of 55 W. The TDP of the AMD Ryzen 7 1800X is 95 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.
AMD Ryzen 9 7945HX	Characteristic	AMD Ryzen 7 1800X
55 W	TDP (PL1 / PBP)	95 W
--	TDP (PL2)	--
75 W	TDP up	--
--	TDP down	--
100 °C	Tjunction max.	95 °C
Technical details The AMD Ryzen 9 7945HX has 80.00 MB cache and is manufactured in 5 nm. The cache of AMD Ryzen 7 1800X is at 16.00 MB. The processor is manufactured in 14 nm.
AMD Ryzen 9 7945HX	Characteristic	AMD Ryzen 7 1800X
5 nm	Technology	14 nm
Chiplet	Chip design	Monolithic
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, AVX2, FMA3
FL1	Socket	AM4 (PGA 1331)
AMD-V, SVM	Virtualization	AMD-V, SVM
Yes	AES-NI	Yes
Windows 10, Windows 11, Linux	Operating systems	Windows 10, Linux
Q1/2023	Release date	Q1/2017
--	Release price	450 $

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AMD Ryzen 9 7945HX 16C 32T @ 2.50 GHz (5.40 GHz) buy now on Amazon and save! AMD Ryzen 7 1800X 8C 16T @ 3.60 GHz (4.00 GHz) buy now on Amazon and save!

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Average performance in benchmarks

⌀ Single core performance in 6 CPU benchmarks

AMD Ryzen 9 7945HX (100%)

AMD Ryzen 7 1800X (49%)

⌀ Multi core performance in 8 CPU benchmarks

AMD Ryzen 9 7945HX (92%)

AMD Ryzen 7 1800X (40%)

Cinebench 2024 (Single-Core)

The Cinebench 2024 benchmark is based on the Redshift rendering engine, which is also used in Maxon's 3D program Cinema 4D. The benchmark runs are each 10 minutes long to test whether the processor is limited by its heat generation.


	AMD Ryzen 9 7945HX 16C 32T @ 5.40 GHz	114 (100%)
	AMD Ryzen 7 1800X 8C 16T @ 4.00 GHz	60 (53%)

Cinebench 2024 (Multi-Core)

The Multi-Core test of the Cinebench 2024 benchmark uses all cpu cores to render using the Redshift rendering engine, which is also used in Maxons Cinema 4D. The benchmark run is 10 minutes long to test whether the processor is limited by its heat generation.


	AMD Ryzen 9 7945HX 16C 32T @ 5.40 GHz	1669 (100%)
	AMD Ryzen 7 1800X 8C 16T @ 4.00 GHz	545 (33%)

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 7945HX 16C 32T @ 5.40 GHz	1955 (100%)
	AMD Ryzen 7 1800X 8C 16T @ 4.00 GHz	969 (50%)

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 7945HX 16C 32T @ 2.50 GHz	32788 (100%)
	AMD Ryzen 7 1800X 8C 16T @ 3.80 GHz	9314 (28%)

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 7945HX 16C 32T @ 5.40 GHz	2130 (100%)
	AMD Ryzen 7 1800X 8C 16T @ 4.00 GHz	932 (44%)

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 7945HX 16C 32T @ 2.50 GHz	19472 (100%)
	AMD Ryzen 7 1800X 8C 16T @ 3.80 GHz	6344 (33%)

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 7945HX 16C 32T @ 5.40 GHz	2774 (100%)
	AMD Ryzen 7 1800X 8C 16T @ 4.00 GHz	1167 (42%)

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 7945HX 16C 32T @ 2.50 GHz	16214 (100%)
	AMD Ryzen 7 1800X 8C 16T @ 3.80 GHz	5932 (37%)

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 7945HX 16C 32T @ 5.40 GHz	758 (100%)
	AMD Ryzen 7 1800X 8C 16T @ 4.00 GHz	381 (50%)

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 7945HX 16C 32T @ 2.50 GHz	12914 (100%)
	AMD Ryzen 7 1800X 8C 16T @ 3.80 GHz	3587 (28%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.


	AMD Ryzen 9 7945HX 16C 32T @ 2.50 GHz	58842 (100%)
	AMD Ryzen 7 1800X 8C 16T @ 3.80 GHz	16325 (28%)

Blender 2.81 (bmw27)

Blender is a free 3D graphics software for rendering (creating) 3D bodies, which can also be textured and animated in the software. The Blender benchmark creates predefined scenes and measures the time (s) required for the entire scene. The shorter the time required, the better. We selected bmw27 as the benchmark scene.


	AMD Ryzen 9 7945HX 16C 32T @ 2.50 GHz	94 (39%)
	AMD Ryzen 7 1800X 8C 16T @ 3.80 GHz	241.2 (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 7945HX 16C 32T @ 5.40 GHz	312 (100%)
	AMD Ryzen 7 1800X 8C 16T @ 4.00 GHz	163 (52%)

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 7945HX 16C 32T @ 2.50 GHz	5597 (100%)
	AMD Ryzen 7 1800X 8C 16T @ 3.80 GHz	1617 (29%)

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 7945HX AMD Radeon 610M @ 2.20 GHz	443 (100%)
	AMD Ryzen 7 1800X @ 0.00 GHz	0 (0%)

Blender 3.1 Benchmark

In the Blender Benchmark 3.1, the scenes "monster", "junkshop" and "classroom" are rendered and the time required by the system is measured. In our benchmark we test the CPU and not the graphics card. Blender 3.1 was presented as a standalone version in March 2022.


	AMD Ryzen 9 7945HX 16C 32T @ 2.50 GHz	0 (0%)
	AMD Ryzen 7 1800X 8C 16T @ 3.80 GHz	141 (100%)

CPU-Z Benchmark 17 (Multi-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.


	AMD Ryzen 9 7945HX 16C 32T @ 2.50 GHz	0 (0%)
	AMD Ryzen 7 1800X 8C 16T @ 3.60 GHz	4529 (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 7945HX 32,788 CB R23 MC @ 134 W	245 (100%)
	AMD Ryzen 7 1800X 3.60 GHz	0 (0%)

Devices using this processor
AMD Ryzen 9 7945HX	AMD Ryzen 7 1800X
Unknown	Unknown

News and articles for the AMD Ryzen 9 7945HX and the AMD Ryzen 7 1800X

The evolution of AMD Ryzen processors

Posted by Stefan on 2022-09-06

The AMD Ryzen processors are designed for the mid to high-end range and are grouped into the Ryzen 3, Ryzen 5, Ryzen 7 and Ryzen 9 classes. AMD follows the market leader Intel, which groups its Core i series (Intel Core i3, Core i5, Core i7 and Core i9) identically.

The AMD Ryzen processors were first introduced by AMD in Q1 2017. They are the successor to the not particularly successful AMD Bulldozer processors. The latter were manufactured using an outdated manufacturing process and could not keep up with the competing products from Intel. AMD lost a large portion of its desktop processor market share during this period.

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