AMD Ryzen 9 7900X3D vs AMD Ryzen 7 7800X3D

CPU comparison with benchmarks

AMD Ryzen 9 7900X3D		AMD Ryzen 7 7800X3D
CPU comparison In this CPU comparison, we compare the AMD Ryzen 9 7900X3D and the AMD Ryzen 7 7800X3D and use benchmarks to check which processor is faster. We compare the AMD Ryzen 9 7900X3D 12 core processor released in Q1/2023 with the AMD Ryzen 7 7800X3D which has 8 CPU cores and was introduced in Q1/2023.
AMD Ryzen 9 (35)	Family	AMD Ryzen 7 (67)
AMD Ryzen 7000 (14)	CPU group	AMD Ryzen 7000 (14)
6	Generation	6
Raphael (Zen 4)	Architecture	Raphael (Zen 4)
Desktop / Server	Segment	Desktop / Server
--	Predecessor	AMD Ryzen 7 5800X3D
--	Successor	--
CPU Cores and Base Frequency The AMD Ryzen 9 7900X3D is a 12 core processor with a clock frequency of 4.40 GHz (5.60 GHz). The processor can compute 24 threads at the same time. The AMD Ryzen 7 7800X3D clocks with 4.20 GHz (5.00 GHz), has 8 CPU cores and can calculate 16 threads in parallel.
AMD Ryzen 9 7900X3D	Characteristic	AMD Ryzen 7 7800X3D
12	Cores	8
24	Threads	16
normal	Core architecture	normal
Yes	Hyperthreading	Yes
No	Overclocking ?	No
4.40 GHz	Frequency	4.20 GHz
5.60 GHz	Turbo Frequency (1 Core)	5.00 GHz
5.20 GHz	Turbo Frequency (All Cores)	4.60 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 7900X3D	Characteristic	AMD Ryzen 7 7800X3D
--	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 Graphics (Raphael)	GPU	AMD Radeon Graphics (Raphael)
0.40 GHz	GPU frequency	0.40 GHz
2.20 GHz	GPU (Turbo)	2.20 GHz
9	GPU Generation	9
5 nm	Technology	5 nm
3	Max. displays	3
2	Compute units	2
128	Shader	128
No	Hardware Raytracing	No
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 Graphics (Raphael)	GPU	AMD Radeon Graphics (Raphael)
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
No	Codec AV1	No
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 7900X3D, while the AMD Ryzen 7 7800X3D supports a maximum of 128 GB of memory with a maximum memory bandwidth of 83.2 GB/s enabled.
AMD Ryzen 9 7900X3D	Characteristic	AMD Ryzen 7 7800X3D
DDR5-5200	Memory	DDR5-5200
128 GB	Max. Memory	128 GB
2 (Dual Channel)	Memory channels	2 (Dual Channel)
83.2 GB/s	Max. Bandwidth	83.2 GB/s
Yes	ECC	Yes
12.00 MB	L2 Cache	8.00 MB
128.00 MB	L3 Cache	96.00 MB
5.0	PCIe version	5.0
24	PCIe lanes	24
94.5 GB/s	PCIe Bandwidth	94.5 GB/s
Thermal Management The AMD Ryzen 9 7900X3D has a TDP of 120 W. The TDP of the AMD Ryzen 7 7800X3D is 120 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.
AMD Ryzen 9 7900X3D	Characteristic	AMD Ryzen 7 7800X3D
120 W	TDP (PL1 / PBP)	120 W
162 W	TDP (PL2)	162 W
--	TDP up	--
--	TDP down	--
89 °C	Tjunction max.	89 °C
Technical details The AMD Ryzen 9 7900X3D has 140.00 MB cache and is manufactured in 5 nm. The cache of AMD Ryzen 7 7800X3D is at 104.00 MB. The processor is manufactured in 5 nm.
AMD Ryzen 9 7900X3D	Characteristic	AMD Ryzen 7 7800X3D
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
AM5 (LGA 1718)	Socket	AM5 (LGA 1718)
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	Q1/2023
--	Release price	--
show more data		show more data
AMD Ryzen 9 7900X3D 12C 24T @ 4.40 GHz (5.60 GHz) buy now on Amazon and save! AMD Ryzen 7 7800X3D 8C 16T @ 4.20 GHz (5.00 GHz) buy now on Amazon and save!

Devices using this processor
AMD Ryzen 9 7900X3D	AMD Ryzen 7 7800X3D
Unknown	Unknown

Comparison of the two processors

In this comparison we look at the difference between the AMD Ryzen 7 7800X3D and the AMD Ryzen 9 7900X3D. Both processors are manufactured with a structure width of 5 nanometers and are based on the Raphael (Zen 4) architecture. They came onto the market in the first quarter of 2023 and can be operated on any motherboard with the AM5 socket.

The AMD Ryzen 7 7800X3D has 8 processor cores and supports hyperthreading, which means it has up to 16 computing threads available. The cores clock at 4.20 gigahertz and in turbo mode the maximum clock speed is 5.00 gigahertz. The AMD Ryzen 9 7900X3D is made up of 12 processor cores and also supports hyperthreading, which means it has up to 24 computing threads available. The clock frequency of the 12 cores is 4.40 gigahertz, but it can be increased to up to 5.60 gigahertz in turbo mode. Both processors cannot be overclocked.

The processors are both equipped with the identical internal graphics unit. AMD Radeon Graphics (Raphael) is used here. This iGPU is equipped with 2 execution units and 128 shaders. The maximum clock frequency of the graphics unit is 2.20 gigahertz and this achieves an FP32 computing power of 563 gigaflops with single precision. It can use up to 8 gigabytes of the system's built-in RAM and can supply up to 3 monitors with one image.

Both processors have 2 memory channels and can be operated with up to 128 DDR5-5200 RAM. RAM with automatic error correction (ECC RAM) is also supported.

Both the AMD Ryzen 7 7800X3D and the AMD Ryzen 9 7900X3D are equipped with 24 PCIe version 5 cables. The AMD Ryzen 7 7800X3D has an 8.00 megabyte level 2 cache and a 96.00 megabyte level 3 cache. The AMD Ryzen 9 7900X3D, on the other hand, has a larger Level 2 cache (12.00 megabytes) and a larger Level 3 cache (128.00 megabytes).

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