AMD Ryzen 9 7900 vs Intel Core i9-9900KF

Last updated: 2024-02-02

CPU comparison with benchmarks


AMD Ryzen 9 7900		Intel Core i9-9900KF
CPU comparison AMD Ryzen 9 7900 or Intel Core i9-9900KF - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results. The AMD Ryzen 9 7900 has 12 cores with 24 threads and clocks with a maximum frequency of 5.40 GHz. Up to 128 GB of memory is supported in 2 memory channels. The AMD Ryzen 9 7900 was released in Q1/2023. The Intel Core i9-9900KF has 8 cores with 16 threads and clocks with a maximum frequency of 5.00 GHz. The CPU supports up to 128 GB of memory in 2 memory channels. The Intel Core i9-9900KF was released in Q1/2019.

AMD Ryzen 9 (35)	Family	Intel Core i9 (78)
AMD Ryzen 7000 (14)	CPU group	Intel Core i 9000 (34)
6	Generation	9
Raphael (Zen 4)	Architecture	Coffee Lake S Refresh
Desktop / Server	Segment	Desktop / Server
AMD Ryzen 9 5900	Predecessor	--
--	Successor	Intel Core i9-10900KF

CPU Cores and Base Frequency The AMD Ryzen 9 7900 has 12 CPU cores and can calculate 24 threads in parallel. The clock frequency of the AMD Ryzen 9 7900 is 3.70 GHz (5.40 GHz) while the Intel Core i9-9900KF has 8 CPU cores and 16 threads can calculate simultaneously. The clock frequency of the Intel Core i9-9900KF is at 3.60 GHz (5.00 GHz).
AMD Ryzen 9 7900	Characteristic	Intel Core i9-9900KF
12	Cores	8
24	Threads	16
normal	Core architecture	normal
Yes	Hyperthreading	Yes
Yes	Overclocking ?	Yes
3.70 GHz	Frequency	3.60 GHz
5.40 GHz	Turbo Frequency (1 Core)	5.00 GHz
4.70 GHz	Turbo Frequency (All Cores)	4.70 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 7900	Characteristic	Intel Core i9-9900KF
--	AI hardware	--
--	AI specifications	--

Internal Graphics The AMD Ryzen 9 7900 or Intel Core i9-9900KF has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
AMD Radeon Graphics (Raphael)	GPU	no iGPU
0.40 GHz	GPU frequency	--
2.20 GHz	GPU (Turbo)	--
9	GPU Generation	--
5 nm	Technology
3	Max. displays
2	Compute units	--
128	Shader	--
No	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 Graphics (Raphael)	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 The AMD Ryzen 9 7900 can use up to 128 GB of memory in 2 memory channels. The maximum memory bandwidth is 83.2 GB/s. The Intel Core i9-9900KF supports up to 128 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 42.7 GB/s.
AMD Ryzen 9 7900	Characteristic	Intel Core i9-9900KF
DDR5-5200	Memory	DDR4-2666
128 GB	Max. Memory	128 GB
2 (Dual Channel)	Memory channels	2 (Dual Channel)
83.2 GB/s	Max. Bandwidth	42.7 GB/s
Yes	ECC	No
12.00 MB	L2 Cache	--
64.00 MB	L3 Cache	16.00 MB
5.0	PCIe version	3.0
24	PCIe lanes	16
94.5 GB/s	PCIe Bandwidth	15.8 GB/s
Thermal Management The thermal design power (TDP for short) of the AMD Ryzen 9 7900 is 65 W, while the Intel Core i9-9900KF has a TDP of 95 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.
AMD Ryzen 9 7900	Characteristic	Intel Core i9-9900KF
65 W	TDP (PL1 / PBP)	95 W
88 W	TDP (PL2)	119 W @ 28 s
170 W	TDP up	--
--	TDP down	--
95 °C	Tjunction max.	100 °C
Technical details The AMD Ryzen 9 7900 is manufactured in 5 nm and has 76.00 MB cache. The Intel Core i9-9900KF is manufactured in 14 nm and has a 16.00 MB cache.
AMD Ryzen 9 7900	Characteristic	Intel Core i9-9900KF
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	SSE4.1, SSE4.2, AVX2
AM5 (LGA 1718)	Socket	LGA 1151-2
AMD-V, SVM	Virtualization	VT-x, VT-x EPT, VT-d
Yes	AES-NI	Yes
Windows 10, Windows 11, Linux	Operating systems	Windows 10, Windows 11, Linux
Q1/2023	Release date	Q1/2019
--	Release price	600 $

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AMD Ryzen 9 7900 12C 24T @ 3.70 GHz (5.40 GHz) buy now on Amazon and save! Intel Core i9-9900KF 8C 16T @ 3.60 GHz (5.00 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 7900 (100%)

Intel Core i9-9900KF (65%)

⌀ Multi core performance in 7 CPU benchmarks

AMD Ryzen 9 7900 (100%)

Intel Core i9-9900KF (43%)

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 7900 12C 24T @ 5.40 GHz	116 (100%)
	Intel Core i9-9900KF 8C 16T @ 5.00 GHz	77 (66%)

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 7900 12C 24T @ 5.40 GHz	1632 (100%)
	Intel Core i9-9900KF 8C 16T @ 5.00 GHz	640 (39%)

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 7900 12C 24T @ 5.40 GHz	1964 (100%)
	Intel Core i9-9900KF 8C 16T @ 5.00 GHz	1294 (66%)

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 7900 12C 24T @ 4.70 GHz	28905 (100%)
	Intel Core i9-9900KF 8C 16T @ 4.70 GHz	12812 (44%)

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 7900 12C 24T @ 5.40 GHz	2206 (100%)
	Intel Core i9-9900KF 8C 16T @ 5.00 GHz	1342 (61%)

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 7900 12C 24T @ 4.70 GHz	21140 (100%)
	Intel Core i9-9900KF 8C 16T @ 4.70 GHz	8779 (42%)

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 7900 12C 24T @ 5.40 GHz	2798 (100%)
	Intel Core i9-9900KF 8C 16T @ 5.00 GHz	1650 (59%)

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 7900 12C 24T @ 4.70 GHz	16832 (100%)
	Intel Core i9-9900KF 8C 16T @ 4.70 GHz	8182 (49%)

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 7900 12C 24T @ 5.40 GHz	764 (100%)
	Intel Core i9-9900KF 8C 16T @ 5.00 GHz	518 (68%)

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 7900 12C 24T @ 4.70 GHz	11088 (100%)
	Intel Core i9-9900KF 8C 16T @ 4.70 GHz	4995 (45%)

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 7900 12C 24T @ 4.70 GHz	49250 (100%)
	Intel Core i9-9900KF 8C 16T @ 4.70 GHz	18702 (38%)

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 7900 12C 24T @ 5.40 GHz	314 (100%)
	Intel Core i9-9900KF 8C 16T @ 5.00 GHz	219 (70%)

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 7900 12C 24T @ 4.70 GHz	4796 (100%)
	Intel Core i9-9900KF 8C 16T @ 4.70 GHz	2245 (47%)

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 7900 AMD Radeon Graphics (Raphael) @ 2.20 GHz	563 (100%)
	Intel Core i9-9900KF @ 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 7900 12C 24T @ 4.70 GHz	0 (0%)
	Intel Core i9-9900KF 8C 16T @ 4.70 GHz	171 (100%)

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 7900 12C 24T @ 4.70 GHz	0 (0%)
	Intel Core i9-9900KF 8C 16T @ 4.70 GHz	165.4 (100%)

CPU-Z Benchmark 17 (Single-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 7900 12C 24T @ 4.70 GHz	0 (0%)
	Intel Core i9-9900KF 8C 16T @ 4.70 GHz	557 (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 7900 12C 24T @ 3.70 GHz	0 (0%)
	Intel Core i9-9900KF 8C 16T @ 3.60 GHz	5564 (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 7900 28,905 CB R23 MC @ 90 W	321 (100%)
	Intel Core i9-9900KF 3.60 GHz	0 (0%)

Devices using this processor
AMD Ryzen 9 7900	Intel Core i9-9900KF
Unknown	Unknown

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