Intel Core i9-9900KS vs AMD Ryzen 7 7800X3D vs Intel Core i9-9900K

Intel Core i9-9900KS

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The Intel Core i9-9900KS is a high end desktop processor that includes 8 cores based on the Coffee Lake architecture. It is the fastest Coffee Lake CPU in 2019 and compared to the similar named i9-9900K, the KS offers an all core Turbo of 5 GHz. All cores can clock between 4 GHz and 5 GHz and thanks to Hyperthreading / SMT 16 threads can be executed in parallel. The CPU is still manufactured in the mature 14 nm process (14nm++). Thanks to the open multiplicator, the CPU is rather easy to overclock (if a Z390 based mainboard is used).

With good cooling, the i9-9900KS can be around 10% faster than the older Intel Core i9-9900K (thanks to the 5 GHz all core Turbo). Compare to the old Core i7-8700K, the 9900KS is even 45% faster. Especially for gaming, the 9900KS is currently the fastest option available. The fast Ryzen and Threadripper CPUs from AMD however offer a better multithreaded performance.

The integrated GPU is called Intel UHD Graphics 630 and clocks with up to 1.2 GHz. It is not suited for demanding 3D games and located in the low end.

The TDP is raised to 127 Watt for the additional performance, therefore a good CPU cooler is needed. When overclocking the CPU, more than 200 Watt can be reached unter load.

AMD Ryzen 7 7800X3D

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The AMD Ryzen 7 7800X3D is a high-end desktop processor from the Raphael series with 8 Zen 4 cores and SMT (Simultaneous Multithreading), allowing it to handle up to 16 threads simultaneously. After its announcement in January 2023 at CES in Las Vegas, it was launched in April 2023. Following the launch of the two top models, the AMD Ryzen 9 7900X3D and the AMD Ryzen 9 7950X3D, the third model was introduced, which offers significantly more gaming performance with the 3D V-Cache.

The CPU cores have a base clock of 4.2 GHz and can be boosted up to 5 GHz (single-core turbo). The AMD Ryzen 7 7800X3D features a CCD with 8 cores, which includes the fast 3D V-Cache. This differs significantly from the two Ryzen 9 models, as they have two CCDs, but only one of them can utilize the 3D V-Cache.

The performance of the AMD Ryzen 7 7800X3D is consistently good, although its multi-threaded performance suffers a bit due to the eight native compute cores. However, the real strength of the AMD Ryzen 7 7800X3D lies in gaming performance, where it excels. In tests, we see consistently high gaming performance, even surpassing that of an Intel Core i9-13900K.

In terms of power consumption, the AMD Ryzen 7 7800X3D aligns with the other two models featuring 3D V-Cache, making the 8-core processor extremely power-efficient. In numbers, this means that the AMD Ryzen 7 7800X3D is specified with a TDP of up to 120 watts. The PPT (Package Power Tracking) is also rated up to 162 watts. For comparison, an AMD Ryzen 9 7950X is specified with 170 watts (TDP) or 230 watts (PPT).

Model	Intel Core i9-9900KS	AMD Ryzen 7 7800X3D	Intel Core i9-9900K
Codename	Coffee Lake-R	Raphael (Zen4)	Coffee Lake-R
Series	Intel Coffee Lake	AMD Raphael (Zen 4, Ryzen 7000)	Intel Coffee Lake
Series: Coffee Lake Coffee Lake-R	Intel Core i9-9900KS « 4 - 5 GHz 8 / 16  16 MB L3 Intel Core i9-9900K 3.6 - 5 GHz 8 / 16  16 MB L3 Intel Core i7-9700K 3.6 - 4.9 GHz 8 / 8  12 MB L3 Intel Core i7-9700 3 - 4.7 GHz 8 / 8  12 MB L3 Intel Core i5-9600K 3.7 - 4.6 GHz 6 / 6  9 MB L3 Intel Core i9-9900T 2.1 - 4.4 GHz 8 / 16  16 MB L3 Intel Core i5-9400F 2.9 - 4.1 GHz 6 / 6  9 MB L3 Intel Core i3-9100F 3.6 - 4.2 GHz 4 / 4  6 MB L3	AMD Ryzen 9 7950X3D 4.2 - 5.7 GHz 16 / 32  128 MB L3 AMD Ryzen 9 7900X 4.7 - 5.6 GHz 12 / 24  64 MB L3 AMD Ryzen 9 7900 3.7 - 5.4 GHz 12 / 24  64 MB L3 AMD Ryzen 7 7700X 4.5 - 5.4 GHz 8 / 16  32 MB L3 AMD Ryzen 7 7700 3.8 - 5.3 GHz 8 / 16  32 MB L3 AMD Ryzen 7 7800X3D « 4.2 - 5 GHz 8 / 16  96 MB L3 AMD Ryzen 5 7600X 4.7 - 5.3 GHz 6 / 12  32 MB L3 AMD Ryzen 5 7600 3.8 - 5.1 GHz 6 / 12  32 MB L3	Intel Core i9-9900KS 4 - 5 GHz 8 / 16  16 MB L3 Intel Core i9-9900K « 3.6 - 5 GHz 8 / 16  16 MB L3 Intel Core i7-9700K 3.6 - 4.9 GHz 8 / 8  12 MB L3 Intel Core i7-9700 3 - 4.7 GHz 8 / 8  12 MB L3 Intel Core i5-9600K 3.7 - 4.6 GHz 6 / 6  9 MB L3 Intel Core i9-9900T 2.1 - 4.4 GHz 8 / 16  16 MB L3 Intel Core i5-9400F 2.9 - 4.1 GHz 6 / 6  9 MB L3 Intel Core i3-9100F 3.6 - 4.2 GHz 4 / 4  6 MB L3
Clock	4000 - 5000 MHz	4200 - 5000 MHz	3600 - 5000 MHz
L1 Cache	512 KB	512 KB	512 KB
L2 Cache	2 MB	8 MB	2 MB
L3 Cache	16 MB	96 MB	16 MB
Cores / Threads	8 / 16	8 / 16	8 / 16
TDP	127 Watt	120 Watt	95 Watt
Technology	14 nm	5 nm	14++ nm
Die Size	178 mm2	193 mm2	178 mm2
max. Temp.	100 °C	89 °C	100 °C
Socket	FCLGA1151	AM5 (LGA 1718)	FCLGA1151
Features	Dual-Channel DDR4-2666 Memory Controller, HyperThreading, AVX, AVX2, AES-NI, TSX-NI, Quick Sync, Virtualization, vPro	MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A, x86-64, AMD-V, AES, AVX, AVX2, AVX512, BMI1, BMI2, F16C, FMA3, AMD64, EVP, AMD-V, SMAP, SMEP, SMT SHA, XFR2, Precision Boost 2	Dual-Channel DDR4-2666 Memory Controller, HyperThreading, AVX, AVX2, AES-NI, TSX-NI, Quick Sync, Virtualization, vPro
iGPU	Intel UHD Graphics 630 (350 - 1200 MHz)	AMD Radeon Graphics (Ryzen 7000) (400 - 2200 MHz)	Intel UHD Graphics 630 (350 - 1200 MHz)
Architecture	x86	x86	x86
	$513 U.S.	$449 U.S.	$488 U.S.
Announced
Manufacturer	www.intel.de		www.intel.de
TDP Turbo PL2		162 Watt
Transistors		6570 Million
Voltage		1.1 - 1.2 V

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