i9-13900T vs i9-12900KS

Place in the ranking	177	174
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	44.28
Market segment	Desktop processor	Desktop processor
Power efficiency	17.44	74.87
Architecture codename	Alder Lake-S (2022)	Raptor Lake-S (2023−2024)
Release date	5 April 2022 (2 years ago)	4 January 2023 (1 year ago)
Launch price (MSRP)	no data	$549

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core i9-12900KS and Core i9-13900T basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	16 (Hexadeca-Core)	24 (Tetracosa-Core)
Performance-cores	8	8
Efficient-cores	8	16
Threads	24	32
Base clock speed	3.4 GHz	1.1 GHz
Boost clock speed	5.3 GHz	5.3 GHz
L1 cache	80K (per core)	80K (per core)
L2 cache	1.25 MB (per core)	2 MB (per core)
L3 cache	30 MB (shared)	36 MB (shared)
Chip lithography	Intel 7 nm	Intel 7 nm
Die size	215 mm²	257 mm²
Maximum core temperature	90 °C	100 °C
Maximum case temperature (TCase)	72 °C	72 °C
64 bit support	+	+
Windows 11 compatibility	+	+
Unlocked multiplier	+	-

Compatibility

Information on Core i9-12900KS and Core i9-13900T compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	1	1
Socket	FCLGA1700	FCLGA1700
Power consumption (TDP)	150 Watt	35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-12900KS and Core i9-13900T. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	+	+
AVX	+	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	+	+
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	+
TSX	+	+
Idle States	+	+
Thermal Monitoring	+	+
SIPP	-	+
Turbo Boost Max 3.0	+	+
Deep Learning Boost	+	+

Security technologies

Core i9-12900KS and Core i9-13900T technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
Secure Key	+	+
OS Guard	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-12900KS and Core i9-13900T are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-12900KS and Core i9-13900T. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR5-4800, DDR4-3200	DDR5-5600, DDR4-3200
Maximum memory size	128 GB	192 GB
Max memory channels	2	2
Maximum memory bandwidth	76.8 GB/s	89.6 GB/s
ECC memory support	+	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel UHD Graphics 770	Intel UHD Graphics 770
Quick Sync Video	+	+
Clear Video HD	+	+
Graphics max frequency	1.55 GHz	1.65 GHz
Execution Units	32	32

Graphics interfaces

Available interfaces and connections of Core i9-12900KS and Core i9-13900T integrated GPUs.

Number of displays supported

Graphics image quality

Maximum display resolutions supported by Core i9-12900KS and Core i9-13900T integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	4096 x 2160 @ 60Hz	4096 x 2160 @ 60Hz
Max resolution over eDP	5120 x 3200 @ 120Hz	5120 x 3200 @ 120Hz
Max resolution over DisplayPort	7680 x 4320 @ 60Hz	7680 x 4320 @ 60Hz

Graphics API support

APIs supported by Core i9-12900KS and Core i9-13900T integrated GPUs, sometimes API versions are included.

DirectX	12	12
OpenGL	4.5	4.5

Peripherals

Specifications and connection of peripherals supported by Core i9-12900KS and Core i9-13900T.

PCIe version	5.0 and 4.0	5.0 and 4.0
PCI Express lanes	20	20

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

i9-12900KS 27.65

i9-13900T 27.69
+0.1%

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

i9-12900KS 43925

i9-13900T 43986
+0.1%

Gaming performance

Pros & cons summary

Performance score	27.65	27.69
Recency	5 April 2022	4 January 2023
Physical cores	16	24
Threads	24	32
Power consumption (TDP)	150 Watt	35 Watt

i9-13900T has a 0.1% higher aggregate performance score, an age advantage of 8 months, 50% more physical cores and 33.3% more threads, and 328.6% lower power consumption.

Given the minimal performance differences, no clear winner can be declared between Core i9-12900KS and Core i9-13900T.

Should you still have questions on choice between Core i9-12900KS and Core i9-13900T, ask them in Comments section, and we shall answer.