AMD Ryzen 7 7840U vs Intel Core i9-12900

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CPU comparison with benchmarks


AMD Ryzen 7 7840U CPU1 vs CPU2 Intel Core i9-12900
AMD Ryzen 7 7840U Intel Core i9-12900

CPU comparison

AMD Ryzen 7 7840U or Intel Core i9-12900 - 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 7 7840U has 8 cores with 16 threads and clocks with a maximum frequency of 5.10 GHz. Up to 256 GB of memory is supported in 2 memory channels. The AMD Ryzen 7 7840U was released in Q2/2023.

The Intel Core i9-12900 has 16 cores with 24 threads and clocks with a maximum frequency of 5.10 GHz. The CPU supports up to 128 GB of memory in 2 memory channels. The Intel Core i9-12900 was released in Q1/2022.
AMD Ryzen 7 (67) Family Intel Core i9 (78)
AMD Ryzen 7040 (21) CPU group Intel Core i 12000 (34)
6 Generation 12
Phoenix (Zen 4) Architecture Alder Lake S
Mobile Segment Desktop / Server
-- Predecessor Intel Core i9-11900
AMD Ryzen 7 8840U Successor Intel Core i9-13900

CPU Cores and Base Frequency

The AMD Ryzen 7 7840U is a 8 core processor with a clock frequency of 3.30 GHz (5.10 GHz). The Intel Core i9-12900 has 16 CPU cores with a clock frequency of 2.40 GHz (5.10 GHz).

AMD Ryzen 7 7840U Characteristic Intel Core i9-12900
8 Cores 16
16 Threads 24
normal Core architecture hybrid (big.LITTLE)
Yes Hyperthreading Yes
No Overclocking ? No
3.30 GHz (5.10 GHz)
8x Zen 4
A-Core 2.40 GHz (5.10 GHz)
8x Golden Cove
-- B-Core 1.80 GHz (3.80 GHz)
8x Gracemont

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 7 7840U Characteristic Intel Core i9-12900
AMD Ryzen AI AI hardware --
AMD dedicated AI XDNA Technology AI specifications --

Internal Graphics

The integrated graphics unit of a processor is not only responsible for the pure image output on the system, but can also significantly increase the efficiency of the system with the support of modern video codecs.

AMD Radeon 780M GPU Intel UHD Graphics 770
0.80 GHz GPU frequency 0.30 GHz
2.70 GHz GPU (Turbo) 1.55 GHz
3 GPU Generation 11
4 nm Technology 10 nm
4 Max. displays 3
12 Compute units 32
768 Shader 256
Yes Hardware Raytracing No
AMD FSR Frame Generation No
32 GB Max. GPU Memory 64 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 780M GPU Intel UHD Graphics 770
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 Codec VP9 Decode / Encode
Decode Codec VP8 Decode / Encode
Decode / Encode Codec AV1 Decode
Decode Codec AVC Decode / Encode
Decode Codec VC-1 Decode
Decode / Encode Codec JPEG Decode / Encode

Memory & PCIe

The AMD Ryzen 7 7840U supports a maximum of 256 GB of memory in 2 memory channels. The Intel Core i9-12900 can connect up to 128 GB of memory in 2 memory channels.

AMD Ryzen 7 7840U Characteristic Intel Core i9-12900
DDR5-4800, DDR5-5600, LPDDR5-6400, LPDDR5X-7500 Memory DDR5-4800, DDR4-3200
256 GB Max. Memory 128 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
120.0 GB/s Max. Bandwidth 76.8 GB/s
Yes ECC Yes
8.00 MB L2 Cache 14.00 MB
16.00 MB L3 Cache 30.00 MB
4.0 PCIe version 5.0
20 PCIe lanes 20
39.4 GB/s PCIe Bandwidth 78.8 GB/s

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The AMD Ryzen 7 7840U has a TDP of 28 W, that of the Intel Core i9-12900 is 65 W.

AMD Ryzen 7 7840U Characteristic Intel Core i9-12900
28 W TDP (PL1 / PBP) 65 W
-- TDP (PL2) 202 W
30 W TDP up --
15 W TDP down --
100 °C Tjunction max. 100 °C

Technical details

The AMD Ryzen 7 7840U has a 24.00 MB cache, while the Intel Core i9-12900 cache has a total of 44.00 MB.

AMD Ryzen 7 7840U Characteristic Intel Core i9-12900
4 nm Technology 10 nm
Monolithic 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, AVX2+
FP8 Socket LGA 1700
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
Q2/2023 Release date Q1/2022
-- Release price 489 $
show more data show more data


Rate these processors

Here you can rate the AMD Ryzen 7 7840U to help other visitors make their purchasing decisions. The average rating is 4.8 stars (26 ratings). Rate now:
Here you can rate the Intel Core i9-12900 to help other visitors make their purchasing decisions. The average rating is 1.0 stars (1 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 3 CPU benchmarks
AMD Ryzen 7 7840U (92%)
Intel Core i9-12900 (100%)
⌀ Multi core performance in 4 CPU benchmarks
AMD Ryzen 7 7840U (63%)
Intel Core i9-12900 (100%)

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 7 7840U AMD Ryzen 7 7840U
8C 16T @ 5.10 GHz
1755 (88%)
Intel Core i9-12900 Intel Core i9-12900
16C 24T @ 5.10 GHz
1988 (100%)

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 7 7840U AMD Ryzen 7 7840U
8C 16T @ 3.30 GHz
13450 (51%)
Intel Core i9-12900 Intel Core i9-12900
16C 24T @ 4.20 GHz
26455 (100%)

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 7 7840U AMD Ryzen 7 7840U
8C 16T @ 5.10 GHz
1850 (94%)
Intel Core i9-12900 Intel Core i9-12900
16C 24T @ 5.10 GHz
1968 (100%)

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 7 7840U AMD Ryzen 7 7840U
8C 16T @ 3.30 GHz
9612 (61%)
Intel Core i9-12900 Intel Core i9-12900
16C 24T @ 4.20 GHz
15712 (100%)

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 7 7840U AMD Ryzen 7 7840U
8C 16T @ 5.10 GHz
2446 (93%)
Intel Core i9-12900 Intel Core i9-12900
16C 24T @ 5.10 GHz
2637 (100%)

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 7 7840U AMD Ryzen 7 7840U
8C 16T @ 3.30 GHz
10726 (70%)
Intel Core i9-12900 Intel Core i9-12900
16C 24T @ 4.20 GHz
15367 (100%)

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 7 7840U AMD Ryzen 7 7840U
AMD Radeon 780M @ 2.70 GHz
4201 (100%)
Intel Core i9-12900 Intel Core i9-12900
Intel UHD Graphics 770 @ 1.55 GHz
794 (19%)

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 7 7840U AMD Ryzen 7 7840U
8C 16T @ 3.30 GHz
25337 (69%)
Intel Core i9-12900 Intel Core i9-12900
16C 24T @ 4.20 GHz
36739 (100%)

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 7 7840U AMD Ryzen 7 7840U
8C 16T @ 5.10 GHz
0 (0%)
Intel Core i9-12900 Intel Core i9-12900
16C 24T @ 5.10 GHz
764 (100%)

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 7 7840U AMD Ryzen 7 7840U
8C 16T @ 3.30 GHz
0 (0%)
Intel Core i9-12900 Intel Core i9-12900
16C 24T @ 4.20 GHz
10097 (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 7 7840U AMD Ryzen 7 7840U
8C 16T @ 5.10 GHz
0 (0%)
Intel Core i9-12900 Intel Core i9-12900
16C 24T @ 5.10 GHz
287 (100%)

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 7 7840U AMD Ryzen 7 7840U
8C 16T @ 3.30 GHz
0 (0%)
Intel Core i9-12900 Intel Core i9-12900
16C 24T @ 4.20 GHz
3911 (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 7 7840U AMD Ryzen 7 7840U
13,450 CB R23 MC @ 30 W
448 (100%)
Intel Core i9-12900 Intel Core i9-12900
2.40 GHz
0 (0%)

Performance for Artificial Intelligence (AI) and Machine Learning (ML)

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. The performance is given in the number (trillions) of arithmetic operations per second (TOPS).
AMD Ryzen 7 7840U AMD Ryzen 7 7840U
8C 16T @ 3.30 GHz
10 (100%)
Intel Core i9-12900 Intel Core i9-12900
16C 24T @ 2.40 GHz
0 (0%)

Devices using this processor

AMD Ryzen 7 7840U Intel Core i9-12900
AOKZOE A1 Pro Unknown

News and articles for the AMD Ryzen 7 7840U and the Intel Core i9-12900


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