AMD Ryzen 7 PRO 7840U vs AMD Ryzen 5 PRO 7540U

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CPU comparison with benchmarks


AMD Ryzen 7 PRO 7840U CPU1 vs CPU2 AMD Ryzen 5 PRO 7540U
AMD Ryzen 7 PRO 7840U AMD Ryzen 5 PRO 7540U

CPU comparison

AMD Ryzen 7 PRO 7840U or AMD Ryzen 5 PRO 7540U - 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 PRO 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 PRO 7840U was released in Q2/2023.

The AMD Ryzen 5 PRO 7540U has 6 cores with 12 threads and clocks with a maximum frequency of 4.90 GHz. The CPU supports up to 256 GB of memory in 2 memory channels. The AMD Ryzen 5 PRO 7540U was released in Q2/2023.
AMD Ryzen 7 PRO (21) Family AMD Ryzen 5 PRO (28)
AMD Ryzen 7040 (21) CPU group AMD Ryzen 7040 (21)
6 Generation 6
Phoenix (Zen 4) Architecture Phoenix (Zen 4)
Notebook Segment Notebook
-- Predecessor --
AMD Ryzen 7 PRO 8840U Successor AMD Ryzen 5 PRO 8540U

CPU Cores and Base Frequency

The AMD Ryzen 7 PRO 7840U has 8 CPU cores and can calculate 16 threads in parallel. The clock frequency of the AMD Ryzen 7 PRO 7840U is 3.30 GHz (5.10 GHz) while the AMD Ryzen 5 PRO 7540U has 6 CPU cores and 12 threads can calculate simultaneously. The clock frequency of the AMD Ryzen 5 PRO 7540U is at 3.20 GHz (4.90 GHz).

AMD Ryzen 7 PRO 7840U Characteristic AMD Ryzen 5 PRO 7540U
8 Cores 6
16 Threads 12
normal Core architecture normal
Yes Hyperthreading Yes
No Overclocking ? No
3.30 GHz Frequency 3.20 GHz
5.10 GHz Turbo Frequency (1 Core) 4.90 GHz
-- Turbo Frequency (All Cores) --

NPU AI performance

The performance values of the processor's AI unit. The isolated NPU performance is specified here, the total AI performance (NPU+CPU+iGPU) can be higher. Processors with support for artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors.

AMD Ryzen 7 PRO 7840U Characteristic AMD Ryzen 5 PRO 7540U
AMD Ryzen™ AI AI hardware --
AMD dedicated AI XDNA Technology AI specifications --
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

The AMD Ryzen 7 PRO 7840U or AMD Ryzen 5 PRO 7540U 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 780M GPU AMD Radeon 740M
0.80 GHz GPU frequency 0.80 GHz
2.70 GHz GPU (Turbo) 2.50 GHz
3 GPU Generation 10
4 nm Technology 4 nm
4 Max. displays 4
12 Compute units 4
768 Shader 256
Yes Hardware Raytracing Yes
AMD FSR Frame Generation AMD FSR
32 GB Max. GPU Memory 32 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 AMD Radeon 740M
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
Decode Codec VP8 Decode
Decode / Encode Codec AV1 Decode / Encode
Decode Codec AVC Decode
Decode Codec VC-1 Decode
Decode / Encode Codec JPEG Decode / Encode

Memory & PCIe

The AMD Ryzen 7 PRO 7840U can use up to 256 GB of memory in 2 memory channels. The maximum memory bandwidth is 120.0 GB/s. The AMD Ryzen 5 PRO 7540U supports up to 256 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 120.0 GB/s.

AMD Ryzen 7 PRO 7840U Characteristic AMD Ryzen 5 PRO 7540U
DDR5-4800, DDR5-5600, LPDDR5-6400, LPDDR5X-7500 Memory DDR5-4800, DDR5-5600, LPDDR5-6400, LPDDR5X-7500
256 GB Max. Memory 256 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
120.0 GB/s Max. Bandwidth 120.0 GB/s
Yes ECC Yes
8.00 MB L2 Cache 6.00 MB
16.00 MB L3 Cache 16.00 MB
4.0 PCIe version 4.0
20 PCIe lanes 20
39.4 GB/s PCIe Bandwidth 39.4 GB/s

Thermal Management

The thermal design power (TDP for short) of the AMD Ryzen 7 PRO 7840U is 28 W, while the AMD Ryzen 5 PRO 7540U has a TDP of 15 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.

AMD Ryzen 7 PRO 7840U Characteristic AMD Ryzen 5 PRO 7540U
28 W TDP (PL1 / PBP) 15 W
-- TDP (PL2) --
30 W TDP up --
15 W TDP down --
100 °C Tjunction max. 100 °C

Technical details

The AMD Ryzen 7 PRO 7840U is manufactured in 4 nm and has 24.00 MB cache. The AMD Ryzen 5 PRO 7540U is manufactured in 4 nm and has a 22.00 MB cache.

AMD Ryzen 7 PRO 7840U Characteristic AMD Ryzen 5 PRO 7540U
4 nm Technology 4 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 SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512
FP8 Socket FP8
AMD-V, SVM Virtualization AMD-V, SVM
Yes AES-NI Yes
Windows 10, Windows 11, Linux Operating systems Windows 10, Windows 11, Linux
Q2/2023 Release date Q2/2023
-- Release price --
show more data show more data


Rate these processors

Here you can rate the AMD Ryzen 7 PRO 7840U to help other visitors make their purchasing decisions. The average rating is 4.8 stars (16 ratings). Rate now:
Here you can rate the AMD Ryzen 5 PRO 7540U to help other visitors make their purchasing decisions. The average rating is 4.3 stars (4 ratings). Rate now:

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 PRO 7840U AMD Ryzen 7 PRO 7840U
AMD Radeon 780M @ 2.70 GHz
4201 (100%)
AMD Ryzen 5 PRO 7540U AMD Ryzen 5 PRO 7540U
AMD Radeon 740M @ 2.50 GHz
1280 (30%)

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 PRO 7840U AMD Ryzen 7 PRO 7840U
8C 16T @ 5.10 GHz
1755 (100%)
AMD Ryzen 5 PRO 7540U AMD Ryzen 5 PRO 7540U
6C 12T @ 4.90 GHz
0 (0%)

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 PRO 7840U AMD Ryzen 7 PRO 7840U
8C 16T @ 3.30 GHz
13549 (100%)
AMD Ryzen 5 PRO 7540U AMD Ryzen 5 PRO 7540U
6C 12T @ 3.20 GHz
0 (0%)

Geekbench 6 (Single-Core)

Geekbench 6 is a partial load benchmark for modern computers, notebooks and smartphones. In the single-core test, only the fastest CPU core is measured. The test run simulates the performance in practice.
AMD Ryzen 7 PRO 7840U AMD Ryzen 7 PRO 7840U
8C 16T @ 5.10 GHz
2446 (100%)
AMD Ryzen 5 PRO 7540U AMD Ryzen 5 PRO 7540U
6C 12T @ 4.90 GHz
0 (0%)

Geekbench 6 (Multi-Core)

The practical Geekbench 6 multi-core benchmark tests the system's performance under partial load. The processor's maximum power consumption is far from being used up.
AMD Ryzen 7 PRO 7840U AMD Ryzen 7 PRO 7840U
8C 16T @ 3.30 GHz
10726 (100%)
AMD Ryzen 5 PRO 7540U AMD Ryzen 5 PRO 7540U
6C 12T @ 3.20 GHz
0 (0%)

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 PRO 7840U AMD Ryzen 7 PRO 7840U
8C 16T @ 5.10 GHz
1850 (100%)
AMD Ryzen 5 PRO 7540U AMD Ryzen 5 PRO 7540U
6C 12T @ 4.90 GHz
0 (0%)

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 PRO 7840U AMD Ryzen 7 PRO 7840U
8C 16T @ 3.30 GHz
9612 (100%)
AMD Ryzen 5 PRO 7540U AMD Ryzen 5 PRO 7540U
6C 12T @ 3.20 GHz
0 (0%)

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 PRO 7840U AMD Ryzen 7 PRO 7840U
8C 16T @ 3.30 GHz
24755 (100%)
AMD Ryzen 5 PRO 7540U AMD Ryzen 5 PRO 7540U
6C 12T @ 3.20 GHz
0 (0%)

AI performance (NPU)

The performance values of the processor's AI unit. The isolated NPU performance is given here, the total AI performance (NPU+CPU+iGPU) can be higher.

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 PRO 7840U AMD Ryzen 7 PRO 7840U
8C 16T @ 3.30 GHz
10 (100%)
AMD Ryzen 5 PRO 7540U AMD Ryzen 5 PRO 7540U
6C 12T @ 3.20 GHz
0 (0%)

Devices using this processor

AMD Ryzen 7 PRO 7840U AMD Ryzen 5 PRO 7540U
Unknown Unknown

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