AMD Ryzen 9 5900HX vs Intel Core i7-1255UL

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CPU comparison with benchmarks

-VS-

CPU lineage

AMD Ryzen 9 5900HX or AMD Ryzen 9 5900HX – which processor offers superior performance? In this comparison, we examine disparities and assess which of these two CPUs outperforms the other. We delve into technical specifications and benchmark outcomes.
The AMD Ryzen 9 5900HX features 8 processor cores and has the capability to manage 16 threads concurrently.
It was released in Q2/2021 and belongs to the 4 generation of the AMD Ryzen 9 series.
To use the AMD Ryzen 9 5900HX, you'll need a motherboard with a FP6 socket.
The Intel Core i7-1255UL features 10 processor cores and has the capability to manage 12 threads concurrently.
It was released in Q3/2022 and belongs to the 12 generation of the Intel Core i7 series.
To use the Intel Core i7-1255UL, you'll need a motherboard with a BGA 1744 socket.
AMD Ryzen 5000H Group Intel Core i 1200P/1200U
4 Generation 12
Mobile Segment Mobile
AMD Ryzen 9 5900HX Name Intel Core i7-1255UL
AMD Ryzen 9 Family Intel Core i7
 
 

CPU Cores and Base Frequency

The AMD Ryzen 9 5900HX has 8 CPU cores and can calculate 16 threads in parallel.
The clock frequency of the AMD Ryzen 9 5900HX is 3.3 GHz
and turbo frequency for one core is 4.6 GHz.
The number of CPU cores greatly affects the speed of the processor and is an important performance indicator.
The Intel Core i7-1255UL has 10 CPU cores and can calculate 12 threads in parallel.
The clock frequency of the A-Core is 2.6 GHz.
Processors with hybrid (big.LITTLE) architecture strike a balance between performance and power efficiency, making them ideal for mobile devices.
16 Threads 12
8x Cores None
None None 1.2 GHz
8 CPU Cores 10
normal Core architecture hybrid (big.LITTLE)
None None 2x Golden Cove
Yes Hyperthreading Yes
None None 2.6 GHz
None None 4.7 GHz
No Overclocking No
None None 8x Gracemont
None None 3.5 GHz
4.6 GHz Turbo Frequency (1 core) None
3.3 GHz Frequency None
4.2 GHz Turbo Frequency (all cores) None
 
 

Internal Graphics

The AMD Ryzen 9 5900HX has integrated graphics, called iGPU for short.
Specifically, the AMD Ryzen 9 5900HX uses the AMD Radeon 8 Graphics (Renoir), which has 512 texture shaders
and 8 execution units.
The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
The Intel Core i7-1255UL has integrated graphics, called iGPU for short.
Specifically, the Intel Core i7-1255UL uses the Intel Iris Xe Graphics 96 (Alder Lake), which has 768 texture shaders
and 96 execution units.
512 Shaders 768
Q1/2020 Release date Q1/2022
7 nm Technology 10 nm
12 Direct X 12.1
2.0 GB Max. GPU Memory 32.0 GB
-- Max. displays --
8 Execution units 96
1.9 GHz GPU frequency 0.35 GHz
9 Generation 13
-- GPU (Turbo) 1.25 GHz
AMD Radeon 8 Graphics (Renoir) GPU name Intel Iris Xe Graphics 96 (Alder Lake)
 
 

Artificial Intelligence and Machine Learning

-- AI specifications --
-- AI hardware --
 
 

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.
Decode / Encode VP8 Decode
Decode VC-1 Decode
Decode / Encode JPEG Decode / Encode
No AV1 Decode
Decode / Encode h265 / HEVC (8 bit) Decode / Encode
Decode / Encode AVC Decode / Encode
Decode / Encode h264 Decode / Encode
Decode / Encode VP9 Decode / Encode
Decode / Encode h265 / HEVC (10 bit) Decode / Encode
 
 

Memory & PCIe

The processor supports a maximum memory capacity of 64.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 51.2 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
The processor supports a maximum memory capacity of 64.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 76.8 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
pci PCIe pci
Yes AES-NI Yes
DDR4-3200, LPDDR4-4266 Memory type DDR4-3200, DDR5-4800
No ECC No
64.0 GB Max. Memory 64.0 GB
2 Memory channels 2
51.2 GB/s Bandwidth 76.8 GB/s
 
 

Thermal Management

The processor has a thermal design power (TDP) of 45 W watts.
TDP indicates the cooling solution needed to effectively manage the processor's heat. It generally provides an approximate indication of the actual power consumption of the CPU itself.
The processor has a thermal design power (TDP) of 15 W watts.
None TDP (PL2) 55 W
35 W TDP down 12 W
54 W TDP up 28 W
45 W TDP (PL1 / PBP) 15 W
105 °C Tjunction max 100 °C
 
 

Technical details

The AMD Ryzen 9 5900HX is manufactured using a 7 nm process.
A smaller manufacturing process indicates a more contemporary and energy-efficient CPU.
In total, this processor boasts a generous 16.0 MB cache.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The Intel Core i7-1255UL is manufactured using a 10 nm process.
In total, this processor boasts a generous 12.0 MB cache.
Q2/2021 Release date Q3/2022
AMD-V, SVM Virtualization VT-x, VT-x EPT, VT-d
SSE4a, SSE4.1, SSE4.2, FMA3, AVX2 ISA extensions SSE4.1, SSE4.2, AVX2
7 nm Technology 10 nm
Chiplet Chip design Monolithic
-- Release price --
Cezanne (Zen 3) Architecture Alder Lake U
16.0 MB L3-Cache 12.0 MB
Windows 10, Linux, Windows 11 Operating systems Windows 10, Linux, Windows 11
Technical data sheet Documents Technical data sheet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
-- Part Number --
FP6 Socket BGA 1744
4.0 MB L2-Cache 6.5 MB