AMD RX-421ND vs AMD Ryzen 7 6800U

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CPU comparison with benchmarks

-VS-

CPU lineage

AMD RX-421ND or AMD RX-421ND – 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 RX-421ND features 4 processor cores and has the capability to manage 4 threads concurrently.
It was released in Q4/2015 and belongs to the 1 generation of the AMD R series.
To use the AMD RX-421ND, you'll need a motherboard with a FP4 socket.
The AMD Ryzen 7 6800U features 8 processor cores and has the capability to manage 16 threads concurrently.
It was released in Q1/2022 and belongs to the 5 generation of the AMD Ryzen 7 series.
To use the AMD Ryzen 7 6800U, you'll need a motherboard with a FP7 socket.
AMD RX 1st Gen. Group AMD Ryzen 6000U/7035U
1 Generation 5
AMD RX-421ND Name AMD Ryzen 7 6800U
Mobile Segment Mobile
AMD R Family AMD Ryzen 7
 
 

CPU Cores and Base Frequency

The AMD RX-421ND has 4 CPU cores and can calculate 4 threads in parallel.
The clock frequency of the AMD RX-421ND is 2.1 GHz
and turbo frequency for one core is 3.4 GHz.
The AMD Ryzen 7 6800U has 8 CPU cores and can calculate 16 threads in parallel.
The clock frequency of the AMD Ryzen 7 6800U is 2.7 GHz
and turbo frequency for one core is 4.7 GHz.
The number of CPU cores greatly affects the speed of the processor and is an important performance indicator.
None None 3.4 GHz
3.4 GHz Turbo Frequency (1 core) 4.7 GHz
normal Core architecture normal
2.1 GHz Frequency 2.7 GHz
4 CPU Cores 8
No Overclocking No
No Hyperthreading Yes
4x Cores 8x Zen 3+
4 Threads 16
 
 

Internal Graphics

The AMD RX-421ND does not have integrated graphics.
The AMD Ryzen 7 6800U has integrated graphics, called iGPU for short.
Specifically, the AMD Ryzen 7 6800U uses the AMD Radeon RX 680M, which has 768 texture shaders
and 12 execution units.
The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
-- GPU (Turbo) 2.2 GHz
-- Technology 6 nm
-- Direct X 12
0 bytes Max. GPU Memory 8.0 GB
-- Execution units 12
-- Release date Q1/2022
GPU name AMD Radeon RX 680M
-- Shaders 768
-- GPU frequency 2.0 GHz
-- Generation 9
-- Max. displays --
 
 

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.
-- h265 / HEVC (8 bit) Decode / Encode
-- VP9 Decode / Encode
-- VP8 Decode / Encode
-- VC-1 Decode
-- JPEG Decode / Encode
-- h264 Decode / Encode
-- h265 / HEVC (10 bit) Decode / Encode
-- AVC Decode / Encode
-- AV1 Decode
 
 

Memory & PCIe

The processor supports a maximum memory capacity of 64.0 GB distributed across 4 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.
DDR3-2133, DDR4-2400 Memory type DDR5-4800, LPDDR5-6400
-- Bandwidth 76.8 GB/s
Yes AES-NI Yes
Yes ECC No
pci PCIe pci
0 bytes Max. Memory 64.0 GB
2 Memory channels 4
 
 

Thermal Management

The processor has a thermal design power (TDP) of 35 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 up 28 W
12 W TDP down None
35 W TDP (PL1 / PBP) 15 W
90 °C Tjunction max 105 °C
 
 

Technical details

The AMD RX-421ND is manufactured using a 28 nm process.
A smaller manufacturing process indicates a more contemporary and energy-efficient CPU.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The AMD Ryzen 7 6800U is manufactured using a 6 nm process.
In total, this processor boasts a generous 16.0 MB cache.
AMD-V, AMD-Vt Virtualization AMD-V, SVM
28 nm Technology 6 nm
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4 ISA extensions SSE4a, SSE4.1, SSE4.2, FMA3, AVX2
RE421NAAY43KA Part Number --
-- Chip design Chiplet
Q4/2015 Release date Q1/2022
-- Release price --
2.0 MB L2-Cache 4.0 MB
Technical data sheet Documents Technical data sheet
0 bytes L3-Cache 16.0 MB
FP4 Socket FP7
Operating systems Windows 10, Linux, Windows 11
Merlin Falcon (Excavator) Architecture Rembrandt (Zen 3+)