AMD Ryzen Z1 vs AMD Ryzen 9 5900

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CPU comparison with benchmarks


AMD Ryzen Z1 CPU1 vs CPU2 AMD Ryzen 9 5900
AMD Ryzen Z1 AMD Ryzen 9 5900

CPU comparison

In this CPU comparison, we compare the AMD Ryzen Z1 and the AMD Ryzen 9 5900 and use benchmarks to check which processor is faster.

We compare the AMD Ryzen Z1 6 core processor released in Q3/2023 with the AMD Ryzen 9 5900 which has 12 CPU cores and was introduced in Q2/2021.
AMD Ryzen Z1 (2) Family AMD Ryzen 9 (40)
AMD Ryzen 7040 (21) CPU group AMD Ryzen 5000 (14)
6 Generation 4
Phoenix (Zen 4) Architecture Vermeer (Zen 3)
Mobile Segment Desktop / Server
-- Predecessor AMD Ryzen 9 3900
-- Successor AMD Ryzen 9 7900

CPU Cores and Base Frequency

The AMD Ryzen Z1 is a 6 core processor with a clock frequency of 3.50 GHz (4.90 GHz). The processor can compute 12 threads at the same time. The AMD Ryzen 9 5900 clocks with 3.00 GHz (4.70 GHz), has 12 CPU cores and can calculate 24 threads in parallel.

AMD Ryzen Z1 Characteristic AMD Ryzen 9 5900
6 Cores 12
12 Threads 24
normal Core architecture normal
Yes Hyperthreading Yes
No Overclocking ? Yes
3.50 GHz Frequency 3.00 GHz
4.90 GHz Turbo Frequency (1 Core) 4.70 GHz
-- Turbo Frequency (All Cores) 4.10 GHz

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 Z1 Characteristic AMD Ryzen 9 5900
-- AI hardware --
-- AI specifications --
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

Graphics (iGPU) integrated into the processor not only enable image output without having to rely on a dedicated graphics solution, but can also efficiently accelerate video playback.

AMD Radeon 740M GPU no iGPU
0.80 GHz GPU frequency --
2.50 GHz GPU (Turbo) --
10 GPU Generation --
4 nm Technology
4 Max. displays
4 Compute units --
256 Shader --
Yes Hardware Raytracing No
AMD FSR Frame Generation No
32 GB Max. GPU Memory --
12 DirectX Version --

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 740M GPU no iGPU
Decode / Encode Codec h265 / HEVC (8 bit) No
Decode / Encode Codec h265 / HEVC (10 bit) No
Decode / Encode Codec h264 No
Decode Codec VP9 No
Decode Codec VP8 No
Decode / Encode Codec AV1 No
Decode Codec AVC No
Decode Codec VC-1 No
Decode / Encode Codec JPEG No

Memory & PCIe

Up to 256 GB of memory in a maximum of 2 memory channels is supported by the AMD Ryzen Z1, while the AMD Ryzen 9 5900 supports a maximum of 128 GB of memory with a maximum memory bandwidth of 51.2 GB/s enabled.

AMD Ryzen Z1 Characteristic AMD Ryzen 9 5900
DDR5-4800, DDR5-5600, LPDDR5-6400, LPDDR5X-7500 Memory DDR4-3200
256 GB Max. Memory 128 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
120.0 GB/s Max. Bandwidth 51.2 GB/s
Yes ECC Yes
6.00 MB L2 Cache 6.00 MB
16.00 MB L3 Cache 64.00 MB
4.0 PCIe version 4.0
20 PCIe lanes 20
39.4 GB/s PCIe Bandwidth 39.4 GB/s

Thermal Management

The AMD Ryzen Z1 has a TDP of 15 W. The TDP of the AMD Ryzen 9 5900 is 65 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

AMD Ryzen Z1 Characteristic AMD Ryzen 9 5900
15 W TDP (PL1 / PBP) 65 W
-- TDP (PL2) --
30 W TDP up --
15 W TDP down --
100 °C Tjunction max. 95 °C

Technical details

The AMD Ryzen Z1 has 22.00 MB cache and is manufactured in 4 nm. The cache of AMD Ryzen 9 5900 is at 70.00 MB. The processor is manufactured in 7 nm.

AMD Ryzen Z1 Characteristic AMD Ryzen 9 5900
4 nm Technology 7 nm
Monolithic Chip design Chiplet
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, AVX2, FMA3
FP8 Socket AM4 (PGA 1331)
AMD-V, SVM Virtualization AMD-V, SVM
Yes AES-NI Yes
Windows 10, Windows 11, Linux Operating systems Windows 10, Windows 11, Linux
Q3/2023 Release date Q2/2021
-- Release price --
show more data show more data


Rate these processors

Here you can rate the AMD Ryzen Z1 to help other visitors make their purchasing decisions. The average rating is 4.8 stars (5 ratings). Rate now:
Here you can rate the AMD Ryzen 9 5900 to help other visitors make their purchasing decisions. The average rating is 5.0 stars (1 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
AMD Ryzen Z1 (100%)
AMD Ryzen 9 5900 (93%)
⌀ Multi core performance in 1 CPU benchmarks
AMD Ryzen Z1 (56%)
AMD Ryzen 9 5900 (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 Z1 AMD Ryzen Z1
6C 12T @ 4.90 GHz
1821 (100%)
AMD Ryzen 9 5900 AMD Ryzen 9 5900
12C 24T @ 4.70 GHz
1688 (93%)

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 Z1 AMD Ryzen Z1
6C 12T @ 3.50 GHz
7706 (56%)
AMD Ryzen 9 5900 AMD Ryzen 9 5900
12C 24T @ 4.10 GHz
13874 (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 Z1 AMD Ryzen Z1
6C 12T @ 4.90 GHz
0 (0%)
AMD Ryzen 9 5900 AMD Ryzen 9 5900
12C 24T @ 4.70 GHz
1622 (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 Z1 AMD Ryzen Z1
6C 12T @ 3.50 GHz
0 (0%)
AMD Ryzen 9 5900 AMD Ryzen 9 5900
12C 24T @ 4.10 GHz
20955 (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 Z1 AMD Ryzen Z1
6C 12T @ 4.90 GHz
0 (0%)
AMD Ryzen 9 5900 AMD Ryzen 9 5900
12C 24T @ 4.70 GHz
2130 (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 Z1 AMD Ryzen Z1
6C 12T @ 3.50 GHz
0 (0%)
AMD Ryzen 9 5900 AMD Ryzen 9 5900
12C 24T @ 4.10 GHz
9740 (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 Z1 AMD Ryzen Z1
AMD Radeon 740M @ 2.50 GHz
1280 (100%)
AMD Ryzen 9 5900 AMD Ryzen 9 5900
@ 0.00 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 Z1 AMD Ryzen Z1
6C 12T @ 3.50 GHz
0 (0%)
AMD Ryzen 9 5900 AMD Ryzen 9 5900
12C 24T @ 4.10 GHz
34570 (100%)

CPU-Z Benchmark 17 (Multi-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
AMD Ryzen Z1 AMD Ryzen Z1
6C 12T @ 3.50 GHz
0 (0%)
AMD Ryzen 9 5900 AMD Ryzen 9 5900
12C 24T @ 3.00 GHz
7746 (100%)

Devices using this processor

AMD Ryzen Z1 AMD Ryzen 9 5900
Unknown Unknown

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