Qualcomm Snapdragon 8cx vs. AMD Ryzen 9 4900U

CPU comparison with benchmarks


Qualcomm Snapdragon 8cx CPU1 vs CPU2 AMD Ryzen 9 4900U
Qualcomm Snapdragon 8cx AMD Ryzen 9 4900U
Qualcomm Snapdragon Family AMD Ryzen
Qualcomm Snapdragon 8cx CPU group AMD Ryzen 4000U
3 Generation 3
Kryo 495 Architecture Renoir (Zen 2)
Mobile Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base FrequencyCPU Cores and Base Frequency

8 Cores 8
8 Threads 16
1.80 GHz Frequency 2.00 GHz
2.84 GHz Turbo (1 Core) 4.40 GHz
2.84 GHz Turbo (All Cores) 3.40 GHz
hybrid (big.LITTLE) Core architecture normal
No Hyperthreading Yes
No Overclocking ? No

Internal GraphicsInternal Graphics

Qualcomm Adreno 680 GPU AMD Radeon 8 Graphics (Renoir)
0.25 GHz GPU frequency 1.75 GHz
0.59 GHz GPU (Turbo)
5 GPU Generation 9
7 nm Technology 7 nm
2 Max. displays 3
8 Execution units 8
768 Shader 512
4 GB Max. GPU Memory 2 GB
12.0 DirectX Version 12

Hardware codec supportHardware codec support

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 / Encode Codec VP8 Decode / Encode
No Codec AV1 No
Decode Codec AVC Decode / Encode
Decode Codec VC-1 Decode
Decode / Encode Codec JPEG Decode / Encode

Memory & PCIeMemory & PCIe

LPDDR4X-2133 Memory DDR4-3200, LPDDR4-4266
16 GB Max. Memory 64 GB
8 Memory channels 2
No ECC Yes
L2 Cache
2.00 MB L3 Cache 8.00 MB
PCIe version 3.0
PCIe lanes 12

Thermal ManagementThermal Management

7 W TDP (PL1) 15 W
-- TDP (PL2) --
-- TDP up 25 W
-- TDP down 10 W
-- Tjunction max. 105 °C

Technical detailsTechnical details

7 nm Technology 7 nm
ARMv8-A64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
ISA extensions SSE4a, SSE4.1, SSE4.2, AVX2, FMA3
N/A Socket FP6
None Virtualization AMD-V, SVM
No AES-NI Yes
Q4/2018 Release date Q1/2020
show more data show more data


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.

Qualcomm Snapdragon 8cx Qualcomm Snapdragon 8cx
8x 1.80 GHz (2.84 GHz)
0 (0%)
Amazon
AMD Ryzen 9 4900U AMD Ryzen 9 4900U
8x 2.00 GHz (4.40 GHz) HT
1279 (100%)
Amazon
Show all Cinebench R23 (Single-Core) results



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.

Qualcomm Snapdragon 8cx Qualcomm Snapdragon 8cx
8x 1.80 GHz (2.84 GHz)
0 (0%)
Amazon
AMD Ryzen 9 4900U AMD Ryzen 9 4900U
8x 2.00 GHz (4.40 GHz) HT
501 (100%)
Amazon
Show all Cinebench R20 (Single-Core) results



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.

Qualcomm Snapdragon 8cx Qualcomm Snapdragon 8cx
8x 1.80 GHz (2.84 GHz)
0 (0%)
Amazon
AMD Ryzen 9 4900U AMD Ryzen 9 4900U
8x 2.00 GHz (4.40 GHz) HT
3292 (100%)
Amazon
Show all Cinebench R20 (Multi-Core) results



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.

Qualcomm Snapdragon 8cx Qualcomm Snapdragon 8cx
8x 1.80 GHz (2.84 GHz)
0 (0%)
Amazon
AMD Ryzen 9 4900U AMD Ryzen 9 4900U
8x 2.00 GHz (4.40 GHz) HT
204 (100%)
Amazon
Show all Cinebench R15 (Single-Core) results



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.

Qualcomm Snapdragon 8cx Qualcomm Snapdragon 8cx
8x 1.80 GHz (2.84 GHz)
0 (0%)
Amazon
AMD Ryzen 9 4900U AMD Ryzen 9 4900U
8x 2.00 GHz (4.40 GHz) HT
1384 (100%)
Amazon
Show all Cinebench R15 (Multi-Core) results



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.

Qualcomm Snapdragon 8cx Qualcomm Snapdragon 8cx
8x 1.80 GHz (2.84 GHz)
724 (59%)
Amazon
AMD Ryzen 9 4900U AMD Ryzen 9 4900U
8x 2.00 GHz (4.40 GHz) HT
1225 (100%)
Amazon
Show all Geekbench 5, 64bit (Single-Core) results



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.

Qualcomm Snapdragon 8cx Qualcomm Snapdragon 8cx
8x 1.80 GHz (2.84 GHz)
2808 (100%)
Amazon
AMD Ryzen 9 4900U AMD Ryzen 9 4900U
8x 2.00 GHz (4.40 GHz) HT
0 (0%)
Amazon
Show all Geekbench 5, 64bit (Multi-Core) results



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.

Qualcomm Snapdragon 8cx Qualcomm Snapdragon 8cx
Qualcomm Adreno 680 @ 0.59 GHz
1843 (100%)
Amazon
AMD Ryzen 9 4900U AMD Ryzen 9 4900U
AMD Radeon 8 Graphics (Renoir) @ 1.75 GHz
1792 (97%)
Amazon
Show all iGPU - FP32 Performance (Single-precision GFLOPS) results



Devices using this processorDevices using this processor

Qualcomm Snapdragon 8cx AMD Ryzen 9 4900U
Lenovo Flex 5G
Lenovo Yoga C 5G
Samsung Galaxy Book S
Unknown

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