AMD RX-421BD Qualcomm Snapdragon 670
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AMD RX-421BD vs Qualcomm Snapdragon 670

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Performance Overview
Average performance across multiple benchmarks

Single-core performance
Rank ?
AMD RX-421BD
Rank ?
Qualcomm Snapdragon 670
Multi-core performance
Rank ?
AMD RX-421BD
Rank ?
Qualcomm Snapdragon 670
iGPU - FP32 Performance (Single-precision GFLOPS)

iGPU - FP32 Performance (Single-precision GFLOPS)

AMD RX-421BD
AMD RX-421BD 100 %
AMD Radeon R7 - 512 (Merlin Falcon)
820
Qualcomm Snapdragon 670
Qualcomm Adreno 615
358

More benchmarks

At a glance

Wischen
AMD RX-421BDQualcomm Snapdragon 670
FamilyAMD R (6)Qualcomm Snapdragon (105)
CPU groupAMD RX 1st Gen. (6)Qualcomm Snapdragon 670 (1)
ArchitectureMerlin Falcon (Excavator)Kryo 360
Technology28 nm10 nm
SegmentNotebookSmartphone / Tablet
SocketFP4
Predecessor
Successor

CPU Cores and Base Frequency

Wischen
AMD RX-421BDQualcomm Snapdragon 670
CPU Cores / Threads4 / 48 / 8
Hyperthreading / SMT
Core architecturenormalhybrid (big.LITTLE)
Core Cluster 1: 4x
2.10 - 3.40 GHz
2x Kryo 360 Gold
2.00 GHz
Core Cluster 2: 6x Kryo 360 Silver
1.70 GHz
L2-Cache2.00 MB
L3-Cache
Overclocking

Integrated graphics (iGPU)

Wischen
AMD RX-421BDQualcomm Snapdragon 670
GPU nameAMD Radeon R7 - 512 (Merlin Falcon)Qualcomm Adreno 615
GPU frequency0.80 GHz0.70 - 0.70 GHz
CUs / Shader8 / 512 / 256
Raytracing
Max. displays30
Max. GPU Memory2 GB
Technology2810 nm
Release date2015Q2/2018

NPU AI performance

Wischen
AMD RX-421BDQualcomm Snapdragon 670
AI hardwareQualcomm AI engine
AI specificationsHexagon 685 @ 3 TOPS
NPU + CPU + iGPU

Memory & PCIe

Wischen
AMD RX-421BDQualcomm Snapdragon 670
MemoryDDR4-2400 (38.4 GB/s)
DDR3-2133 (34.2 GB/s)
LPDDR4X-3733 (14.9 GB/s)
Max. Memory8 GB
Memory channels22
ECCYesNo
PCIe3.0 x 12
PCIe Bandwidth11.8 GB/s

Thermal Management

Wischen
AMD RX-421BDQualcomm Snapdragon 670
TDP35 W
TDP (PL2)
TDP up
TDP down12 W
T. junction max.90 °C

Technical details

Wischen
AMD RX-421BDQualcomm Snapdragon 670
Chip designUnknownChiplet
AES-NI
Operating systemsAndroid
Instruction setx86-64 (64 bit)Armv8-A (64 bit)
ISA extensionsSSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4
Release dateQ4/2015Q3/2018
Release price
DocumentsTechnical data sheet

Your rating

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AMD RX-421BD
AMD RX-421BD
4C / 4T · 2.10 - 3.40 GHz
Qualcomm Snapdragon 670
Qualcomm Snapdragon 670
8C / 8T · 2.00 GHz

Most popular CPUs in both categories

AMD RX-421BD
AMD RX-421BD
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