GPUs

Qualcomm Adreno 840 vs Qualcomm Adreno 420 Full Specs

1,536 Shaders
1.2GHz
128 Shaders
600MHz
Shared Memory84.8GB/sLPDDR5X
Shared Memory25.6GB/sLPDDR3
··
3.69 TFLOPS
··
153.6 GFLOPS
Form Factor
iGPU
Form Factor
iGPU
TDP
5W
TDP
5W

Adreno 840Adreno 8407.37 TFLOPSFP16
x24.00
Adreno 420Adreno 420307.2 GFLOPSFP16
x1

Clock Speed
··
Clock Speed
···
Peak OPS
7.37 TFLOPSFP16
Peak OPS
307.2 GFLOPSFP16
BF16
7.37 TFLOPS
-
FP32
3.69 TFLOPS
FP32
153.6 GFLOPS
FP64
921.6 GFLOPS
FP64
38.4 GFLOPS
Pixel Rate
57.6 GPixel/s
Pixel Rate
4.8 GPixel/s
Texture Rate
115.2 GTexel/s
Texture Rate
4.8 GTexel/s

Shaders
1,536 Shaders
Shaders
128 Shaders
TMUs
96 TMUs
TMUs
8 TMUs
ROPs
48 ROPs
ROPs
8 ROPs
EUs
12 EUs
Units
-

Base Clock
-
Base Clock
500MHz
Boost Clock
1.2GHz
Boost Clock
600MHz

L2 Cache
1MB shared
L2 Cache
1.5MB shared
L3 Cache
18MB shared
L3 Cache
-

Shared MemoryLPDDR5X
Shared MemoryLPDDR3
Memory Bus
64-bit
Memory Bus
128-bit
Memory Speed
10.6GT/s
Memory Speed
1.6GT/s
Memory Bandwidth
84.8GB/s
Memory Bandwidth
25.6GB/s
ECC
No
ECC
No

TDP
5W
TDP
5W

Multi-Monitor
1
Multi-Monitor
1

Encoder Model
Hexagon
Encoder Model
QDSP6

Decoder Model
Hexagon AV1
Decoder Model
QDSP6

Form Factor
iGPU
Form Factor
iGPU

Manufacturer
Manufacturer
Chip Designer
Chip Designer
Architecture
Architecture
Family
Family
Branding
Adreno branding
Branding
Adreno branding
Market Segment
Smartphone
Market Segment
Smartphone
Release Date
Sep 24, 2025
Release Date
Nov 1, 2013

Foundry
TSMC
Foundry
TSMC
Fabrication Node
N3E
Fabrication Node
28nm HPM
Die Size
126mm²
Die Size
-

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