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GPU Comparison
AMD Radeon RX 6650M vs AMD Radeon R9 M390X
AMD Radeon RX 6650M vs AMD Radeon R9 M390X
VS
AMD Radeon RX 6650M
AMD Radeon R9 M390X
We compared two Mobile platform GPUs: 8GB VRAM Radeon RX 6650M and 4GB VRAM Radeon R9 M390X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon RX 6650M 's Advantages
Released 6 years and 8 months late
Boost Clock2416MHz
More VRAM (8GB vs 4GB)
Larger VRAM bandwidth (256.0GB/s vs 160.0GB/s)
AMD Radeon R9 M390X 's Advantages
256 additional rendering cores
Lower TDP (75W vs 120W)
Score
Benchmark
FP32 (float)
Radeon RX 6650M
+192%
8.659 TFLOPS
Radeon R9 M390X
2.961 TFLOPS
Radeon RX 6650M
VS
Radeon R9 M390X
Graphics Card
Jan 2022
Release Date
May 2015
Mobility Radeon
Generation
Crystal System
Mobile
Type
Mobile
PCIe 4.0 x8
Bus Interface
PCIe 3.0 x16
Clock Speeds
2068 MHz
Base Clock
-
2416 MHz
Boost Clock
-
2000 MHz
Memory Clock
1250 MHz
Memory
8GB
Memory Size
4GB
GDDR6
Memory Type
GDDR5
128bit
Memory Bus
256bit
256.0GB/s
Bandwidth
160.0GB/s
Render Config
28
Compute Units
32
-
-
-
1792
Shading Units
2048
112
TMUs
128
64
ROPs
32
-
-
-
28
RT Cores
-
128 KB per Array
L1 Cache
16 KB (per CU)
2 MB
L2 Cache
512 KB
32 MB
L3 Cache
-
Theoretical Performance
154.6 GPixel/s
Pixel Rate
23.14 GPixel/s
270.6 GTexel/s
Texture Rate
92.54 GTexel/s
17.32 TFLOPS
FP16 (half)
2.961 TFLOPS
8.659 TFLOPS
FP32 (float)
2.961 TFLOPS
541.2 GFLOPS
FP64 (double)
185.1 GFLOPS
Board Design
120W
TDP
75W
-
-
-
No outputs
Outputs
No outputs
None
Power Connectors
None
Graphics Processor
Navi 23
GPU Name
Amethyst
-
GPU Variant
Amethyst XT
RDNA 2.0
Architecture
GCN 3.0
TSMC
Foundry
TSMC
7 nm
Process Size
28 nm
11.06 billion
Transistors
5 billion
237 mm²
Die Size
366 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 (12_0)
4.6
OpenGL
4.6
2.1
OpenCL
2.0
1.3
Vulkan
1.2
-
-
-
6.5
Shader Model
6.3
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7
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9
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