AMD Radeon R9 M385X vs AMD Radeon RX 6600M
GPU Specs Compare
Graphics Card
Release Date
May 2015
May 2021
Generation
Gem System
Mobility Radeon
Type
Mobile
Mobile
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x8
Clock Speeds
Base Clock
1000 MHz
2068 MHz
Boost Clock
1100 MHz
2416 MHz
Memory Clock
1200 MHz
1750 MHz
Memory
Memory Size
4GB
8GB
Memory Type
GDDR5
GDDR6
Memory Bus
128bit
128bit
Bandwidth
76.80GB/s
224.0GB/s
Render Config
Compute Units
14
28
Shading Units
896
1792
TMUs
56
112
ROPs
16
64
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
256 KB
2 MB
RT Cores
-
28
L3 Cache
-
32 MB
Theoretical Performance
Pixel Rate
17.60 GPixel/s
154.6 GPixel/s
Texture Rate
61.60 GTexel/s
270.6 GTexel/s
FP32 (float)
1.971 TFLOPS
8.659 TFLOPS
FP64 (double)
123.2 GFLOPS
541.2 GFLOPS
FP16 (half)
-
17.32 TFLOPS
Graphics Processor
GPU Name
Strato
Navi 23
GPU Variant
Strato XT
-
Architecture
GCN 2.0
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
7 nm
Transistors
2.08 billion
11.06 billion
Die Size
160 mm²
237 mm²
Board Design
TDP
Unknown
100W
Outputs
Portable Device Dependent
No outputs
Power Connectors
-
None
Graphics Features
DirectX
12 (12_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.1
2.1
Vulkan
1.2.170
1.3
Shader Model
6.5
6.5