NVIDIA RTX A4000 Max-Q vs AMD Radeon RX 6600S
We compared two Mobile platform GPUs: 8GB VRAM RTX A4000 Max Q and 4GB VRAM Radeon RX 6600S to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA RTX A4000 Max-Q 's Advantages
More VRAM (8GB vs 4GB)
Larger VRAM bandwidth (352.0GB/s vs 224.0GB/s)
3328 additional rendering cores
AMD Radeon RX 6600S 's Advantages
Released 9 months late
Boost Clock has increased by 43% (2000MHz vs 1395MHz)
Score
Benchmark
FP32 (float)
RTX A4000 Max Q
+99%
14.28 TFLOPS
Radeon RX 6600S
7.168 TFLOPS
Graphics Card
Apr 2021
Release Date
Jan 2022
Ampere-MW
Generation
Mobility Radeon
Mobile
Type
Mobile
PCIe 4.0 x16
Bus Interface
PCIe 4.0 x8
Clock Speeds
780 MHz
Base Clock
1700 MHz
1395 MHz
Boost Clock
2000 MHz
1375 MHz
Memory Clock
1750 MHz
Memory
8GB
Memory Size
4GB
GDDR6
Memory Type
GDDR6
256bit
Memory Bus
128bit
352.0GB/s
Bandwidth
224.0GB/s
Render Config
-
Compute Units
28
40
SM Count
-
5120
Shading Units
1792
160
TMUs
112
80
ROPs
64
160
Tensor Cores
-
40
RT Cores
28
128 KB (per SM)
L1 Cache
128 KB per Array
4 MB
L2 Cache
2 MB
-
L3 Cache
32 MB
Theoretical Performance
111.6 GPixel/s
Pixel Rate
128.0 GPixel/s
223.2 GTexel/s
Texture Rate
224.0 GTexel/s
14.28 TFLOPS
FP16 (half)
14.34 TFLOPS
14.28 TFLOPS
FP32 (float)
7.168 TFLOPS
223.2 GFLOPS
FP64 (double)
448.0 GFLOPS
Board Design
80W
TDP
80W
-
-
-
Portable Device Dependent
Outputs
No outputs
None
Power Connectors
None
Graphics Processor
GA104
GPU Name
Navi 23
-
-
-
Ampere
Architecture
RDNA 2.0
Samsung
Foundry
TSMC
8 nm
Process Size
7 nm
17.4 billion
Transistors
11.06 billion
392 mm²
Die Size
237 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
3.0
OpenCL
2.1
1.3
Vulkan
1.3
8.6
CUDA
-
6.8
Shader Model
6.5
