AMD Radeon RX 640 Mobile vs NVIDIA RTX A2000 Max-Q
GPU Specs Compare
Graphics Card
Release Date
May 2019
Apr 2021
Generation
Mobility Radeon
Ampere-MW
Type
Mobile
Mobile
Bus Interface
PCIe 3.0 x8
PCIe 4.0 x16
Clock Speeds
Base Clock
1082 MHz
682 MHz
Boost Clock
1218 MHz
1207 MHz
Memory Clock
1500 MHz
1375 MHz
Memory
Memory Size
2GB
4GB
Memory Type
GDDR5
GDDR6
Memory Bus
64bit
128bit
Bandwidth
48.00GB/s
176.0GB/s
Render Config
Compute Units
10
-
Shading Units
640
2560
TMUs
40
80
ROPs
16
48
L1 Cache
16 KB (per CU)
128 KB (per SM)
L2 Cache
512 KB
2 MB
SM Count
-
20
Tensor Cores
-
80
RT Cores
-
20
Theoretical Performance
Pixel Rate
19.49 GPixel/s
57.94 GPixel/s
Texture Rate
48.72 GTexel/s
96.56 GTexel/s
FP16 (half)
1.559 TFLOPS
6.180 TFLOPS
FP32 (float)
1.559 TFLOPS
6.180 TFLOPS
FP64 (double)
97.44 GFLOPS
96.56 GFLOPS
Graphics Processor
GPU Name
Polaris 23
GA107
GPU Variant
Polaris 23 XT
-
Architecture
GCN 4.0
Ampere
Foundry
GlobalFoundries
Samsung
Process Size
14 nm
8 nm
Transistors
2.2 billion
8.7 billion
Die Size
103 mm²
200 mm²
Board Design
TDP
50W
95W
Outputs
No outputs
Portable Device Dependent
Power Connectors
None
None
Graphics Features
DirectX
12 (12_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.1
3.0
Vulkan
1.2
1.3
Shader Model
6.4
6.8
CUDA
-
8.6