AMD Radeon RX 640 Mobile vs AMD Radeon Pro V620
GPU · Specs Compare
Graphics Card
Release Date
May 2019
Nov 2021
Generation
Mobility Radeon
Radeon Pro
Type
Mobile
Desktop
Bus Interface
PCIe 3.0 x8
PCIe 4.0 x16
Clock Speeds
Base Clock
1082 MHz
1825 MHz
Boost Clock
1218 MHz
2200 MHz
Memory Clock
1500 MHz
2000 MHz
Memory
Memory Size
2GB
32GB
Memory Type
GDDR5
GDDR6
Memory Bus
64bit
256bit
Bandwidth
48.00GB/s
512.0GB/s
Render Config
Compute Units
10
72
Shading Units
640
4608
TMUs
40
288
ROPs
16
128
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
512 KB
4 MB
RT Cores
—
72
L3 Cache
—
128 MB
Theoretical Performance
Pixel Rate
19.49 GPixel/s
281.6 GPixel/s
Texture Rate
48.72 GTexel/s
633.6 GTexel/s
FP16 (half)
1.559 TFLOPS
40.55 TFLOPS
FP32 (float)
1.559 TFLOPS
20.28 TFLOPS
FP64 (double)
97.44 GFLOPS
1267 GFLOPS
Graphics Processor
GPU Name
Polaris 23
Navi 21
GPU Variant
Polaris 23 XT
Navi 21 XT(215-121000177)
Architecture
GCN 4.0
RDNA 2.0
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
7 nm
Transistors
2.2 billion
26.8 billion
Die Size
103 mm²
520 mm²
Board Design
TDP
50W
300W
Outputs
No outputs
No outputs
Power Connectors
None
2x 8-pin
Suggested PSU
—
700 W
Graphics Features
DirectX
12 (12_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.1
2.1
Vulkan
1.2
1.3
Shader Model
6.4
6.5
▲ Specs Compare
Data sourced from official specifications and benchmark tests.