NVIDIA GeForce RTX 4090 Mobile vs NVIDIA GeForce 620M
We compared two Mobile platform GPUs: 16GB VRAM GeForce RTX 4090 Mobile and 1024MB VRAM GeForce 620M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce RTX 4090 Mobile 's Advantages
Released 10 years and 10 months late
Boost Clock1695MHz
More VRAM (16GB vs 1024GB)
Larger VRAM bandwidth (576.0GB/s vs 14.40GB/s)
9632 additional rendering cores
NVIDIA GeForce 620M 's Advantages
Lower TDP (15W vs 120W)
Score
Benchmark
FP32 (float)
GeForce RTX 4090 Mobile
+13641%
32.98 TFLOPS
GeForce 620M
0.24 TFLOPS
Graphics Card
Jan 2023
Release Date
Mar 2012
GeForce 40 Mobile
Generation
GeForce 600M
Mobile
Type
Mobile
PCIe 4.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
1335 MHz
Base Clock
-
1695 MHz
Boost Clock
-
2250 MHz
Memory Clock
900 MHz
Memory
16GB
Memory Size
1024MB
GDDR6
Memory Type
DDR3
256bit
Memory Bus
64bit
576.0GB/s
Bandwidth
14.40GB/s
Render Config
-
-
-
76
SM Count
2
9728
Shading Units
96
304
TMUs
16
112
ROPs
8
304
Tensor Cores
-
76
RT Cores
-
128 KB (per SM)
L1 Cache
64 KB (per SM)
64 MB
L2 Cache
128 KB
-
-
-
Theoretical Performance
189.8 GPixel/s
Pixel Rate
2.500 GPixel/s
515.3 GTexel/s
Texture Rate
10.00 GTexel/s
32.98 TFLOPS
FP16 (half)
-
32.98 TFLOPS
FP32 (float)
240.0 GFLOPS
515.3 GFLOPS
FP64 (double)
20.00 GFLOPS
Board Design
120W
TDP
15W
-
-
-
Portable Device Dependent
Outputs
No outputs
None
Power Connectors
-
Graphics Processor
AD103
GPU Name
GF117
GN21-X11
GPU Variant
N13P-GLP
Ada Lovelace
Architecture
Fermi 2.0
TSMC
Foundry
TSMC
5 nm
Process Size
28 nm
45.9 billion
Transistors
0.585 billion
379 mm²
Die Size
116 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
1.1
1.3
Vulkan
N/A
8.9
CUDA
2.1
6.8
Shader Model
5.1
