NVIDIA GeForce 820M vs NVIDIA GeForce RTX 4080 Mobile
We compared two Mobile platform GPUs: 2GB VRAM GeForce 820M and 12GB VRAM GeForce RTX 4080 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce 820M 's Advantages
Lower TDP (45W vs 110W)
NVIDIA GeForce RTX 4080 Mobile 's Advantages
Released 7 years and 10 months late
Boost Clock1665MHz
More VRAM (12GB vs 2GB)
Larger VRAM bandwidth (432.0GB/s vs 28.83GB/s)
7040 additional rendering cores
Score
Benchmark
FP32 (float)
GeForce 820M
0.622 TFLOPS
GeForce RTX 4080 Mobile
+3874%
24.72 TFLOPS
3DMark Time Spy
GeForce 820M
192
GeForce RTX 4080 Mobile
+9730%
18875
Graphics Card
Mar 2015
Release Date
Jan 2023
GeForce 800M
Generation
GeForce 40 Mobile
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
PCIe 4.0 x16
Clock Speeds
-
Base Clock
1290 MHz
-
Boost Clock
1665 MHz
901 MHz
Memory Clock
2250 MHz
Memory
2GB
Memory Size
12GB
DDR3
Memory Type
GDDR6
128bit
Memory Bus
192bit
28.83GB/s
Bandwidth
432.0GB/s
Render Config
-
-
-
-
SM Count
58
384
Shading Units
7424
32
TMUs
232
16
ROPs
80
-
Tensor Cores
232
-
RT Cores
58
16 KB (per SMX)
L1 Cache
128 KB (per SM)
256 KB
L2 Cache
48 MB
-
-
-
Theoretical Performance
6.480 GPixel/s
Pixel Rate
133.2 GPixel/s
25.92 GTexel/s
Texture Rate
386.3 GTexel/s
-
FP16 (half)
24.72 TFLOPS
622.1 GFLOPS
FP32 (float)
24.72 TFLOPS
25.92 GFLOPS
FP64 (double)
386.3 GFLOPS
Board Design
45W
TDP
110W
-
-
-
No outputs
Outputs
Portable Device Dependent
-
Power Connectors
None
Graphics Processor
GK107
GPU Name
AD104
-
GPU Variant
GN21-X9
Kepler
Architecture
Ada Lovelace
TSMC
Foundry
TSMC
28 nm
Process Size
4 nm
1.27 billion
Transistors
35.8 billion
118 mm²
Die Size
295 mm²
Graphics Features
12 (11_0)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.1
Vulkan
1.3
3.0
CUDA
8.9
5.1
Shader Model
6.7
