NVIDIA GeForce GT 820M vs NVIDIA GeForce RTX 5080 Mobile
We compared two Mobile platform GPUs: 1024MB VRAM GeForce GT 820M and 16GB VRAM GeForce RTX 5080 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GT 820M 's Advantages
Lower TDP (15W vs 80W)
NVIDIA GeForce RTX 5080 Mobile 's Advantages
Released 11 years and 5 months late
Boost Clock1500MHz
More VRAM (16GB vs 1024GB)
Larger VRAM bandwidth (896.0GB/s vs 14.40GB/s)
7584 additional rendering cores
Score
Benchmark
FP32 (float)
GeForce GT 820M
0.298 TFLOPS
GeForce RTX 5080 Mobile
+7631%
23.04 TFLOPS
Graphics Card
Nov 2013
Release Date
Apr 2025
GeForce 800M
Generation
GeForce 50 Mobile
Mobile
Type
Mobile
PCIe 2.0 x16
Bus Interface
PCIe 5.0 x16
Clock Speeds
-
Base Clock
975 MHz
-
Boost Clock
1500 MHz
900 MHz
Memory Clock
1750 MHz
Memory
1024MB
Memory Size
16GB
DDR3
Memory Type
GDDR7
64bit
Memory Bus
256bit
14.40GB/s
Bandwidth
896.0GB/s
Render Config
-
-
-
2
SM Count
60
96
Shading Units
7680
16
TMUs
240
8
ROPs
96
-
Tensor Cores
240
-
RT Cores
60
64 KB (per SM)
L1 Cache
128 KB (per SM)
128 KB
L2 Cache
64 MB
-
-
-
Theoretical Performance
3.100 GPixel/s
Pixel Rate
144.0 GPixel/s
12.40 GTexel/s
Texture Rate
360.0 GTexel/s
-
FP16 (half)
23.04 TFLOPS
297.6 GFLOPS
FP32 (float)
23.04 TFLOPS
24.80 GFLOPS
FP64 (double)
360.0 GFLOPS
Board Design
15W
TDP
80W
-
Suggested PSU
550 W
No outputs
Outputs
Portable Device Dependent
-
Power Connectors
None
Graphics Processor
GF117
GPU Name
GB203
N15V-GM
GPU Variant
-
Fermi 2.0
Architecture
Blackwell 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
5 nm
0.585 billion
Transistors
45.6 billion
116 mm²
Die Size
378 mm²
Graphics Features
12 (11_0)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
1.1
OpenCL
3.0
N/A
Vulkan
1.4
2.1
CUDA
12.0
5.1
Shader Model
6.8
