Home GPU Comparison NVIDIA GeForce RTX 3080 Mobile vs NVIDIA GeForce GTX 850M

NVIDIA GeForce RTX 3080 Mobile vs NVIDIA GeForce GTX 850M

We compared two Mobile platform GPUs: 8GB VRAM GeForce RTX 3080 Mobile and 2GB VRAM GeForce GTX 850M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3080 Mobile 's Advantages
Released 6 years and 10 months late
Boost Clock1545MHz
More VRAM (8GB vs 2GB)
Larger VRAM bandwidth (448.0GB/s vs 32.03GB/s)
5504 additional rendering cores
NVIDIA GeForce GTX 850M 's Advantages
Lower TDP (45W vs 115W)

Score

Benchmark

FP32 (float)
GeForce RTX 3080 Mobile +1543%
18.98 TFLOPS
GeForce GTX 850M
1.155 TFLOPS
OctaneBench
GeForce RTX 3080 Mobile +1750%
407
GeForce GTX 850M
22
VS

Graphics Card

Jan 2021
Release Date
Mar 2014
GeForce 30 Mobile
Generation
GeForce 800M
Mobile
Type
Mobile
PCIe 4.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

1110 MHz
Base Clock
-
1545 MHz
Boost Clock
-
1750 MHz
Memory Clock
1001 MHz

Memory

8GB
Memory Size
2GB
GDDR6
Memory Type
DDR3
256bit
Memory Bus
128bit
448.0GB/s
Bandwidth
32.03GB/s

Render Config

-
-
-
48
SM Count
-
6144
Shading Units
640
192
TMUs
40
96
ROPs
16
192
Tensor Cores
-
48
RT Cores
-
128 KB (per SM)
L1 Cache
64 KB (per SMM)
4 MB
L2 Cache
2 MB
-
-
-

Theoretical Performance

148.3 GPixel/s
Pixel Rate
14.43 GPixel/s
296.6 GTexel/s
Texture Rate
36.08 GTexel/s
18.98 TFLOPS
FP16 (half)
-
18.98 TFLOPS
FP32 (float)
1155 GFLOPS
296.6 GFLOPS
FP64 (double)
36.08 GFLOPS

Board Design

115W
TDP
45W
-
-
-
No outputs
Outputs
No outputs
None
Power Connectors
-

Graphics Processor

GA104
GPU Name
GM107
GA104-775-A1
GPU Variant
N15P-GT-A1
Ampere
Architecture
Maxwell
Samsung
Foundry
TSMC
8 nm
Process Size
28 nm
17.4 billion
Transistors
1.87 billion
392 mm²
Die Size
148 mm²

Graphics Features

12 Ultimate (12_2)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.3
Vulkan
1.3
8.6
CUDA
5.0
6.6
Shader Model
5.1

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