NVIDIA GeForce RTX 3080 Mobile vs NVIDIA GeForce GTX 850A

VS

NVIDIA GeForce RTX 3080 Mobile

NVIDIA GeForce GTX 850A

We compared two Mobile platform GPUs: 8GB VRAM GeForce RTX 3080 Mobile and 2GB VRAM GeForce GTX 850A 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 Clock has increased by 65% (1545MHz vs 936MHz)

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (448.0GB/s vs 28.80GB/s)

5504 additional rendering cores

NVIDIA GeForce GTX 850A 's Advantages

Lower TDP (45W vs 115W)

Score

Benchmark

FP32 (float)

GeForce RTX 3080 Mobile +1484%

18.98 TFLOPS

GeForce GTX 850A

1.198 TFLOPS

GeForce RTX 3080 Mobile

VS

GeForce GTX 850A

Graphics Card

Jan 2021

Release Date

Mar 2014

GeForce 30 Mobile

Generation

GeForce 800A

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1110 MHz

Base Clock

902 MHz

1545 MHz

Boost Clock

936 MHz

1750 MHz

Memory Clock

900 MHz

Memory

8GB

Memory Size

2GB

GDDR6

Memory Type

DDR3

256bit

Memory Bus

128bit

448.0GB/s

Bandwidth

28.80GB/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

14.98 GPixel/s

296.6 GTexel/s

Texture Rate

37.44 GTexel/s

18.98 TFLOPS

FP16 (half)

-

18.98 TFLOPS

FP32 (float)

1198 GFLOPS

296.6 GFLOPS

FP64 (double)

37.44 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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