NVIDIA GeForce RTX 3080 Mobile 16 GB vs NVIDIA GeForce GTX 870M

VS

NVIDIA GeForce RTX 3080 Mobile 16 GB

NVIDIA GeForce GTX 870M

We compared two Mobile platform GPUs: 16GB VRAM GeForce RTX 3080 Mobile 16 GB and 3GB VRAM GeForce GTX 870M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3080 Mobile 16 GB 's Advantages

Released 6 years and 10 months late

Boost Clock has increased by 60% (1545MHz vs 967MHz)

More VRAM (16GB vs 3GB)

Larger VRAM bandwidth (448.0GB/s vs 120.0GB/s)

4800 additional rendering cores

NVIDIA GeForce GTX 870M 's Advantages

Lower TDP (100W vs 115W)

Score

Benchmark

FP32 (float)

GeForce RTX 3080 Mobile 16 GB +630%

18.98 TFLOPS

GeForce GTX 870M

2.599 TFLOPS

GeForce RTX 3080 Mobile 16 GB

VS

GeForce GTX 870M

Graphics Card

Jan 2021

Release Date

Mar 2014

GeForce 30 Mobile

Generation

GeForce 800M

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

1110 MHz

Base Clock

941 MHz

1545 MHz

Boost Clock

967 MHz

1750 MHz

Memory Clock

1250 MHz

Memory

16GB

Memory Size

3GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

192bit

448.0GB/s

Bandwidth

120.0GB/s

Render Config

-

48

SM Count

-

6144

Shading Units

1344

192

TMUs

112

96

ROPs

24

192

Tensor Cores

-

48

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per SMX)

4 MB

L2 Cache

384 KB

-

Theoretical Performance

148.3 GPixel/s

Pixel Rate

27.08 GPixel/s

296.6 GTexel/s

Texture Rate

108.3 GTexel/s

18.98 TFLOPS

FP16 (half)

-

18.98 TFLOPS

FP32 (float)

2.599 TFLOPS

296.6 GFLOPS

FP64 (double)

108.3 GFLOPS

Board Design

115W

TDP

100W

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

GA104

GPU Name

GK104

GA104-775-A1

GPU Variant

N15E-GT-A2

Ampere

Architecture

Kepler

Samsung

Foundry

TSMC

8 nm

Process Size

28 nm

17.4 billion

Transistors

3.54 billion

392 mm²

Die Size

294 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.1

8.6

CUDA

3.0

6.8

Shader Model

5.1

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