NVIDIA GeForce RTX 5080 Mobile vs NVIDIA GeForce GTX 870M

VS

NVIDIA GeForce RTX 5080 Mobile

NVIDIA GeForce GTX 870M

We compared two Mobile platform GPUs: 16GB VRAM GeForce RTX 5080 Mobile 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 5080 Mobile 's Advantages

Released 10 years and 10 months late

Boost Clock has increased by 107% (2000MHz vs 967MHz)

More VRAM (16GB vs 3GB)

Larger VRAM bandwidth (1.01TB/s vs 120.0GB/s)

6848 additional rendering cores

NVIDIA GeForce GTX 870M 's Advantages

Lower TDP (100W vs 175W)

Score

Benchmark

FP32 (float)

GeForce RTX 5080 Mobile +1160%

32.77 TFLOPS

GeForce GTX 870M

2.599 TFLOPS

GeForce RTX 5080 Mobile

VS

GeForce GTX 870M

Graphics Card

Jan 2025

Release Date

Mar 2014

GeForce 50 Mobile

Generation

GeForce 800M

Mobile

Type

Mobile

PCIe 5.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

1500 MHz

Base Clock

941 MHz

2000 MHz

Boost Clock

967 MHz

2500 MHz

Memory Clock

1250 MHz

Memory

16GB

Memory Size

3GB

GDDR7

Memory Type

GDDR5

256bit

Memory Bus

192bit

1.01TB/s

Bandwidth

120.0GB/s

Render Config

-

64

SM Count

-

8192

Shading Units

1344

256

TMUs

112

96

ROPs

24

256

Tensor Cores

-

64

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per SMX)

64 MB

L2 Cache

384 KB

-

Theoretical Performance

192.0 GPixel/s

Pixel Rate

27.08 GPixel/s

512.0 GTexel/s

Texture Rate

108.3 GTexel/s

32.77 TFLOPS

FP16 (half)

-

32.77 TFLOPS

FP32 (float)

2.599 TFLOPS

512.0 GFLOPS

FP64 (double)

108.3 GFLOPS

Board Design

175W

TDP

100W

550 W

Suggested PSU

-

1x HDMI 2.13x DisplayPort 1.4a

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

GB203

GPU Name

GK104

-

GPU Variant

N15E-GT-A2

Blackwell 2.0

Architecture

Kepler

TSMC

Foundry

TSMC

4 nm

Process Size

28 nm

Unknown

Transistors

3.54 billion

377 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

10.1

CUDA

3.0

6.8

Shader Model

5.1

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