NVIDIA GeForce RTX 4090 Mobile vs NVIDIA GeForce GTX 870M

VS

NVIDIA GeForce RTX 4090 Mobile NVIDIA GeForce GTX 870M

We compared two Mobile platform GPUs: 16GB VRAM GeForce RTX 4090 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 4090 Mobile 's Advantages

Released 8 years and 10 months late

Boost Clock has increased by 75% (1695MHz vs 967MHz)

More VRAM (16GB vs 3GB)

Larger VRAM bandwidth (576.0GB/s vs 120.0GB/s)

8384 additional rendering cores

NVIDIA GeForce GTX 870M 's Advantages

Lower TDP (100W vs 120W)

Score

Benchmark

FP32 (float)

GeForce RTX 4090 Mobile +1168%

32.98 TFLOPS

GeForce GTX 870M

2.599 TFLOPS

GeForce RTX 4090 Mobile

VS

GeForce GTX 870M

Graphics Card

Jan 2023

Release Date

Mar 2014

GeForce 40 Mobile

Generation

GeForce 800M

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

1335 MHz

Base Clock

941 MHz

1695 MHz

Boost Clock

967 MHz

2250 MHz

Memory Clock

1250 MHz

Memory

16GB

Memory Size

3GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

192bit

576.0GB/s

Bandwidth

120.0GB/s

Render Config

76

SM Count

-

Compute Units

-

9728

Shading Units

1344

304

TMUs

112

ROPs

24

304

Tensor Cores

-

76

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per SMX)

64 MB

L2 Cache

384 KB

Theoretical Performance

189.8 GPixel/s

Pixel Rate

27.08 GPixel/s

515.3 GTexel/s

Texture Rate

108.3 GTexel/s

32.98 TFLOPS

FP16 (half)

-

32.98 TFLOPS

FP32 (float)

2.599 TFLOPS

515.3 GFLOPS

FP64 (double)

108.3 GFLOPS

Graphics Processor

AD103

GPU Name

GK104

GN21-X11

GPU Variant

N15E-GT-A2

Ada Lovelace

Architecture

Kepler

TSMC

Foundry

TSMC

4 nm

Process Size

28 nm

45.9 billion

Transistors

3.54 billion

379 mm²

Die Size

294 mm²

Board Design

120W

TDP

100W

-

Suggested PSU

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

None

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

8.9

CUDA

3.0

6.7

Shader Model

5.1

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