NVIDIA GeForce GTX 870M vs NVIDIA GeForce 8400M GT

VS

NVIDIA GeForce GTX 870M NVIDIA GeForce 8400M GT

We compared two Mobile platform GPUs: 3GB VRAM GeForce GTX 870M and 512MB VRAM GeForce 8400M GT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 870M 's Advantages

Released 6 years and 10 months late

Boost Clock967MHz

Larger VRAM bandwidth (120.0GB/s vs 19.20GB/s)

1328 additional rendering cores

NVIDIA GeForce 8400M GT 's Advantages

Lower TDP (14W vs 100W)

Score

Benchmark

FP32 (float)

GeForce GTX 870M +8862%

2.599 TFLOPS

GeForce 8400M GT

0.029 TFLOPS

GeForce GTX 870M

VS

GeForce 8400M GT

Graphics Card

Mar 2014

Release Date

May 2007

GeForce 800M

Generation

GeForce 8M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 1.0 x16

Clock Speeds

941 MHz

Base Clock

-

967 MHz

Boost Clock

-

1250 MHz

Memory Clock

600 MHz

Memory

3GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

192bit

Memory Bus

128bit

120.0GB/s

Bandwidth

19.20GB/s

Render Config

-

SM Count

2

-

Compute Units

-

1344

Shading Units

16

112

TMUs

8

24

ROPs

4

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

-

384 KB

L2 Cache

32 KB

Theoretical Performance

27.08 GPixel/s

Pixel Rate

1.800 GPixel/s

108.3 GTexel/s

Texture Rate

3.600 GTexel/s

-

FP16 (half)

-

2.599 TFLOPS

FP32 (float)

28.80 GFLOPS

108.3 GFLOPS

FP64 (double)

-

Graphics Processor

GK104

GPU Name

G86

N15E-GT-A2

GPU Variant

G86-603-A2

Kepler

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

80 nm

3.54 billion

Transistors

0.21 billion

294 mm²

Die Size

127 mm²

Board Design

100W

TDP

14W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Features

12 (11_0)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

3.0

OpenCL

1.1

Vulkan

N/A

3.0

CUDA

1.1

5.1

Shader Model

4.0

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