NVIDIA GeForce GTX 870M vs NVIDIA GeForce 405M

VS

NVIDIA GeForce GTX 870M

NVIDIA GeForce 405M

We compared two Mobile platform GPUs: 3GB VRAM GeForce GTX 870M and 512MB VRAM GeForce 405M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 870M 's Advantages

Released 3 years and 2 months late

Boost Clock967MHz

More VRAM (3GB vs 512GB)

Larger VRAM bandwidth (120.0GB/s vs 12.80GB/s)

1328 additional rendering cores

NVIDIA GeForce 405M 's Advantages

Lower TDP (14W vs 100W)

Score

Benchmark

FP32 (float)

GeForce GTX 870M +6564%

2.599 TFLOPS

GeForce 405M

0.039 TFLOPS

GeForce GTX 870M

VS

GeForce 405M

Graphics Card

Mar 2014

Release Date

Jan 2011

GeForce 800M

Generation

GeForce 400M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

941 MHz

Base Clock

-

967 MHz

Boost Clock

-

1250 MHz

Memory Clock

800 MHz

Memory

3GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

192bit

Memory Bus

64bit

120.0GB/s

Bandwidth

12.80GB/s

Render Config

-

SM Count

2

1344

Shading Units

16

112

TMUs

8

24

ROPs

4

-

16 KB (per SMX)

L1 Cache

-

384 KB

L2 Cache

32 KB

-

Theoretical Performance

27.08 GPixel/s

Pixel Rate

2.424 GPixel/s

108.3 GTexel/s

Texture Rate

4.848 GTexel/s

-

2.599 TFLOPS

FP32 (float)

38.78 GFLOPS

108.3 GFLOPS

FP64 (double)

-

Board Design

100W

TDP

14W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

GK104

GPU Name

GT218

N15E-GT-A2

GPU Variant

-

Kepler

Architecture

Tesla 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

3.54 billion

Transistors

0.26 billion

294 mm²

Die Size

57 mm²

Graphics Features

12 (11_0)

DirectX

11.1 (10_1)

4.6

OpenGL

3.3

3.0

OpenCL

1.1

Vulkan

N/A

3.0

CUDA

1.2

5.1

Shader Model

4.1

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