NVIDIA GeForce GTX 1080 Mobile vs NVIDIA GeForce 845M

VS

NVIDIA GeForce GTX 1080 Mobile

NVIDIA GeForce 845M

We compared two Mobile platform GPUs: 8GB VRAM GeForce GTX 1080 Mobile and 2GB VRAM GeForce 845M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 1080 Mobile 's Advantages

Released 1 years late

Boost Clock has increased by 47% (1734MHz vs 1176MHz)

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (320.3GB/s vs 40.10GB/s)

2176 additional rendering cores

NVIDIA GeForce 845M 's Advantages

Lower TDP (33W vs 150W)

Score

Benchmark

FP32 (float)

GeForce GTX 1080 Mobile +883%

8.878 TFLOPS

GeForce 845M

0.903 TFLOPS

GeForce GTX 1080 Mobile

VS

GeForce 845M

Graphics Card

Aug 2016

Release Date

Aug 2015

GeForce 10 Mobile

Generation

GeForce 800M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

1556 MHz

Base Clock

1071 MHz

1734 MHz

Boost Clock

1176 MHz

1251 MHz

Memory Clock

1253 MHz

Memory

8GB

Memory Size

2GB

GDDR5X

Memory Type

GDDR5

256bit

Memory Bus

64bit

320.3GB/s

Bandwidth

40.10GB/s

Render Config

-

20

SM Count

-

2560

Shading Units

384

160

TMUs

32

64

ROPs

16

-

48 KB (per SM)

L1 Cache

64 KB (per SMM)

2 MB

L2 Cache

1024 KB

-

Theoretical Performance

111.0 GPixel/s

Pixel Rate

18.82 GPixel/s

277.4 GTexel/s

Texture Rate

37.63 GTexel/s

138.7 GFLOPS

FP16 (half)

-

8.878 TFLOPS

FP32 (float)

903.2 GFLOPS

277.4 GFLOPS

FP64 (double)

28.22 GFLOPS

Board Design

150W

TDP

33W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

GP104

GPU Name

GM108

N17E-G3-A1

GPU Variant

-

Pascal

Architecture

Maxwell

TSMC

Foundry

TSMC

16 nm

Process Size

28 nm

7.2 billion

Transistors

Unknown

314 mm²

Die Size

Unknown

Graphics Features

12 (12_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.3

6.1

CUDA

5.0

6.4

Shader Model

5.1

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