NVIDIA GeForce 840M vs AMD Radeon R7 M445

VS

NVIDIA GeForce 840M

AMD Radeon R7 M445

We compared two Mobile platform GPUs: 2GB VRAM GeForce 840M and 4GB VRAM Radeon R7 M445 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 840M 's Advantages

Boost Clock has increased by 22% (1124MHz vs 920MHz)

64 additional rendering cores

AMD Radeon R7 M445 's Advantages

Released 2 years and 2 months late

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (32.00GB/s vs 16.02GB/s)

Score

Benchmark

FP32 (float)

GeForce 840M +46%

0.863 TFLOPS

Radeon R7 M445

0.588 TFLOPS

GeForce 840M

VS

Radeon R7 M445

Graphics Card

Mar 2014

Release Date

May 2016

GeForce 800M

Generation

Gem System

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

1029 MHz

Base Clock

780 MHz

1124 MHz

Boost Clock

920 MHz

1001 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

4GB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

64bit

16.02GB/s

Bandwidth

32.00GB/s

Render Config

-

Compute Units

5

-

384

Shading Units

320

16

TMUs

20

8

ROPs

8

-

64 KB (per SMM)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

128 KB

-

Theoretical Performance

8.992 GPixel/s

Pixel Rate

7.360 GPixel/s

17.98 GTexel/s

Texture Rate

18.40 GTexel/s

-

FP16 (half)

588.8 GFLOPS

863.2 GFLOPS

FP32 (float)

588.8 GFLOPS

26.98 GFLOPS

FP64 (double)

36.80 GFLOPS

Board Design

33W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Graphics Processor

GM108

GPU Name

Meso

N15S-GT

GPU Variant

Meso PRO (216-0864032)

Maxwell

Architecture

GCN 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

Unknown

Transistors

1.55 billion

Unknown

Die Size

125 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.3

Vulkan

1.2.170

5.0

CUDA

-

5.1

Shader Model

6.5

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