AMD Radeon R5 M420 vs NVIDIA GeForce 845M

VS

AMD Radeon R5 M420

NVIDIA GeForce 845M

We compared two Mobile platform GPUs: 4GB VRAM Radeon R5 M420 and 2GB VRAM GeForce 845M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R5 M420 's Advantages

Released 9 months late

More VRAM (4GB vs 2GB)

NVIDIA GeForce 845M 's Advantages

Boost Clock has increased by 38% (1176MHz vs 850MHz)

Larger VRAM bandwidth (40.10GB/s vs 16.00GB/s)

64 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R5 M420

0.544 TFLOPS

GeForce 845M +65%

0.903 TFLOPS

Radeon R5 M420

VS

GeForce 845M

Graphics Card

May 2016

Release Date

Aug 2015

Gem System

Generation

GeForce 800M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

780 MHz

Base Clock

1071 MHz

850 MHz

Boost Clock

1176 MHz

1000 MHz

Memory Clock

1253 MHz

Memory

4GB

Memory Size

2GB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

64bit

16.00GB/s

Bandwidth

40.10GB/s

Render Config

5

Compute Units

-

320

Shading Units

384

20

TMUs

32

8

ROPs

16

-

16 KB (per CU)

L1 Cache

64 KB (per SMM)

128 KB

L2 Cache

1024 KB

-

Theoretical Performance

6.800 GPixel/s

Pixel Rate

18.82 GPixel/s

17.00 GTexel/s

Texture Rate

37.63 GTexel/s

-

544.0 GFLOPS

FP32 (float)

903.2 GFLOPS

34.00 GFLOPS

FP64 (double)

28.22 GFLOPS

Board Design

Unknown

TDP

33W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Jet

GPU Name

GM108

Jet PRO (216-0856040)

GPU Variant

-

GCN 1.0

Architecture

Maxwell

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

0.69 billion

Transistors

Unknown

56 mm²

Die Size

Unknown

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1 (1.2)

OpenCL

3.0

1.2.170

Vulkan

1.3

-

CUDA

5.0

6.5 (5.1)

Shader Model

5.1

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