AMD Radeon R5 M420 vs NVIDIA GeForce GTX 850A

VS

AMD Radeon R5 M420

NVIDIA GeForce GTX 850A

We compared two Mobile platform GPUs: 4GB VRAM Radeon R5 M420 and 2GB VRAM GeForce GTX 850A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R5 M420 's Advantages

Released 2 years and 2 months late

More VRAM (4GB vs 2GB)

NVIDIA GeForce GTX 850A 's Advantages

Boost Clock has increased by 10% (936MHz vs 850MHz)

Larger VRAM bandwidth (28.80GB/s vs 16.00GB/s)

320 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R5 M420

0.544 TFLOPS

GeForce GTX 850A +120%

1.198 TFLOPS

Radeon R5 M420

VS

GeForce GTX 850A

Graphics Card

May 2016

Release Date

Mar 2014

Gem System

Generation

GeForce 800A

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

780 MHz

Base Clock

902 MHz

850 MHz

Boost Clock

936 MHz

1000 MHz

Memory Clock

900 MHz

Memory

4GB

Memory Size

2GB

DDR3

Memory Type

DDR3

64bit

Memory Bus

128bit

16.00GB/s

Bandwidth

28.80GB/s

Render Config

5

Compute Units

-

320

Shading Units

640

20

TMUs

40

8

ROPs

16

-

16 KB (per CU)

L1 Cache

64 KB (per SMM)

128 KB

L2 Cache

2 MB

-

Theoretical Performance

6.800 GPixel/s

Pixel Rate

14.98 GPixel/s

17.00 GTexel/s

Texture Rate

37.44 GTexel/s

-

544.0 GFLOPS

FP32 (float)

1198 GFLOPS

34.00 GFLOPS

FP64 (double)

37.44 GFLOPS

Board Design

Unknown

TDP

45W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Jet

GPU Name

GM107

Jet PRO (216-0856040)

GPU Variant

N15P-GT-A1

GCN 1.0

Architecture

Maxwell

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

0.69 billion

Transistors

1.87 billion

56 mm²

Die Size

148 mm²

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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