NVIDIA GeForce GTX 850A vs AMD Radeon R9 M485X

VS

NVIDIA GeForce GTX 850A

AMD Radeon R9 M485X

We compared two Mobile platform GPUs: 2GB VRAM GeForce GTX 850A and 8GB VRAM Radeon R9 M485X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 850A 's Advantages

Boost Clock936MHz

Lower TDP (45W vs 250W)

AMD Radeon R9 M485X 's Advantages

Released 2 years and 2 months late

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (160.0GB/s vs 28.80GB/s)

1408 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 850A

1.198 TFLOPS

Radeon R9 M485X +147%

2.961 TFLOPS

GeForce GTX 850A

VS

Radeon R9 M485X

Graphics Card

Mar 2014

Release Date

May 2016

GeForce 800A

Generation

Crystal System

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

902 MHz

Base Clock

-

936 MHz

Boost Clock

-

900 MHz

Memory Clock

1250 MHz

Memory

2GB

Memory Size

8GB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

28.80GB/s

Bandwidth

160.0GB/s

Render Config

-

Compute Units

32

-

640

Shading Units

2048

40

TMUs

128

16

ROPs

32

-

64 KB (per SMM)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

512 KB

-

Theoretical Performance

14.98 GPixel/s

Pixel Rate

23.14 GPixel/s

37.44 GTexel/s

Texture Rate

92.54 GTexel/s

-

FP16 (half)

2.961 TFLOPS

1198 GFLOPS

FP32 (float)

2.961 TFLOPS

37.44 GFLOPS

FP64 (double)

185.1 GFLOPS

Board Design

45W

TDP

250W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

GM107

GPU Name

Amethyst

N15P-GT-A1

GPU Variant

Amethyst XT

Maxwell

Architecture

GCN 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.87 billion

Transistors

5 billion

148 mm²

Die Size

366 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.0

1.3

Vulkan

1.2

5.0

CUDA

-

5.1

Shader Model

6.3

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