AMD Radeon R9 M385X vs NVIDIA GeForce 940A

VS

AMD Radeon R9 M385X

NVIDIA GeForce 940A

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M385X and 1024MB VRAM GeForce 940A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M385X 's Advantages

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (76.80GB/s vs 16.02GB/s)

512 additional rendering cores

NVIDIA GeForce 940A 's Advantages

Boost Clock has increased by 2% (1124MHz vs 1100MHz)

Score

Benchmark

FP32 (float)

Radeon R9 M385X +128%

1.971 TFLOPS

GeForce 940A

0.863 TFLOPS

Radeon R9 M385X

VS

GeForce 940A

Graphics Card

May 2015

Release Date

Mar 2015

Gem System

Generation

GeForce 900A

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

1000 MHz

Base Clock

1029 MHz

1100 MHz

Boost Clock

1124 MHz

1200 MHz

Memory Clock

1001 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

64bit

76.80GB/s

Bandwidth

16.02GB/s

Render Config

14

Compute Units

-

896

Shading Units

384

56

TMUs

16

ROPs

8

-

16 KB (per CU)

L1 Cache

64 KB (per SMM)

256 KB

L2 Cache

1024 KB

-

Theoretical Performance

17.60 GPixel/s

Pixel Rate

8.992 GPixel/s

61.60 GTexel/s

Texture Rate

17.98 GTexel/s

-

1.971 TFLOPS

FP32 (float)

863.2 GFLOPS

123.2 GFLOPS

FP64 (double)

26.98 GFLOPS

Board Design

Unknown

TDP

33W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Strato

GPU Name

GM108

Strato XT

GPU Variant

-

GCN 2.0

Architecture

Maxwell

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.08 billion

Transistors

Unknown

160 mm²

Die Size

Unknown

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.2.170

Vulkan

1.3

-

CUDA

5.0

6.5

Shader Model

5.1

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