AMD Radeon R5 A255 vs NVIDIA GeForce 940A

VS

AMD Radeon R5 A255

NVIDIA GeForce 940A

We compared two Mobile platform GPUs: 1024MB VRAM Radeon R5 A255 and 1024MB VRAM GeForce 940A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R5 A255 's Advantages

Larger VRAM bandwidth (64.00GB/s vs 16.02GB/s)

NVIDIA GeForce 940A 's Advantages

Released 1 years and 2 months late

Boost Clock has increased by 20% (1124MHz vs 940MHz)

Score

Benchmark

FP32 (float)

Radeon R5 A255

0.721 TFLOPS

GeForce 940A +19%

0.863 TFLOPS

Radeon R5 A255

VS

GeForce 940A

Graphics Card

Jan 2014

Release Date

Mar 2015

All-In-One

Generation

GeForce 900A

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

925 MHz

Base Clock

1029 MHz

940 MHz

Boost Clock

1124 MHz

1000 MHz

Memory Clock

1001 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

64bit

64.00GB/s

Bandwidth

16.02GB/s

Render Config

6

Compute Units

-

384

Shading Units

384

24

TMUs

16

8

ROPs

8

-

16 KB (per CU)

L1 Cache

64 KB (per SMM)

256 KB

L2 Cache

1024 KB

-

Theoretical Performance

7.520 GPixel/s

Pixel Rate

8.992 GPixel/s

22.56 GTexel/s

Texture Rate

17.98 GTexel/s

-

721.9 GFLOPS

FP32 (float)

863.2 GFLOPS

-

FP64 (double)

26.98 GFLOPS

Board Design

Unknown

TDP

33W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Topaz

GPU Name

GM108

Topaz PRO (216-0858030)

GPU Variant

-

GCN 3.0

Architecture

Maxwell

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.55 billion

Transistors

Unknown

125 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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