AMD Radeon R5 A255 vs NVIDIA GeForce GT 740A

VS

AMD Radeon R5 A255

NVIDIA GeForce GT 740A

We compared two Mobile platform GPUs: 1024MB VRAM Radeon R5 A255 and 2GB VRAM GeForce GT 740A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R5 A255 's Advantages

Boost Clock940MHz

Larger VRAM bandwidth (64.00GB/s vs 14.40GB/s)

NVIDIA GeForce GT 740A 's Advantages

More VRAM (2GB vs 1024GB)

Score

Benchmark

FP32 (float)

Radeon R5 A255

0.721 TFLOPS

GeForce GT 740A +4%

0.753 TFLOPS

Radeon R5 A255

VS

GeForce GT 740A

Graphics Card

Jan 2014

Release Date

Aug 2013

All-In-One

Generation

GeForce 700A

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

925 MHz

Base Clock

-

940 MHz

Boost Clock

-

1000 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

64bit

64.00GB/s

Bandwidth

14.40GB/s

Render Config

6

Compute Units

-

384

Shading Units

384

24

TMUs

32

8

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

7.520 GPixel/s

Pixel Rate

7.840 GPixel/s

22.56 GTexel/s

Texture Rate

31.36 GTexel/s

-

721.9 GFLOPS

FP32 (float)

752.6 GFLOPS

-

FP64 (double)

31.36 GFLOPS

Board Design

Unknown

TDP

33W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Topaz

GPU Name

GK208

Topaz PRO (216-0858030)

GPU Variant

GT 740M

GCN 3.0

Architecture

Kepler 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.55 billion

Transistors

1.02 billion

125 mm²

Die Size

87 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.2.170

Vulkan

1.1

-

CUDA

3.5

6.5

Shader Model

5.1

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