AMD Radeon R7 A260 vs NVIDIA GeForce 840M

VS

AMD Radeon R7 A260

NVIDIA GeForce 840M

We compared two Mobile platform GPUs: 1024MB VRAM Radeon R7 A260 and 2GB VRAM GeForce 840M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R7 A260 's Advantages

Larger VRAM bandwidth (57.60GB/s vs 16.02GB/s)

NVIDIA GeForce 840M 's Advantages

Boost Clock has increased by 15% (1124MHz vs 980MHz)

More VRAM (2GB vs 1024GB)

Score

Benchmark

FP32 (float)

Radeon R7 A260

0.752 TFLOPS

GeForce 840M +14%

0.863 TFLOPS

Radeon R7 A260

VS

GeForce 840M

Graphics Card

Jan 2014

Release Date

Mar 2014

All-In-One

Generation

GeForce 800M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

900 MHz

Base Clock

1029 MHz

980 MHz

Boost Clock

1124 MHz

900 MHz

Memory Clock

1001 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

64bit

57.60GB/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

7.840 GPixel/s

Pixel Rate

8.992 GPixel/s

23.52 GTexel/s

Texture Rate

17.98 GTexel/s

-

752.6 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 XT (216-0858020)

GPU Variant

N15S-GT

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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