NVIDIA GeForce 840A vs AMD Radeon R5 A240

VS

NVIDIA GeForce 840A

AMD Radeon R5 A240

We compared two Mobile platform GPUs: 2GB VRAM GeForce 840A and 1024MB VRAM Radeon R5 A240 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 840A 's Advantages

Boost Clock1124MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (16.02GB/s vs 14.40GB/s)

64 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 840A +30%

0.863 TFLOPS

Radeon R5 A240

0.659 TFLOPS

GeForce 840A

VS

Radeon R5 A240

Graphics Card

Mar 2014

Release Date

Jan 2014

GeForce 800A

Generation

All-In-One

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

1029 MHz

Base Clock

-

1124 MHz

Boost Clock

-

1001 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

1024MB

DDR3

Memory Type

DDR3

64bit

Memory Bus

64bit

16.02GB/s

Bandwidth

14.40GB/s

Render Config

-

Compute Units

5

-

384

Shading Units

320

16

TMUs

20

8

ROPs

8

-

64 KB (per SMM)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

128 KB

-

Theoretical Performance

8.992 GPixel/s

Pixel Rate

8.240 GPixel/s

17.98 GTexel/s

Texture Rate

20.60 GTexel/s

-

863.2 GFLOPS

FP32 (float)

659.2 GFLOPS

26.98 GFLOPS

FP64 (double)

-

Board Design

33W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Graphics Processor

GM108

GPU Name

Jet

-

GPU Variant

Jet XT

Maxwell

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

Unknown

Transistors

0.69 billion

Unknown

Die Size

56 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

2.1 (1.2)

1.3

Vulkan

1.2.170

5.0

CUDA

-

5.1

Shader Model

6.5 (5.1)

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