NVIDIA GeForce 840A vs ATI Mobility Radeon HD 2400

VS

NVIDIA GeForce 840A

ATI Mobility Radeon HD 2400

We compared two Mobile platform GPUs: 2GB VRAM GeForce 840A and 256MB VRAM Mobility Radeon HD 2400 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 840A 's Advantages

Released 6 years and 10 months late

Boost Clock1124MHz

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (16.02GB/s vs 6.400GB/s)

344 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 840A +2297%

0.863 TFLOPS

Mobility Radeon HD 2400

0.036 TFLOPS

GeForce 840A

VS

Mobility Radeon HD 2400

Graphics Card

Mar 2014

Release Date

May 2007

GeForce 800A

Generation

M7x

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 1.0 x16

Clock Speeds

1029 MHz

Base Clock

-

1124 MHz

Boost Clock

-

1001 MHz

Memory Clock

400 MHz

Memory

2GB

Memory Size

256MB

DDR3

Memory Type

DDR2

64bit

Memory Bus

64bit

16.02GB/s

Bandwidth

6.400GB/s

Render Config

-

Compute Units

2

-

384

Shading Units

40

16

TMUs

4

8

ROPs

4

-

64 KB (per SMM)

L1 Cache

-

1024 KB

L2 Cache

32 KB

-

Theoretical Performance

8.992 GPixel/s

Pixel Rate

1.800 GPixel/s

17.98 GTexel/s

Texture Rate

1.800 GTexel/s

-

863.2 GFLOPS

FP32 (float)

36.00 GFLOPS

26.98 GFLOPS

FP64 (double)

-

Board Design

33W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Graphics Processor

GM108

GPU Name

M72

-

GPU Variant

M72-S (216QSAKA12FG)

Maxwell

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

65 nm

Unknown

Transistors

0.18 billion

Unknown

Die Size

85 mm²

Graphics Features

12 (11_0)

DirectX

10.0 (10_0)

4.6

OpenGL

3.3

3.0

OpenCL

N/A

1.3

Vulkan

N/A

5.0

CUDA

-

5.1

Shader Model

4.0

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