NVIDIA GeForce 840A vs AMD Radeon HD 7550M

VS

NVIDIA GeForce 840A

AMD Radeon HD 7550M

We compared two Mobile platform GPUs: 2GB VRAM GeForce 840A and 1024MB VRAM Radeon HD 7550M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 840A 's Advantages

Released 2 years and 2 months late

Boost Clock has increased by 104% (1124MHz vs 550MHz)

More VRAM (2GB vs 1024GB)

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

AMD Radeon HD 7550M 's Advantages

16 additional rendering cores

Lower TDP (14W vs 33W)

Score

Benchmark

FP32 (float)

GeForce 840A +96%

0.863 TFLOPS

Radeon HD 7550M

0.44 TFLOPS

GeForce 840A

VS

Radeon HD 7550M

Graphics Card

Mar 2014

Release Date

Jan 2012

GeForce 800A

Generation

London

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

1029 MHz

Base Clock

450 MHz

1124 MHz

Boost Clock

550 MHz

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

400

16

TMUs

20

8

ROPs

8

-

64 KB (per SMM)

L1 Cache

-

1024 KB

L2 Cache

-

Theoretical Performance

8.992 GPixel/s

Pixel Rate

4.400 GPixel/s

17.98 GTexel/s

Texture Rate

11.00 GTexel/s

-

863.2 GFLOPS

FP32 (float)

440.0 GFLOPS

26.98 GFLOPS

FP64 (double)

-

Board Design

33W

TDP

14W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GM108

GPU Name

Thames

-

GPU Variant

Thames LP

Maxwell

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

Unknown

Transistors

0.716 billion

Unknown

Die Size

104 mm²

Graphics Features

12 (11_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.3

Vulkan

N/A

5.0

CUDA

-

5.1

Shader Model

5.0

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