NVIDIA GeForce 840M vs AMD Radeon HD 7450M

VS

NVIDIA GeForce 840M

AMD Radeon HD 7450M

We compared two Mobile platform GPUs: 2GB VRAM GeForce 840M and 1024MB VRAM Radeon HD 7450M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 840M 's Advantages

Released 2 years and 2 months late

Boost Clock1124MHz

More VRAM (2GB vs 1024GB)

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

224 additional rendering cores

AMD Radeon HD 7450M 's Advantages

Lower TDP (7W vs 33W)

Score

Benchmark

FP32 (float)

GeForce 840M +285%

0.863 TFLOPS

Radeon HD 7450M

0.224 TFLOPS

GeForce 840M

VS

Radeon HD 7450M

Graphics Card

Mar 2014

Release Date

Jan 2012

GeForce 800M

Generation

London

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

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

2

-

384

Shading Units

160

16

TMUs

8

ROPs

4

-

64 KB (per SMM)

L1 Cache

8 KB (per CU)

1024 KB

L2 Cache

128 KB

-

Theoretical Performance

8.992 GPixel/s

Pixel Rate

2.800 GPixel/s

17.98 GTexel/s

Texture Rate

5.600 GTexel/s

-

863.2 GFLOPS

FP32 (float)

224.0 GFLOPS

26.98 GFLOPS

FP64 (double)

-

Board Design

33W

TDP

7W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GM108

GPU Name

Seymour

N15S-GT

GPU Variant

Seymour PRO

Maxwell

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

Unknown

Transistors

0.37 billion

Unknown

Die Size

67 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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