AMD Radeon HD 7450A vs NVIDIA GeForce GT 820M

VS

AMD Radeon HD 7450A

NVIDIA GeForce GT 820M

We compared two Mobile platform GPUs: 512MB VRAM Radeon HD 7450A and 1024MB VRAM GeForce GT 820M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7450A 's Advantages

64 additional rendering cores

NVIDIA GeForce GT 820M 's Advantages

Released 1 years and 10 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (14.40GB/s vs 12.80GB/s)

Lower TDP (15W vs 25W)

Score

Benchmark

FP32 (float)

Radeon HD 7450A

0.2 TFLOPS

GeForce GT 820M +49%

0.298 TFLOPS

Radeon HD 7450A

VS

GeForce GT 820M

Graphics Card

Jan 2012

Release Date

Nov 2013

All-In-One

Generation

GeForce 800M

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

800 MHz

Memory Clock

900 MHz

Memory

512MB

Memory Size

1024MB

GDDR3

Memory Type

DDR3

64bit

Memory Bus

64bit

12.80GB/s

Bandwidth

14.40GB/s

Render Config

2

Compute Units

-

SM Count

2

160

Shading Units

96

8

TMUs

16

4

ROPs

8

-

8 KB (per CU)

L1 Cache

64 KB (per SM)

128 KB

L2 Cache

128 KB

-

Theoretical Performance

2.500 GPixel/s

Pixel Rate

3.100 GPixel/s

5.000 GTexel/s

Texture Rate

12.40 GTexel/s

-

200.0 GFLOPS

FP32 (float)

297.6 GFLOPS

-

FP64 (double)

24.80 GFLOPS

Board Design

25W

TDP

15W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Caicos

GPU Name

GF117

-

GPU Variant

N15V-GM

TeraScale 2

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.37 billion

Transistors

0.585 billion

67 mm²

Die Size

116 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

2.1

5.0

Shader Model

5.1

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