AMD Radeon HD 8870M vs AMD Radeon HD 6450A

VS

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8870M and 512MB VRAM Radeon HD 6450A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8870M 's Advantages

Released 2 years late

Boost Clock775MHz

Larger VRAM bandwidth (72.00GB/s vs 8.528GB/s)

480 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8870M +396%

0.992 TFLOPS

Radeon HD 6450A

0.2 TFLOPS

Radeon HD 8870M

VS

Radeon HD 6450A

Graphics Card

Apr 2013

Release Date

Apr 2011

Solar System

Generation

All-In-One

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-A (3.0)

Clock Speeds

725 MHz

Base Clock

-

775 MHz

Boost Clock

-

1125 MHz

Memory Clock

533 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

64bit

72.00GB/s

Bandwidth

8.528GB/s

Render Config

-

SM Count

-

10

Compute Units

2

640

Shading Units

160

40

TMUs

8

16

ROPs

4

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

128 KB

Theoretical Performance

12.40 GPixel/s

Pixel Rate

2.500 GPixel/s

31.00 GTexel/s

Texture Rate

5.000 GTexel/s

-

FP16 (half)

-

992.0 GFLOPS

FP32 (float)

200.0 GFLOPS

62.00 GFLOPS

FP64 (double)

-

Graphics Processor

Venus

GPU Name

Caicos

Venus XT (216-0846000)

GPU Variant

-

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.5 billion

Transistors

0.37 billion

123 mm²

Die Size

67 mm²

Board Design

Unknown

TDP

25W

-

Suggested PSU

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

-

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1 (1.2)

OpenCL

1.2

1.2.170

Vulkan

N/A

-

CUDA

-

6.5 (5.1)

Shader Model

5.0

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