AMD Radeon HD 8970M vs AMD Radeon HD 7450M

VS

AMD Radeon HD 8970M

AMD Radeon HD 7450M

We compared two Mobile platform GPUs: 4GB VRAM Radeon HD 8970M and 1024MB VRAM Radeon HD 7450M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8970M 's Advantages

Released 1 years and 4 months late

Boost Clock900MHz

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (153.6GB/s vs 14.40GB/s)

1120 additional rendering cores

AMD Radeon HD 7450M 's Advantages

Lower TDP (7W vs 100W)

Score

Benchmark

FP32 (float)

Radeon HD 8970M +928%

2.304 TFLOPS

Radeon HD 7450M

0.224 TFLOPS

Radeon HD 8970M

VS

Radeon HD 7450M

Graphics Card

May 2013

Release Date

Jan 2012

Solar System

Generation

London

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

850 MHz

Base Clock

-

900 MHz

Boost Clock

-

1200 MHz

Memory Clock

900 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

64bit

153.6GB/s

Bandwidth

14.40GB/s

Render Config

20

Compute Units

2

-

1280

Shading Units

160

80

TMUs

8

32

ROPs

4

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

28.80 GPixel/s

Pixel Rate

2.800 GPixel/s

72.00 GTexel/s

Texture Rate

5.600 GTexel/s

-

2.304 TFLOPS

FP32 (float)

224.0 GFLOPS

144.0 GFLOPS

FP64 (double)

-

Board Design

100W

TDP

7W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Neptune

GPU Name

Seymour

Neptune XT (216-0847000)

GPU Variant

Seymour PRO

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.8 billion

Transistors

0.37 billion

212 mm²

Die Size

67 mm²

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.2

OpenCL

1.2

Vulkan

N/A

-

5.1

Shader Model

5.0

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