AMD Radeon HD 7970 GHz Edition vs ATI Radeon HD 5450 PCIe x1

VS

AMD Radeon HD 7970 GHz Edition

ATI Radeon HD 5450 PCIe x1

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 GHz Edition and 512MB VRAM Radeon HD 5450 PCIe x1 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7970 GHz Edition 's Advantages

Released 2 years and 4 months late

Boost Clock1050MHz

More VRAM (3GB vs 512GB)

Larger VRAM bandwidth (288.0GB/s vs 8.000GB/s)

1968 additional rendering cores

ATI Radeon HD 5450 PCIe x1 's Advantages

Lower TDP (19W vs 300W)

Score

Benchmark

FP32 (float)

Radeon HD 7970 GHz Edition +4035%

4.301 TFLOPS

Radeon HD 5450 PCIe x1

0.104 TFLOPS

Radeon HD 7970 GHz Edition

VS

Radeon HD 5450 PCIe x1

Graphics Card

Jun 2012

Release Date

Feb 2010

Southern Islands

Generation

Evergreen

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x1

Clock Speeds

1000 MHz

Base Clock

-

1050 MHz

Boost Clock

-

1500 MHz

Memory Clock

500 MHz

Memory

3GB

Memory Size

512MB

GDDR5

Memory Type

DDR3

384bit

Memory Bus

64bit

288.0GB/s

Bandwidth

8.000GB/s

Render Config

32

Compute Units

2

-

2048

Shading Units

80

128

TMUs

8

32

ROPs

4

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

768 KB

L2 Cache

128 KB

-

Theoretical Performance

33.60 GPixel/s

Pixel Rate

2.600 GPixel/s

134.4 GTexel/s

Texture Rate

5.200 GTexel/s

-

4.301 TFLOPS

FP32 (float)

104.0 GFLOPS

1075 GFLOPS

FP64 (double)

-

Board Design

300W

TDP

19W

700 W

Suggested PSU

200 W

1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin + 1x 8-pin

Power Connectors

-

Graphics Processor

Tahiti

GPU Name

Cedar

Tahiti XT2 (215-0821065)

GPU Variant

Cedar PRO

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

4.313 billion

Transistors

0.292 billion

352 mm²

Die Size

59 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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