AMD Radeon HD 7970 GHz Edition vs AMD Radeon HD 8470 OEM

VS

AMD Radeon HD 7970 GHz Edition

AMD Radeon HD 8470 OEM

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 GHz Edition and 1024MB VRAM Radeon HD 8470 OEM 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

Boost Clock1050MHz

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (288.0GB/s vs 25.60GB/s)

1888 additional rendering cores

AMD Radeon HD 8470 OEM 's Advantages

Released 7 months late

Lower TDP (35W vs 300W)

Score

Benchmark

FP32 (float)

Radeon HD 7970 GHz Edition +1634%

4.301 TFLOPS

Radeon HD 8470 OEM

0.248 TFLOPS

Radeon HD 7970 GHz Edition

VS

Radeon HD 8470 OEM

Graphics Card

Jun 2012

Release Date

Jan 2013

Southern Islands

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1000 MHz

Base Clock

-

1050 MHz

Boost Clock

-

1500 MHz

Memory Clock

800 MHz

Memory

3GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

64bit

288.0GB/s

Bandwidth

25.60GB/s

Render Config

32

Compute Units

2

-

2048

Shading Units

160

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

3.100 GPixel/s

134.4 GTexel/s

Texture Rate

6.200 GTexel/s

-

4.301 TFLOPS

FP32 (float)

248.0 GFLOPS

1075 GFLOPS

FP64 (double)

-

Board Design

300W

TDP

35W

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 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

Tahiti

GPU Name

Caicos

Tahiti XT2 (215-0821065)

GPU Variant

Caicos XT (215-0804070)

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

4.313 billion

Transistors

0.37 billion

352 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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