AMD Radeon HD 7970 GHz Edition vs AMD Radeon RX 480

VS

AMD Radeon HD 7970 GHz Edition

AMD Radeon RX 480

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 GHz Edition and 8GB VRAM Radeon RX 480 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

Larger VRAM bandwidth (288.0GB/s vs 256.0GB/s)

AMD Radeon RX 480 's Advantages

Released 4 years late

Boost Clock has increased by 21% (1266MHz vs 1050MHz)

More VRAM (8GB vs 3GB)

256 additional rendering cores

Lower TDP (150W vs 300W)

Score

Benchmark

FP32 (float)

Radeon HD 7970 GHz Edition

4.301 TFLOPS

Radeon RX 480 +35%

5.834 TFLOPS

Radeon HD 7970 GHz Edition

VS

Radeon RX 480

Graphics Card

Jun 2012

Release Date

Jun 2016

Southern Islands

Generation

Arctic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1000 MHz

Base Clock

1120 MHz

1050 MHz

Boost Clock

1266 MHz

1500 MHz

Memory Clock

2000 MHz

Memory

3GB

Memory Size

8GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

256bit

288.0GB/s

Bandwidth

256.0GB/s

Render Config

32

Compute Units

36

-

2048

Shading Units

2304

128

TMUs

144

32

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

2 MB

-

Theoretical Performance

33.60 GPixel/s

Pixel Rate

40.51 GPixel/s

134.4 GTexel/s

Texture Rate

182.3 GTexel/s

-

FP16 (half)

5.834 TFLOPS

4.301 TFLOPS

FP32 (float)

5.834 TFLOPS

1075 GFLOPS

FP64 (double)

364.6 GFLOPS

Board Design

300W

TDP

150W

700 W

Suggested PSU

450 W

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

Outputs

1x HDMI 2.0b 3x DisplayPort 1.4a

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Tahiti

GPU Name

Ellesmere

Tahiti XT2 (215-0821065)

GPU Variant

Polaris 10 XT (215-0876184)

GCN 1.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

4.313 billion

Transistors

5.7 billion

352 mm²

Die Size

232 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.2

OpenCL

2.1

1.2

Vulkan

1.2

-

5.1

Shader Model

6.4

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