AMD Radeon HD 7970 vs AMD Radeon HD 7970 X2

VS

AMD Radeon HD 7970

AMD Radeon HD 7970 X2

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 and 3GB VRAM Radeon HD 7970 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7970 's Advantages

Lower TDP (250W vs 500W)

AMD Radeon HD 7970 X2 's Advantages

Released 8 months late

Score

Benchmark

FP32 (float)

Radeon HD 7970

3.789 TFLOPS

Radeon HD 7970 X2

3.789 TFLOPS

Radeon HD 7970

VS

Radeon HD 7970 X2

Graphics Card

Dec 2011

Release Date

Aug 2012

Southern Islands

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1375 MHz

Memory Clock

1375 MHz

Memory

3GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

384bit

264.0GB/s

Bandwidth

264.0GB/s

Render Config

32

Compute Units

32

-

2048

Shading Units

2048

128

TMUs

128

32

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

768 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

29.60 GPixel/s

118.4 GTexel/s

Texture Rate

118.4 GTexel/s

-

3.789 TFLOPS

FP32 (float)

3.789 TFLOPS

947.2 GFLOPS

FP64 (double)

947.2 GFLOPS

Board Design

250W

TDP

500W

600 W

Suggested PSU

900 W

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

Outputs

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

1x 6-pin + 1x 8-pin

Power Connectors

3x 8-pin

Graphics Processor

Tahiti

GPU Name

New Zealand

Tahiti XT (215-0821060)

GPU Variant

-

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

4.313 billion

352 mm²

Die Size

352 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.2

OpenCL

1.2

Vulkan

1.2

-

5.1

Shader Model

5.1

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