AMD Radeon HD 7970 X2 vs AMD Radeon HD 7470 OEM

VS

AMD Radeon HD 7970 X2 AMD Radeon HD 7470 OEM

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 X2 and 1024MB VRAM Radeon HD 7470 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7970 X2 's Advantages

Released 7 months late

More VRAM (3GB vs 1GB)

Larger VRAM bandwidth (264.0GB/s vs 28.80GB/s)

1888 additional rendering cores

AMD Radeon HD 7470 OEM 's Advantages

Lower TDP (27W vs 500W)

Score

Benchmark

FP32 (float)

Radeon HD 7970 X2 +1478%

3.789 TFLOPS

Radeon HD 7470 OEM

0.24 TFLOPS

Radeon HD 7970 X2

VS

Radeon HD 7470 OEM

Graphics Card

Aug 2012

Release Date

Jan 2012

Southern Islands

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1375 MHz

Memory Clock

900 MHz

Memory

3GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

64bit

264.0GB/s

Bandwidth

28.80GB/s

Render Config

-

SM Count

-

32

Compute Units

2

2048

Shading Units

160

128

TMUs

8

32

ROPs

4

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

768 KB

L2 Cache

128 KB

Theoretical Performance

29.60 GPixel/s

Pixel Rate

3.000 GPixel/s

118.4 GTexel/s

Texture Rate

6.000 GTexel/s

-

FP16 (half)

-

3.789 TFLOPS

FP32 (float)

240.0 GFLOPS

947.2 GFLOPS

FP64 (double)

-

Graphics Processor

New Zealand

GPU Name

Caicos

-

GPU Variant

Khalidster

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

Board Design

500W

TDP

27W

900 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x DisplayPort 1.1

3x 8-pin

Power Connectors

None

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.2

OpenCL

1.2

Vulkan

N/A

-

CUDA

-

5.1

Shader Model

5.0

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