AMD Radeon HD 7970 X2 vs AMD Radeon R9 285X

VS

AMD Radeon HD 7970 X2 AMD Radeon R9 285X

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 X2 and 3GB VRAM Radeon R9 285X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 285X 's Advantages

Lower TDP (200W vs 500W)

Score

Benchmark

FP32 (float)

Radeon HD 7970 X2

3.789 TFLOPS

Radeon R9 285X +8%

4.104 TFLOPS

Radeon HD 7970 X2

VS

Radeon R9 285X

Graphics Card

Aug 2012

Release Date

Unknown

Southern Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

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

-

SM Count

-

32

Compute Units

32

2048

Shading Units

2048

128

TMUs

128

32

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

768 KB

Theoretical Performance

29.60 GPixel/s

Pixel Rate

32.06 GPixel/s

118.4 GTexel/s

Texture Rate

128.3 GTexel/s

-

FP16 (half)

-

3.789 TFLOPS

FP32 (float)

4.104 TFLOPS

947.2 GFLOPS

FP64 (double)

-

Graphics Processor

New Zealand

GPU Name

Tonga

-

GPU Variant

Tonga XT (215-0851313)

GCN 1.0

Architecture

GCN 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

5 billion

352 mm²

Die Size

366 mm²

Board Design

500W

TDP

200W

900 W

Suggested PSU

550 W

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

Outputs

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

3x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.2

OpenCL

2.0

1.2

Vulkan

1.2

-

CUDA

-

5.1

Shader Model

6.3

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