AMD Radeon R9 280X vs AMD Radeon HD 7970 X2

VS

AMD Radeon R9 280X AMD Radeon HD 7970 X2

We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 280X 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 R9 280X 's Advantages

Released 1 years and 2 months late

Boost Clock1000MHz

Larger VRAM bandwidth (288.0GB/s vs 264.0GB/s)

Lower TDP (250W vs 500W)

Score

Benchmark

FP32 (float)

Radeon R9 280X +8%

4.096 TFLOPS

Radeon HD 7970 X2

3.789 TFLOPS

Radeon R9 280X

VS

Radeon HD 7970 X2

Graphics Card

Oct 2013

Release Date

Aug 2012

Volcanic Islands

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

850 MHz

Base Clock

-

1000 MHz

Boost Clock

-

1500 MHz

Memory Clock

1375 MHz

Memory

3GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

384bit

288.0GB/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

32.00 GPixel/s

Pixel Rate

29.60 GPixel/s

128.0 GTexel/s

Texture Rate

118.4 GTexel/s

-

FP16 (half)

-

4.096 TFLOPS

FP32 (float)

3.789 TFLOPS

1024 GFLOPS

FP64 (double)

947.2 GFLOPS

Graphics Processor

Tahiti

GPU Name

New Zealand

Tahiti XTL (215-0821065)

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

Board Design

250W

TDP

500W

600 W

Suggested PSU

900 W

2x DVI 1x HDMI 1.4a 1x 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 Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.2

OpenCL

1.2

Vulkan

1.2

-

CUDA

-

5.1

Shader Model

5.1

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