AMD Radeon R9 280 vs AMD Radeon HD 6970 X2

VS

We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 280 and 2GB VRAM Radeon HD 6970 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 280 's Advantages

Boost Clock933MHz

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (240.0GB/s vs 176.0GB/s)

256 additional rendering cores

Lower TDP (200W vs 375W)

Score

Benchmark

FP32 (float)

Radeon R9 280 +23%

3.344 TFLOPS

Radeon HD 6970 X2

2.703 TFLOPS

Radeon R9 280

VS

Radeon HD 6970 X2

Graphics Card

Mar 2014

Release Date

Unknown

Volcanic Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

827 MHz

Base Clock

-

933 MHz

Boost Clock

-

1250 MHz

Memory Clock

1375 MHz

Memory

3GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

256bit

240.0GB/s

Bandwidth

176.0GB/s

Render Config

-

SM Count

-

28

Compute Units

24

1792

Shading Units

1536

112

TMUs

96

32

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

768 KB

L2 Cache

512 KB

Theoretical Performance

29.86 GPixel/s

Pixel Rate

28.16 GPixel/s

104.5 GTexel/s

Texture Rate

84.48 GTexel/s

-

FP16 (half)

-

3.344 TFLOPS

FP32 (float)

2.703 TFLOPS

836.0 GFLOPS

FP64 (double)

-

Graphics Processor

Tahiti

GPU Name

Antilles

Tahiti PRO3 (215-0821330)

GPU Variant

Antilles XT (215-0807027)

GCN 1.0

Architecture

TeraScale 3

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

4.313 billion

Transistors

2.64 billion

352 mm²

Die Size

389 mm²

Board Design

200W

TDP

375W

550 W

Suggested PSU

750 W

1x DVI 2x 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

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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