AMD Radeon R9 280X2 vs AMD Radeon HD 6970

VS

AMD Radeon R9 280X2

AMD Radeon HD 6970

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

Main Differences

AMD Radeon R9 280X2 's Advantages

Boost Clock1000MHz

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (288.0GB/s vs 176.0GB/s)

512 additional rendering cores

AMD Radeon HD 6970 's Advantages

Lower TDP (250W vs 375W)

Score

Benchmark

FP32 (float)

Radeon R9 280X2 +51%

4.096 TFLOPS

Radeon HD 6970

2.703 TFLOPS

Radeon R9 280X2

VS

Radeon HD 6970

Graphics Card

Unknown

Release Date

Dec 2010

Volcanic Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

950 MHz

Base Clock

-

1000 MHz

Boost Clock

-

1500 MHz

Memory Clock

1375 MHz

Memory

3GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

256bit

288.0GB/s

Bandwidth

176.0GB/s

Render Config

32

Compute Units

24

-

2048

Shading Units

1536

128

TMUs

96

32

ROPs

32

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

768 KB

L2 Cache

512 KB

-

Theoretical Performance

32.00 GPixel/s

Pixel Rate

28.16 GPixel/s

128.0 GTexel/s

Texture Rate

84.48 GTexel/s

-

4.096 TFLOPS

FP32 (float)

2.703 TFLOPS

1024 GFLOPS

FP64 (double)

675.8 GFLOPS

Board Design

375W

TDP

250W

750 W

Suggested PSU

600 W

6x mini-DisplayPort 1.2

Outputs

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

3x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Tahiti

GPU Name

Cayman

Tahiti XTL (215-0821065)

GPU Variant

Cayman XT (215-0807007)

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

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.2

OpenCL

1.2

Vulkan

N/A

-

5.1

Shader Model

5.0

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