AMD Radeon HD 7970 vs AMD Radeon R7 260X

VS

AMD Radeon HD 7970

AMD Radeon R7 260X

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 and 2GB VRAM Radeon R7 260X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7970 's Advantages

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (264.0GB/s vs 104.0GB/s)

1152 additional rendering cores

AMD Radeon R7 260X 's Advantages

Released 1 years and 10 months late

Lower TDP (115W vs 250W)

Score

Benchmark

FP32 (float)

Radeon HD 7970 +92%

3.789 TFLOPS

Radeon R7 260X

1.971 TFLOPS

3DMark Time Spy

Radeon HD 7970 +54%

2279

Radeon R7 260X

1476

Radeon HD 7970

VS

Radeon R7 260X

Graphics Card

Dec 2011

Release Date

Oct 2013

Southern Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1375 MHz

Memory Clock

1625 MHz

Memory

3GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

128bit

264.0GB/s

Bandwidth

104.0GB/s

Render Config

32

Compute Units

14

-

2048

Shading Units

896

128

TMUs

56

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

256 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

17.60 GPixel/s

118.4 GTexel/s

Texture Rate

61.60 GTexel/s

-

3.789 TFLOPS

FP32 (float)

1.971 TFLOPS

947.2 GFLOPS

FP64 (double)

123.2 GFLOPS

Board Design

250W

TDP

115W

600 W

Suggested PSU

300 W

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

Outputs

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

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Tahiti

GPU Name

Bonaire

Tahiti XT (215-0821060)

GPU Variant

Bonaire XTX (215-0839097)

GCN 1.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

2.08 billion

352 mm²

Die Size

160 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.2

OpenCL

2.0

1.2

Vulkan

1.2

-

5.1

Shader Model

6.3

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