AMD Radeon HD 7970 GHz Edition vs AMD Radeon HD 7870 XT

VS

AMD Radeon HD 7970 GHz Edition AMD Radeon HD 7870 XT

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 GHz Edition and 2GB VRAM Radeon HD 7870 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7970 GHz Edition 's Advantages

Boost Clock has increased by 8% (1050MHz vs 975MHz)

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (288.0GB/s vs 192.0GB/s)

512 additional rendering cores

AMD Radeon HD 7870 XT 's Advantages

Lower TDP (185W vs 300W)

Score

Benchmark

FP32 (float)

Radeon HD 7970 GHz Edition +43%

4.301 TFLOPS

Radeon HD 7870 XT

2.995 TFLOPS

Radeon HD 7970 GHz Edition

VS

Radeon HD 7870 XT

Graphics Card

Jun 2012

Release Date

Nov 2012

Southern Islands

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1000 MHz

Base Clock

925 MHz

1050 MHz

Boost Clock

975 MHz

1500 MHz

Memory Clock

1500 MHz

Memory

3GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

256bit

288.0GB/s

Bandwidth

192.0GB/s

Render Config

-

SM Count

-

32

Compute Units

24

2048

Shading Units

1536

128

TMUs

96

32

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

512 KB

Theoretical Performance

33.60 GPixel/s

Pixel Rate

31.20 GPixel/s

134.4 GTexel/s

Texture Rate

93.60 GTexel/s

-

FP16 (half)

-

4.301 TFLOPS

FP32 (float)

2.995 TFLOPS

1075 GFLOPS

FP64 (double)

748.8 GFLOPS

Graphics Processor

Tahiti

GPU Name

Tahiti

Tahiti XT2 (215-0821065)

GPU Variant

Tahiti LE (215-0821122)

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

300W

TDP

185W

700 W

Suggested PSU

450 W

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

Outputs

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

1x 6-pin + 1x 8-pin

Power Connectors

2x 6-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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