AMD Radeon HD 7970 vs ATI Radeon HD 5870 Mac Edition

VS

AMD Radeon HD 7970

ATI Radeon HD 5870 Mac Edition

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 and 1024MB VRAM Radeon HD 5870 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7970 's Advantages

Released 1 years and 6 months late

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (264.0GB/s vs 153.0GB/s)

448 additional rendering cores

ATI Radeon HD 5870 Mac Edition 's Advantages

Lower TDP (228W vs 250W)

Score

Benchmark

FP32 (float)

Radeon HD 7970 +39%

3.789 TFLOPS

Radeon HD 5870 Mac Edition

2.72 TFLOPS

Radeon HD 7970

VS

Radeon HD 5870 Mac Edition

Graphics Card

Dec 2011

Release Date

Jun 2010

Southern Islands

Generation

Evergreen

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1375 MHz

Memory Clock

1195 MHz

Memory

3GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

256bit

264.0GB/s

Bandwidth

153.0GB/s

Render Config

32

Compute Units

20

-

2048

Shading Units

1600

128

TMUs

80

32

ROPs

32

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

768 KB

L2 Cache

512 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

27.20 GPixel/s

118.4 GTexel/s

Texture Rate

68.00 GTexel/s

-

3.789 TFLOPS

FP32 (float)

2.720 TFLOPS

947.2 GFLOPS

FP64 (double)

544.0 GFLOPS

Board Design

250W

TDP

228W

600 W

Suggested PSU

550 W

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

Outputs

1x DVI 2x mini-DisplayPort 1.1

1x 6-pin + 1x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

Tahiti

GPU Name

Cypress

Tahiti XT (215-0821060)

GPU Variant

Cypress XT (215-0735033)

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

4.313 billion

Transistors

2.154 billion

352 mm²

Die Size

334 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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