ATI Radeon HD 5970 vs AMD Radeon HD 7970

VS

ATI Radeon HD 5970

AMD Radeon HD 7970

We compared two Desktop platform GPUs: 1024MB VRAM ATI Radeon HD 5970 and 3GB VRAM Radeon HD 7970 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7970 's Advantages

Released 2 years and 1 months late

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (264.0GB/s vs 128.0GB/s)

448 additional rendering cores

Lower TDP (250W vs 294W)

Score

Benchmark

FP32 (float)

ATI Radeon HD 5970

2.32 TFLOPS

Radeon HD 7970 +63%

3.789 TFLOPS

ATI Radeon HD 5970

VS

Radeon HD 7970

Graphics Card

Nov 2009

Release Date

Dec 2011

Evergreen

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

1375 MHz

Memory

1024MB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

384bit

128.0GB/s

Bandwidth

264.0GB/s

Render Config

20

Compute Units

32

-

1600

Shading Units

2048

80

TMUs

128

32

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

768 KB

-

Theoretical Performance

23.20 GPixel/s

Pixel Rate

29.60 GPixel/s

58.00 GTexel/s

Texture Rate

118.4 GTexel/s

-

2.320 TFLOPS

FP32 (float)

3.789 TFLOPS

464.0 GFLOPS

FP64 (double)

947.2 GFLOPS

Board Design

294W

TDP

250W

600 W

Suggested PSU

600 W

2x DVI 1x mini-DisplayPort 1.1

Outputs

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

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Hemlock

GPU Name

Tahiti

Hemlock XT (215-0735075)

GPU Variant

Tahiti XT (215-0821060)

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

2.154 billion

Transistors

4.313 billion

334 mm²

Die Size

352 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

1.2

N/A

Vulkan

1.2

-

5.0

Shader Model

5.1

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