AMD Radeon HD 6670 vs AMD Radeon HD 8970 OEM

VS

AMD Radeon HD 6670

AMD Radeon HD 8970 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6670 and 3GB VRAM Radeon HD 8970 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6670 's Advantages

Lower TDP (66W vs 250W)

AMD Radeon HD 8970 OEM 's Advantages

Released 1 years and 9 months late

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (264.0GB/s vs 64.00GB/s)

1568 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6670

0.768 TFLOPS

Radeon HD 8970 OEM +393%

3.789 TFLOPS

Radeon HD 6670

VS

Radeon HD 8970 OEM

Graphics Card

Apr 2011

Release Date

Jan 2013

Northern Islands

Generation

Sea 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

128bit

Memory Bus

384bit

64.00GB/s

Bandwidth

264.0GB/s

Render Config

6

Compute Units

32

-

480

Shading Units

2048

24

TMUs

128

8

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

768 KB

-

Theoretical Performance

6.400 GPixel/s

Pixel Rate

29.60 GPixel/s

19.20 GTexel/s

Texture Rate

118.4 GTexel/s

-

768.0 GFLOPS

FP32 (float)

3.789 TFLOPS

-

FP64 (double)

947.2 GFLOPS

Board Design

66W

TDP

250W

250 W

Suggested PSU

600 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

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

None

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Turks

GPU Name

Tahiti

Turks XT (215-0803000)

GPU Variant

Tahiti XT (215-0821060)

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.716 billion

Transistors

4.313 billion

118 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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