AMD Radeon HD 8970 OEM vs AMD Radeon HD 6670

VS

AMD Radeon HD 8970 OEM

AMD Radeon HD 6670

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

Main Differences

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

AMD Radeon HD 6670 's Advantages

Lower TDP (66W vs 250W)

Score

Benchmark

FP32 (float)

Radeon HD 8970 OEM +393%

3.789 TFLOPS

Radeon HD 6670

0.768 TFLOPS

Radeon HD 8970 OEM

VS

Radeon HD 6670

Graphics Card

Jan 2013

Release Date

Apr 2011

Sea Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1375 MHz

Memory Clock

1000 MHz

Memory

3GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

128bit

264.0GB/s

Bandwidth

64.00GB/s

Render Config

32

Compute Units

6

-

2048

Shading Units

480

128

TMUs

24

32

ROPs

8

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

768 KB

L2 Cache

256 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

6.400 GPixel/s

118.4 GTexel/s

Texture Rate

19.20 GTexel/s

-

3.789 TFLOPS

FP32 (float)

768.0 GFLOPS

947.2 GFLOPS

FP64 (double)

-

Board Design

250W

TDP

66W

600 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

Tahiti

GPU Name

Turks

Tahiti XT (215-0821060)

GPU Variant

Turks XT (215-0803000)

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

4.313 billion

Transistors

0.716 billion

352 mm²

Die Size

118 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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