AMD Radeon HD 6670 vs AMD Radeon HD 8740 OEM

VS

AMD Radeon HD 6670

AMD Radeon HD 8740 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6670 and 1024MB VRAM Radeon HD 8740 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8740 OEM 's Advantages

Released 2 years and 5 months late

Larger VRAM bandwidth (72.00GB/s vs 64.00GB/s)

32 additional rendering cores

Lower TDP (55W vs 66W)

Score

Benchmark

FP32 (float)

Radeon HD 6670

0.768 TFLOPS

Radeon HD 8740 OEM +6%

0.819 TFLOPS

Radeon HD 6670

VS

Radeon HD 8740 OEM

Graphics Card

Apr 2011

Release Date

Sep 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

1125 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

64.00GB/s

Bandwidth

72.00GB/s

Render Config

6

Compute Units

8

-

480

Shading Units

512

24

TMUs

32

8

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

6.400 GPixel/s

Pixel Rate

12.80 GPixel/s

19.20 GTexel/s

Texture Rate

25.60 GTexel/s

-

768.0 GFLOPS

FP32 (float)

819.2 GFLOPS

-

FP64 (double)

51.20 GFLOPS

Board Design

66W

TDP

55W

250 W

Suggested PSU

250 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

None

Power Connectors

None

Graphics Processor

Turks

GPU Name

Cape Verde

Turks XT (215-0803000)

GPU Variant

Cape Verde PRO

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.716 billion

Transistors

1.5 billion

118 mm²

Die Size

123 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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