AMD Radeon HD 6390 vs AMD Radeon HD 7670 OEM

VS

AMD Radeon HD 6390

AMD Radeon HD 7670 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6390 and 512MB VRAM Radeon HD 7670 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6390 's Advantages

More VRAM (1024GB vs 512GB)

Lower TDP (39W vs 66W)

AMD Radeon HD 7670 OEM 's Advantages

Released 6 months late

Larger VRAM bandwidth (64.00GB/s vs 16.00GB/s)

160 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6390

0.352 TFLOPS

Radeon HD 7670 OEM +118%

0.768 TFLOPS

Radeon HD 6390

VS

Radeon HD 7670 OEM

Graphics Card

Jul 2011

Release Date

Jan 2012

Northern Islands

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

500 MHz

Memory Clock

1000 MHz

Memory

1024MB

Memory Size

512MB

DDR2

Memory Type

GDDR5

128bit

Memory Bus

128bit

16.00GB/s

Bandwidth

64.00GB/s

Render Config

4

Compute Units

6

-

320

Shading Units

480

16

TMUs

24

8

ROPs

8

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

4.400 GPixel/s

Pixel Rate

6.400 GPixel/s

8.800 GTexel/s

Texture Rate

19.20 GTexel/s

-

352.0 GFLOPS

FP32 (float)

768.0 GFLOPS

-

Board Design

39W

TDP

66W

200 W

Suggested PSU

250 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

1x DVI 1x DisplayPort 1.1 1x VGA

None

Power Connectors

None

Graphics Processor

Redwood

GPU Name

Turks

Redwood LE

GPU Variant

Turks XT (215-0803000)

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.627 billion

Transistors

0.716 billion

104 mm²

Die Size

118 mm²

Graphics Features

11.2 (11_0)

DirectX

11.2 (11_0)

4.4

OpenGL

4.4

1.2

OpenCL

1.2

N/A

Vulkan

N/A

-

5.0

Shader Model

5.0

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