AMD Radeon HD 7670 OEM vs AMD Radeon HD 6390

VS

AMD Radeon HD 7670 OEM

AMD Radeon HD 6390

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

Main Differences

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

AMD Radeon HD 6390 's Advantages

More VRAM (1024GB vs 512GB)

Lower TDP (39W vs 66W)

Score

Benchmark

FP32 (float)

Radeon HD 7670 OEM +118%

0.768 TFLOPS

Radeon HD 6390

0.352 TFLOPS

Radeon HD 7670 OEM

VS

Radeon HD 6390

Graphics Card

Jan 2012

Release Date

Jul 2011

Southern Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

500 MHz

Memory

512MB

Memory Size

1024MB

GDDR5

Memory Type

DDR2

128bit

Memory Bus

128bit

64.00GB/s

Bandwidth

16.00GB/s

Render Config

6

Compute Units

4

-

480

Shading Units

320

24

TMUs

16

8

ROPs

8

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

6.400 GPixel/s

Pixel Rate

4.400 GPixel/s

19.20 GTexel/s

Texture Rate

8.800 GTexel/s

-

768.0 GFLOPS

FP32 (float)

352.0 GFLOPS

-

Board Design

66W

TDP

39W

250 W

Suggested PSU

200 W

1x DVI 1x DisplayPort 1.1 1x VGA

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

None

Power Connectors

None

Graphics Processor

Turks

GPU Name

Redwood

Turks XT (215-0803000)

GPU Variant

Redwood LE

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.716 billion

Transistors

0.627 billion

118 mm²

Die Size

104 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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