AMD Radeon HD 6390 vs AMD Radeon HD 7720 OEM

VS

AMD Radeon HD 6390

AMD Radeon HD 7720 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6390 and 1024MB VRAM Radeon HD 7720 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6390 's Advantages

Lower TDP (39W vs 150W)

AMD Radeon HD 7720 OEM 's Advantages

Released 1 years and 8 months late

Larger VRAM bandwidth (134.4GB/s vs 16.00GB/s)

480 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6390

0.352 TFLOPS

Radeon HD 7720 OEM +281%

1.344 TFLOPS

Radeon HD 6390

VS

Radeon HD 7720 OEM

Graphics Card

Jul 2011

Release Date

Mar 2013

Northern Islands

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

500 MHz

Memory Clock

1050 MHz

Memory

1024MB

Memory Size

1024MB

DDR2

Memory Type

GDDR5

128bit

Memory Bus

256bit

16.00GB/s

Bandwidth

134.4GB/s

Render Config

4

Compute Units

10

-

320

Shading Units

800

16

TMUs

40

8

ROPs

32

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

4.400 GPixel/s

Pixel Rate

26.88 GPixel/s

8.800 GTexel/s

Texture Rate

33.60 GTexel/s

-

352.0 GFLOPS

FP32 (float)

1344 GFLOPS

-

Board Design

39W

TDP

150W

200 W

Suggested PSU

450 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

2x DVI 1x HDMI 1.3a 1x DisplayPort 1.1

None

Power Connectors

-

Graphics Processor

Redwood

GPU Name

Barts

Redwood LE

GPU Variant

Barts LE (215-0798002)

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.627 billion

Transistors

1.7 billion

104 mm²

Die Size

255 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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