AMD Radeon HD 7720 OEM vs AMD Radeon HD 6390

VS

AMD Radeon HD 7720 OEM

AMD Radeon HD 6390

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 7720 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 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

AMD Radeon HD 6390 's Advantages

Lower TDP (39W vs 150W)

Score

Benchmark

FP32 (float)

Radeon HD 7720 OEM +281%

1.344 TFLOPS

Radeon HD 6390

0.352 TFLOPS

Radeon HD 7720 OEM

VS

Radeon HD 6390

Graphics Card

Mar 2013

Release Date

Jul 2011

Southern Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1050 MHz

Memory Clock

500 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

128bit

134.4GB/s

Bandwidth

16.00GB/s

Render Config

10

Compute Units

4

-

800

Shading Units

320

40

TMUs

16

32

ROPs

8

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

26.88 GPixel/s

Pixel Rate

4.400 GPixel/s

33.60 GTexel/s

Texture Rate

8.800 GTexel/s

-

1344 GFLOPS

FP32 (float)

352.0 GFLOPS

-

Board Design

150W

TDP

39W

450 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

-

Power Connectors

None

Graphics Processor

Barts

GPU Name

Redwood

Barts LE (215-0798002)

GPU Variant

Redwood LE

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.7 billion

Transistors

0.627 billion

255 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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