AMD Radeon HD 7720 OEM vs AMD Radeon HD 6450 OEM

VS

AMD Radeon HD 7720 OEM

AMD Radeon HD 6450 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 7720 OEM and 512MB VRAM Radeon HD 6450 OEM 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 2 years and 1 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (134.4GB/s vs 8.528GB/s)

640 additional rendering cores

AMD Radeon HD 6450 OEM 's Advantages

Lower TDP (18W vs 150W)

Score

Benchmark

FP32 (float)

Radeon HD 7720 OEM +572%

1.344 TFLOPS

Radeon HD 6450 OEM

0.2 TFLOPS

Radeon HD 7720 OEM

VS

Radeon HD 6450 OEM

Graphics Card

Mar 2013

Release Date

Feb 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

533 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

64bit

134.4GB/s

Bandwidth

8.528GB/s

Render Config

10

Compute Units

2

-

800

Shading Units

160

40

TMUs

8

32

ROPs

4

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

26.88 GPixel/s

Pixel Rate

2.500 GPixel/s

33.60 GTexel/s

Texture Rate

5.000 GTexel/s

-

1344 GFLOPS

FP32 (float)

200.0 GFLOPS

-

Board Design

150W

TDP

18W

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

Caicos

Barts LE (215-0798002)

GPU Variant

Junbonator

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.7 billion

Transistors

0.37 billion

255 mm²

Die Size

67 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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