AMD Radeon HD 7450 OEM vs AMD Radeon HD 6390

VS

AMD Radeon HD 7450 OEM

AMD Radeon HD 6390

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 7450 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 7450 OEM 's Advantages

Released 6 months late

Lower TDP (18W vs 39W)

AMD Radeon HD 6390 's Advantages

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (16.00GB/s vs 8.528GB/s)

160 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7450 OEM

0.2 TFLOPS

Radeon HD 6390 +76%

0.352 TFLOPS

Radeon HD 7450 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

-

533 MHz

Memory Clock

500 MHz

Memory

512MB

Memory Size

1024MB

GDDR3

Memory Type

DDR2

64bit

Memory Bus

128bit

8.528GB/s

Bandwidth

16.00GB/s

Render Config

2

Compute Units

4

-

160

Shading Units

320

8

TMUs

16

4

ROPs

8

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

2.500 GPixel/s

Pixel Rate

4.400 GPixel/s

5.000 GTexel/s

Texture Rate

8.800 GTexel/s

-

200.0 GFLOPS

FP32 (float)

352.0 GFLOPS

-

Board Design

18W

TDP

39W

200 W

Suggested PSU

200 W

1x DVI 1x HDMI 1.3a

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

None

Power Connectors

None

Graphics Processor

Caicos

GPU Name

Redwood

Caimour

GPU Variant

Redwood LE

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.37 billion

Transistors

0.627 billion

67 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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