AMD Radeon HD 6390 vs AMD Radeon HD 6850 1440SP Edition

VS

AMD Radeon HD 6390

AMD Radeon HD 6850 1440SP Edition

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6390 and 1024MB VRAM Radeon HD 6850 1440SP Edition 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 151W)

AMD Radeon HD 6850 1440SP Edition 's Advantages

Released 1 years and 1 months late

Larger VRAM bandwidth (128.0GB/s vs 16.00GB/s)

1120 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6390

0.352 TFLOPS

Radeon HD 6850 1440SP Edition +493%

2.088 TFLOPS

Radeon HD 6390

VS

Radeon HD 6850 1440SP Edition

Graphics Card

Jul 2011

Release Date

Aug 2012

Northern Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

500 MHz

Memory Clock

1000 MHz

Memory

1024MB

Memory Size

1024MB

DDR2

Memory Type

GDDR5

128bit

Memory Bus

256bit

16.00GB/s

Bandwidth

128.0GB/s

Render Config

4

Compute Units

18

-

320

Shading Units

1440

16

TMUs

72

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

23.20 GPixel/s

8.800 GTexel/s

Texture Rate

52.20 GTexel/s

-

352.0 GFLOPS

FP32 (float)

2.088 TFLOPS

-

FP64 (double)

417.6 GFLOPS

Board Design

39W

TDP

151W

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

2x 6-pin

Graphics Processor

Redwood

GPU Name

Cypress

Redwood LE

GPU Variant

Cypress PRO (215-0735043)

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.627 billion

Transistors

2.154 billion

104 mm²

Die Size

334 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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