AMD Radeon HD 8860 OEM vs AMD Radeon HD 6390

VS

AMD Radeon HD 8860 OEM

AMD Radeon HD 6390

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 8860 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 8860 OEM 's Advantages

Released 1 years and 6 months late

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (179.2GB/s vs 16.00GB/s)

960 additional rendering cores

AMD Radeon HD 6390 's Advantages

Lower TDP (39W vs 175W)

Score

Benchmark

FP32 (float)

Radeon HD 8860 OEM +572%

2.368 TFLOPS

Radeon HD 6390

0.352 TFLOPS

Radeon HD 8860 OEM

VS

Radeon HD 6390

Graphics Card

Jan 2013

Release Date

Jul 2011

Sea Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1400 MHz

Memory Clock

500 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

128bit

179.2GB/s

Bandwidth

16.00GB/s

Render Config

20

Compute Units

4

-

1280

Shading Units

320

80

TMUs

16

32

ROPs

8

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

4.400 GPixel/s

74.00 GTexel/s

Texture Rate

8.800 GTexel/s

-

2.368 TFLOPS

FP32 (float)

352.0 GFLOPS

148.0 GFLOPS

FP64 (double)

-

Board Design

175W

TDP

39W

450 W

Suggested PSU

200 W

1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin

Power Connectors

None

Graphics Processor

Curacao

GPU Name

Redwood

Curacao PRO (215-0848000)

GPU Variant

Redwood LE

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.8 billion

Transistors

0.627 billion

212 mm²

Die Size

104 mm²

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.2

OpenCL

1.2

Vulkan

N/A

-

5.1

Shader Model

5.0

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