AMD Radeon HD 6390 vs AMD Radeon R7 260

VS

AMD Radeon HD 6390

AMD Radeon R7 260

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6390 and 2GB VRAM Radeon R7 260 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 95W)

AMD Radeon R7 260 's Advantages

Released 2 years and 5 months late

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (96.00GB/s vs 16.00GB/s)

448 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6390

0.352 TFLOPS

Radeon R7 260 +336%

1.536 TFLOPS

Radeon HD 6390

VS

Radeon R7 260

Graphics Card

Jul 2011

Release Date

Dec 2013

Northern Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

500 MHz

Memory Clock

1500 MHz

Memory

1024MB

Memory Size

2GB

DDR2

Memory Type

GDDR5

128bit

Memory Bus

128bit

16.00GB/s

Bandwidth

96.00GB/s

Render Config

4

Compute Units

12

-

320

Shading Units

768

16

TMUs

48

8

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

4.400 GPixel/s

Pixel Rate

16.00 GPixel/s

8.800 GTexel/s

Texture Rate

48.00 GTexel/s

-

352.0 GFLOPS

FP32 (float)

1.536 TFLOPS

-

FP64 (double)

96.00 GFLOPS

Board Design

39W

TDP

95W

200 W

Suggested PSU

250 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

None

Power Connectors

1x 6-pin

Graphics Processor

Redwood

GPU Name

Bonaire

Redwood LE

GPU Variant

Bonaire PRO

TeraScale 2

Architecture

GCN 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.627 billion

Transistors

2.08 billion

104 mm²

Die Size

160 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (12_0)

4.4

OpenGL

4.6

1.2

OpenCL

2.0

N/A

Vulkan

1.2

-

5.0

Shader Model

6.3

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