AMD Radeon HD 6490 vs AMD Radeon R9 Nano

VS

AMD Radeon HD 6490

AMD Radeon R9 Nano

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6490 and 4GB VRAM Radeon R9 Nano to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6490 's Advantages

Lower TDP (39W vs 175W)

AMD Radeon R9 Nano 's Advantages

Released 4 years and 1 months late

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (512.0GB/s vs 16.00GB/s)

3776 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6490

0.352 TFLOPS

Radeon R9 Nano +2227%

8.192 TFLOPS

Radeon HD 6490

VS

Radeon R9 Nano

Graphics Card

Jul 2011

Release Date

Aug 2015

Northern Islands

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

500 MHz

Memory Clock

500 MHz

Memory

1024MB

Memory Size

4GB

DDR2

Memory Type

HBM

128bit

Memory Bus

4096bit

16.00GB/s

Bandwidth

512.0GB/s

Render Config

4

Compute Units

64

-

320

Shading Units

4096

16

TMUs

256

8

ROPs

64

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

2 MB

-

Theoretical Performance

4.400 GPixel/s

Pixel Rate

64.00 GPixel/s

8.800 GTexel/s

Texture Rate

256.0 GTexel/s

-

FP16 (half)

8.192 TFLOPS

352.0 GFLOPS

FP32 (float)

8.192 TFLOPS

-

FP64 (double)

512.0 GFLOPS

Board Design

39W

TDP

175W

200 W

Suggested PSU

450 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

1x HDMI 1.4a 3x DisplayPort 1.2

None

Power Connectors

1x 8-pin

Graphics Processor

Redwood

GPU Name

Fiji

Redwood LE

GPU Variant

Fiji XT CA (215-0862120)

TeraScale 2

Architecture

GCN 3.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.627 billion

Transistors

8.9 billion

104 mm²

Die Size

596 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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