AMD Radeon R9 270X vs ATI Radeon HD 5490

VS

AMD Radeon R9 270X

ATI Radeon HD 5490

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 270X and 1024MB VRAM Radeon HD 5490 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 270X 's Advantages

Released 1 years late

Boost Clock1050MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (179.2GB/s vs 8.000GB/s)

1200 additional rendering cores

ATI Radeon HD 5490 's Advantages

Lower TDP (19W vs 180W)

Score

Benchmark

FP32 (float)

Radeon R9 270X +2484%

2.688 TFLOPS

Radeon HD 5490

0.104 TFLOPS

Radeon R9 270X

VS

Radeon HD 5490

Graphics Card

Oct 2013

Release Date

Oct 2012

Volcanic Islands

Generation

Evergreen

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1000 MHz

Base Clock

-

1050 MHz

Boost Clock

-

1400 MHz

Memory Clock

500 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

64bit

179.2GB/s

Bandwidth

8.000GB/s

Render Config

20

Compute Units

2

-

1280

Shading Units

80

TMUs

8

32

ROPs

4

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

33.60 GPixel/s

Pixel Rate

2.600 GPixel/s

84.00 GTexel/s

Texture Rate

5.200 GTexel/s

-

2.688 TFLOPS

FP32 (float)

104.0 GFLOPS

168.0 GFLOPS

FP64 (double)

-

Board Design

180W

TDP

19W

450 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

2x 6-pin

Power Connectors

None

Graphics Processor

Curacao

GPU Name

Cedar

Curacao XT (215-0848004)

GPU Variant

Cedar XTX

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.8 billion

Transistors

0.292 billion

212 mm²

Die Size

59 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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