AMD Radeon R9 280X vs ATI Radeon HD 5450 PCIe x1

VS

AMD Radeon R9 280X

ATI Radeon HD 5450 PCIe x1

We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 280X and 512MB VRAM Radeon HD 5450 PCIe x1 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 280X 's Advantages

Released 3 years and 8 months late

Boost Clock1000MHz

More VRAM (3GB vs 512GB)

Larger VRAM bandwidth (288.0GB/s vs 8.000GB/s)

1968 additional rendering cores

ATI Radeon HD 5450 PCIe x1 's Advantages

Lower TDP (19W vs 250W)

Score

Benchmark

FP32 (float)

Radeon R9 280X +3838%

4.096 TFLOPS

Radeon HD 5450 PCIe x1

0.104 TFLOPS

Radeon R9 280X

VS

Radeon HD 5450 PCIe x1

Graphics Card

Oct 2013

Release Date

Feb 2010

Volcanic Islands

Generation

Evergreen

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x1

Clock Speeds

850 MHz

Base Clock

-

1000 MHz

Boost Clock

-

1500 MHz

Memory Clock

500 MHz

Memory

3GB

Memory Size

512MB

GDDR5

Memory Type

DDR3

384bit

Memory Bus

64bit

288.0GB/s

Bandwidth

8.000GB/s

Render Config

32

Compute Units

2

-

2048

Shading Units

80

128

TMUs

8

32

ROPs

4

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

768 KB

L2 Cache

128 KB

-

Theoretical Performance

32.00 GPixel/s

Pixel Rate

2.600 GPixel/s

128.0 GTexel/s

Texture Rate

5.200 GTexel/s

-

4.096 TFLOPS

FP32 (float)

104.0 GFLOPS

1024 GFLOPS

FP64 (double)

-

Board Design

250W

TDP

19W

600 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin + 1x 8-pin

Power Connectors

-

Graphics Processor

Tahiti

GPU Name

Cedar

Tahiti XTL (215-0821065)

GPU Variant

Cedar PRO

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

4.313 billion

Transistors

0.292 billion

352 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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