AMD Radeon R9 390X vs ATI Radeon HD 5450 PCIe x1

VS

AMD Radeon R9 390X

ATI Radeon HD 5450 PCIe x1

We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390X 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 390X 's Advantages

Released 5 years and 4 months late

More VRAM (8GB vs 512GB)

Larger VRAM bandwidth (384.0GB/s vs 8.000GB/s)

2736 additional rendering cores

ATI Radeon HD 5450 PCIe x1 's Advantages

Lower TDP (19W vs 275W)

Score

Benchmark

FP32 (float)

Radeon R9 390X +5586%

5.914 TFLOPS

Radeon HD 5450 PCIe x1

0.104 TFLOPS

Radeon R9 390X

VS

Radeon HD 5450 PCIe x1

Graphics Card

Jun 2015

Release Date

Feb 2010

Pirate Islands

Generation

Evergreen

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x1

Clock Speeds

-

1500 MHz

Memory Clock

500 MHz

Memory

8GB

Memory Size

512MB

GDDR5

Memory Type

DDR3

512bit

Memory Bus

64bit

384.0GB/s

Bandwidth

8.000GB/s

Render Config

44

Compute Units

2

-

2816

Shading Units

80

176

TMUs

8

64

ROPs

4

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

1024 KB

L2 Cache

128 KB

-

Theoretical Performance

67.20 GPixel/s

Pixel Rate

2.600 GPixel/s

184.8 GTexel/s

Texture Rate

5.200 GTexel/s

-

5.914 TFLOPS

FP32 (float)

104.0 GFLOPS

739.2 GFLOPS

FP64 (double)

-

Board Design

275W

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

Grenada

GPU Name

Cedar

Grenada XT (215-0880004)

GPU Variant

Cedar PRO

GCN 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

6.2 billion

Transistors

0.292 billion

438 mm²

Die Size

59 mm²

Graphics Features

12 (12_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.0

OpenCL

1.2

Vulkan

N/A

-

6.3

Shader Model

5.0

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