AMD Radeon R9 255 OEM vs ATI Radeon HD 5450

VS

AMD Radeon R9 255 OEM

ATI Radeon HD 5450

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 255 OEM and 512MB VRAM Radeon HD 5450 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 255 OEM 's Advantages

Released 3 years and 10 months late

Boost Clock930MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (73.60GB/s vs 6.400GB/s)

432 additional rendering cores

ATI Radeon HD 5450 's Advantages

Lower TDP (19W vs 65W)

Score

Benchmark

FP32 (float)

Radeon R9 255 OEM +815%

0.952 TFLOPS

Radeon HD 5450

0.104 TFLOPS

Radeon R9 255 OEM

VS

Radeon HD 5450

Graphics Card

Dec 2013

Release Date

Feb 2010

Volcanic Islands

Generation

Evergreen

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

900 MHz

Base Clock

-

930 MHz

Boost Clock

-

1150 MHz

Memory Clock

400 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

DDR2

128bit

Memory Bus

64bit

73.60GB/s

Bandwidth

6.400GB/s

Render Config

8

Compute Units

2

-

512

Shading Units

80

32

TMUs

8

16

ROPs

4

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

14.88 GPixel/s

Pixel Rate

2.600 GPixel/s

29.76 GTexel/s

Texture Rate

5.200 GTexel/s

-

952.3 GFLOPS

FP32 (float)

104.0 GFLOPS

59.52 GFLOPS

FP64 (double)

-

Board Design

65W

TDP

19W

250 W

Suggested PSU

200 W

No outputs

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin

Power Connectors

None

Graphics Processor

Cape Verde

GPU Name

Cedar

Cape Verde PRX

GPU Variant

Cedar PRO

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.5 billion

Transistors

0.292 billion

123 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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