AMD Radeon HD 8550 OEM vs AMD Radeon R9 255 OEM

VS

AMD Radeon HD 8550 OEM

AMD Radeon R9 255 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 8550 OEM and 2GB VRAM Radeon R9 255 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8550 OEM 's Advantages

Lower TDP (60W vs 65W)

AMD Radeon R9 255 OEM 's Advantages

Boost Clock930MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (73.60GB/s vs 25.60GB/s)

32 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8550 OEM

0.624 TFLOPS

Radeon R9 255 OEM +52%

0.952 TFLOPS

Radeon HD 8550 OEM

VS

Radeon R9 255 OEM

Graphics Card

Oct 2013

Release Date

Dec 2013

Sea Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

900 MHz

-

Boost Clock

930 MHz

800 MHz

Memory Clock

1150 MHz

Memory

1024MB

Memory Size

2GB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

128bit

25.60GB/s

Bandwidth

73.60GB/s

Render Config

6

Compute Units

8

-

480

Shading Units

512

24

TMUs

32

8

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

5.200 GPixel/s

Pixel Rate

14.88 GPixel/s

15.60 GTexel/s

Texture Rate

29.76 GTexel/s

-

624.0 GFLOPS

FP32 (float)

952.3 GFLOPS

-

FP64 (double)

59.52 GFLOPS

Board Design

60W

TDP

65W

250 W

Suggested PSU

250 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

No outputs

None

Power Connectors

1x 6-pin

Graphics Processor

Turks

GPU Name

Cape Verde

Turks PRO (215-0803002)

GPU Variant

Cape Verde PRX

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.716 billion

Transistors

1.5 billion

118 mm²

Die Size

123 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

1.2

N/A

Vulkan

1.2

-

5.0

Shader Model

5.1

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