AMD Radeon HD 8550 OEM vs AMD Radeon HD 8870 OEM

VS

AMD Radeon HD 8550 OEM

AMD Radeon HD 8870 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 8550 OEM and 2GB VRAM Radeon HD 8870 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

Released 9 months late

Lower TDP (60W vs 175W)

AMD Radeon HD 8870 OEM 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (153.6GB/s vs 25.60GB/s)

800 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8550 OEM

0.624 TFLOPS

Radeon HD 8870 OEM +310%

2.56 TFLOPS

Radeon HD 8550 OEM

VS

Radeon HD 8870 OEM

Graphics Card

Oct 2013

Release Date

Jan 2013

Sea Islands

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

800 MHz

Memory Clock

1200 MHz

Memory

1024MB

Memory Size

2GB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

25.60GB/s

Bandwidth

153.6GB/s

Render Config

6

Compute Units

20

-

480

Shading Units

1280

24

TMUs

80

8

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

5.200 GPixel/s

Pixel Rate

32.00 GPixel/s

15.60 GTexel/s

Texture Rate

80.00 GTexel/s

-

624.0 GFLOPS

FP32 (float)

2.560 TFLOPS

-

FP64 (double)

160.0 GFLOPS

Board Design

60W

TDP

175W

250 W

Suggested PSU

450 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

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

None

Power Connectors

2x 6-pin

Graphics Processor

Turks

GPU Name

Pitcairn

Turks PRO (215-0803002)

GPU Variant

Pitcairn XT (215-0828047)

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.716 billion

Transistors

2.8 billion

118 mm²

Die Size

212 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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