ATI Radeon HD 5770 Mac Edition vs AMD Radeon HD 8870 OEM

VS

ATI Radeon HD 5770 Mac Edition

AMD Radeon HD 8870 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 5770 Mac Edition and 2GB VRAM Radeon HD 8870 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 5770 Mac Edition 's Advantages

Lower TDP (108W vs 175W)

AMD Radeon HD 8870 OEM 's Advantages

Released 2 years and 6 months late

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (153.6GB/s vs 76.48GB/s)

480 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 5770 Mac Edition

1.36 TFLOPS

Radeon HD 8870 OEM +88%

2.56 TFLOPS

Radeon HD 5770 Mac Edition

VS

Radeon HD 8870 OEM

Graphics Card

Jul 2010

Release Date

Jan 2013

Evergreen

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1195 MHz

Memory Clock

1200 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

76.48GB/s

Bandwidth

153.6GB/s

Render Config

10

Compute Units

20

-

800

Shading Units

1280

40

TMUs

80

16

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

13.60 GPixel/s

Pixel Rate

32.00 GPixel/s

34.00 GTexel/s

Texture Rate

80.00 GTexel/s

-

1360 GFLOPS

FP32 (float)

2.560 TFLOPS

-

FP64 (double)

160.0 GFLOPS

Board Design

108W

TDP

175W

300 W

Suggested PSU

450 W

1x DVI 1x DisplayPort 1.1

Outputs

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

1x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

Juniper

GPU Name

Pitcairn

Juniper XT (215-0754013)

GPU Variant

Pitcairn XT (215-0828047)

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.04 billion

Transistors

2.8 billion

166 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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