ATI Radeon HD 4870 Mac Edition vs AMD Radeon RX 550

VS

ATI Radeon HD 4870 Mac Edition

AMD Radeon RX 550

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4870 Mac Edition and 2GB VRAM Radeon RX 550 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4870 Mac Edition 's Advantages

288 additional rendering cores

AMD Radeon RX 550 's Advantages

Released 8 years and 3 months late

Boost Clock1183MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (112.0GB/s vs 108.8GB/s)

Lower TDP (50W vs 150W)

Score

Benchmark

FP32 (float)

Radeon HD 4870 Mac Edition

1.2 TFLOPS

Radeon RX 550

1.211 TFLOPS

Radeon HD 4870 Mac Edition

VS

Radeon RX 550

Graphics Card

Jan 2009

Release Date

Apr 2017

Radeon R700

Generation

Polaris

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1100 MHz

-

Boost Clock

1183 MHz

850 MHz

Memory Clock

1750 MHz

Memory

512MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

108.8GB/s

Bandwidth

112.0GB/s

Render Config

10

Compute Units

8

-

800

Shading Units

512

40

TMUs

32

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

12.00 GPixel/s

Pixel Rate

18.93 GPixel/s

30.00 GTexel/s

Texture Rate

37.86 GTexel/s

-

FP16 (half)

1211 GFLOPS

1200 GFLOPS

FP32 (float)

1211 GFLOPS

240.0 GFLOPS

FP64 (double)

75.71 GFLOPS

Board Design

150W

TDP

50W

450 W

Suggested PSU

250 W

1x DVI 1x mini-DisplayPort 1.0

Outputs

1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a

2x 6-pin

Power Connectors

None

Graphics Processor

RV770

GPU Name

Lexa

RV770 XT Mac (215-0669080)

GPU Variant

Lexa PRO (215-0904018)

TeraScale

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

55 nm

Process Size

14 nm

0.956 billion

Transistors

2.2 billion

256 mm²

Die Size

103 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (12_0)

3.3

OpenGL

4.6

1.1

OpenCL

2.1

N/A

Vulkan

1.2

-

4.1

Shader Model

6.4

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