ATI Radeon HD 4870 Mac Edition vs AMD Radeon RX 580X

VS

ATI Radeon HD 4870 Mac Edition

AMD Radeon RX 580X

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4870 Mac Edition and 8GB VRAM Radeon RX 580X 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

Lower TDP (150W vs 185W)

AMD Radeon RX 580X 's Advantages

Released 9 years and 3 months late

Boost Clock1340MHz

More VRAM (8GB vs 512GB)

Larger VRAM bandwidth (256.0GB/s vs 108.8GB/s)

1504 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 4870 Mac Edition

1.2 TFLOPS

Radeon RX 580X +414%

6.175 TFLOPS

Radeon HD 4870 Mac Edition

VS

Radeon RX 580X

Graphics Card

Jan 2009

Release Date

Apr 2018

Radeon R700

Generation

Polaris

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1257 MHz

-

Boost Clock

1340 MHz

850 MHz

Memory Clock

2000 MHz

Memory

512MB

Memory Size

8GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

108.8GB/s

Bandwidth

256.0GB/s

Render Config

10

Compute Units

36

-

800

Shading Units

2304

40

TMUs

144

16

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

2 MB

-

Theoretical Performance

12.00 GPixel/s

Pixel Rate

42.88 GPixel/s

30.00 GTexel/s

Texture Rate

193.0 GTexel/s

-

FP16 (half)

6.175 TFLOPS

1200 GFLOPS

FP32 (float)

6.175 TFLOPS

240.0 GFLOPS

FP64 (double)

385.9 GFLOPS

Board Design

150W

TDP

185W

450 W

Suggested PSU

450 W

1x DVI 1x mini-DisplayPort 1.0

Outputs

1x HDMI 2.0b 3x DisplayPort 1.4a

2x 6-pin

Power Connectors

1x 8-pin

Graphics Processor

RV770

GPU Name

Polaris 20

RV770 XT Mac (215-0669080)

GPU Variant

Polaris 20 XTX (215-0910038)

TeraScale

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

55 nm

Process Size

14 nm

0.956 billion

Transistors

5.7 billion

256 mm²

Die Size

232 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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