AMD Radeon HD 8870 OEM vs AMD Radeon RX 570

VS

AMD Radeon HD 8870 OEM

AMD Radeon RX 570

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 8870 OEM and 4GB VRAM Radeon RX 570 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 570 's Advantages

Released 4 years and 3 months late

Boost Clock1244MHz

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (224.0GB/s vs 153.6GB/s)

768 additional rendering cores

Lower TDP (150W vs 175W)

Score

Benchmark

FP32 (float)

Radeon HD 8870 OEM

2.56 TFLOPS

Radeon RX 570 +99%

5.095 TFLOPS

Radeon HD 8870 OEM

VS

Radeon RX 570

Graphics Card

Jan 2013

Release Date

Apr 2017

Sea Islands

Generation

Polaris

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1168 MHz

-

Boost Clock

1244 MHz

1200 MHz

Memory Clock

1750 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

153.6GB/s

Bandwidth

224.0GB/s

Render Config

20

Compute Units

32

-

1280

Shading Units

2048

80

TMUs

128

32

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

2 MB

-

Theoretical Performance

32.00 GPixel/s

Pixel Rate

39.81 GPixel/s

80.00 GTexel/s

Texture Rate

159.2 GTexel/s

-

FP16 (half)

5.095 TFLOPS

2.560 TFLOPS

FP32 (float)

5.095 TFLOPS

160.0 GFLOPS

FP64 (double)

318.5 GFLOPS

Board Design

175W

TDP

150W

450 W

Suggested PSU

450 W

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

Outputs

1x DVI 1x HDMI 2.0b 3x DisplayPort 1.4a

2x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

Pitcairn

GPU Name

Polaris 20

Pitcairn XT (215-0828047)

GPU Variant

Polaris 20 XL (215-0910052)

GCN 1.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

2.8 billion

Transistors

5.7 billion

212 mm²

Die Size

232 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.2

OpenCL

2.1

1.2

Vulkan

1.2

-

5.1

Shader Model

6.4

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