AMD Radeon RX 580G vs AMD Radeon HD 7870 GHz Edition

VS

AMD Radeon RX 580G AMD Radeon HD 7870 GHz Edition

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 580G and 2GB VRAM Radeon HD 7870 GHz Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 580G 's Advantages

Released 6 years and 7 months late

Boost Clock1330MHz

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (256.0GB/s vs 153.6GB/s)

1024 additional rendering cores

AMD Radeon HD 7870 GHz Edition 's Advantages

Lower TDP (175W vs 185W)

Score

Benchmark

FP32 (float)

Radeon RX 580G +139%

6.129 TFLOPS

Radeon HD 7870 GHz Edition

2.56 TFLOPS

Radeon RX 580G

VS

Radeon HD 7870 GHz Edition

Graphics Card

Oct 2018

Release Date

Mar 2012

Polaris

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1257 MHz

Base Clock

-

1330 MHz

Boost Clock

-

2000 MHz

Memory Clock

1200 MHz

Memory

8GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

256.0GB/s

Bandwidth

153.6GB/s

Render Config

-

SM Count

-

36

Compute Units

20

2304

Shading Units

1280

144

TMUs

80

32

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

512 KB

Theoretical Performance

42.56 GPixel/s

Pixel Rate

32.00 GPixel/s

191.5 GTexel/s

Texture Rate

80.00 GTexel/s

6.129 TFLOPS

FP16 (half)

-

6.129 TFLOPS

FP32 (float)

2.560 TFLOPS

383.0 GFLOPS

FP64 (double)

160.0 GFLOPS

Graphics Processor

Polaris 20

GPU Name

Pitcairn

Polaris 20 XTX (215-0910038)

GPU Variant

Pitcairn XT (215-0828047)

GCN 4.0

Architecture

GCN 1.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

5.7 billion

Transistors

2.8 billion

232 mm²

Die Size

212 mm²

Board Design

185W

TDP

175W

450 W

Suggested PSU

450 W

1x HDMI 2.0b 3x DisplayPort 1.4a

Outputs

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

1x 8-pin

Power Connectors

2x 6-pin

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

1.2

Vulkan

1.2

-

CUDA

-

6.4

Shader Model

5.1

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