AMD Radeon RX 580G vs AMD Radeon HD 7870 XT

VS

AMD Radeon RX 580G

AMD Radeon HD 7870 XT

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

Main Differences

AMD Radeon RX 580G 's Advantages

Released 5 years and 11 months late

Boost Clock has increased by 36% (1330MHz vs 975MHz)

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (256.0GB/s vs 192.0GB/s)

768 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 580G +104%

6.129 TFLOPS

Radeon HD 7870 XT

2.995 TFLOPS

Radeon RX 580G

VS

Radeon HD 7870 XT

Graphics Card

Oct 2018

Release Date

Nov 2012

Polaris

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1257 MHz

Base Clock

925 MHz

1330 MHz

Boost Clock

975 MHz

2000 MHz

Memory Clock

1500 MHz

Memory

8GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

256.0GB/s

Bandwidth

192.0GB/s

Render Config

36

Compute Units

24

-

2304

Shading Units

1536

144

TMUs

96

32

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

512 KB

-

Theoretical Performance

42.56 GPixel/s

Pixel Rate

31.20 GPixel/s

191.5 GTexel/s

Texture Rate

93.60 GTexel/s

6.129 TFLOPS

FP16 (half)

-

6.129 TFLOPS

FP32 (float)

2.995 TFLOPS

383.0 GFLOPS

FP64 (double)

748.8 GFLOPS

Board Design

185W

TDP

185W

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 Processor

Polaris 20

GPU Name

Tahiti

Polaris 20 XTX (215-0910038)

GPU Variant

Tahiti LE (215-0821122)

GCN 4.0

Architecture

GCN 1.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

5.7 billion

Transistors

4.313 billion

232 mm²

Die Size

352 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

1.2

Vulkan

1.2

-

6.4

Shader Model

5.1

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