AMD Radeon RX 570 vs AMD Radeon HD 6870

VS

We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 570 and 1024MB VRAM Radeon HD 6870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 570 's Advantages

Released 6 years and 6 months late

Boost Clock1244MHz

More VRAM (4GB vs 1GB)

Larger VRAM bandwidth (224.0GB/s vs 134.4GB/s)

928 additional rendering cores

Lower TDP (150W vs 151W)

Score

Benchmark

FP32 (float)

Radeon RX 570 +152%

5.095 TFLOPS

Radeon HD 6870

2.016 TFLOPS

Radeon RX 570

VS

Radeon HD 6870

Graphics Card

Apr 2017

Release Date

Oct 2010

Polaris

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1168 MHz

Base Clock

-

1244 MHz

Boost Clock

-

1750 MHz

Memory Clock

1050 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

224.0GB/s

Bandwidth

134.4GB/s

Render Config

-

SM Count

-

32

Compute Units

14

2048

Shading Units

1120

128

TMUs

56

32

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

2 MB

L2 Cache

512 KB

Theoretical Performance

39.81 GPixel/s

Pixel Rate

28.80 GPixel/s

159.2 GTexel/s

Texture Rate

50.40 GTexel/s

5.095 TFLOPS

FP16 (half)

-

5.095 TFLOPS

FP32 (float)

2.016 TFLOPS

318.5 GFLOPS

FP64 (double)

-

Graphics Processor

Polaris 20

GPU Name

Barts

Polaris 20 XL (215-0910052)

GPU Variant

Barts XT (215-0798000)

GCN 4.0

Architecture

TeraScale 2

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

40 nm

5.7 billion

Transistors

1.7 billion

232 mm²

Die Size

255 mm²

Board Design

150W

TDP

151W

450 W

Suggested PSU

450 W

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

Outputs

2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1

1x 6-pin

Power Connectors

2x 6-pin

Graphics Features

12 (12_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1

OpenCL

1.2

Vulkan

N/A

-

CUDA

-

6.4

Shader Model

5.0

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