AMD Radeon HD 6870 vs AMD Radeon RX 570 X2

VS

AMD Radeon HD 6870

AMD Radeon RX 570 X2

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 and 8GB VRAM Radeon RX 570 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6870 's Advantages

Lower TDP (151W vs 180W)

AMD Radeon RX 570 X2 's Advantages

Boost Clock1206MHz

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (268.8GB/s vs 134.4GB/s)

928 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6870

2.016 TFLOPS

Radeon RX 570 X2 +145%

4.94 TFLOPS

Radeon HD 6870

VS

Radeon RX 570 X2

Graphics Card

Oct 2010

Release Date

Unknown

Northern Islands

Generation

Mining GPUs

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1120 MHz

-

Boost Clock

1206 MHz

1050 MHz

Memory Clock

2100 MHz

Memory

1024MB

Memory Size

8GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

134.4GB/s

Bandwidth

268.8GB/s

Render Config

14

Compute Units

32

-

1120

Shading Units

2048

56

TMUs

128

32

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

2 MB

-

Theoretical Performance

28.80 GPixel/s

Pixel Rate

38.59 GPixel/s

50.40 GTexel/s

Texture Rate

154.4 GTexel/s

-

FP16 (half)

4.940 TFLOPS

2.016 TFLOPS

FP32 (float)

4.940 TFLOPS

-

FP64 (double)

308.7 GFLOPS

Board Design

151W

TDP

180W

450 W

Suggested PSU

450 W

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

Outputs

1x HDMI 2.0b

2x 6-pin

Power Connectors

2x 8-pin

Graphics Processor

Barts

GPU Name

Polaris 20

Barts XT (215-0798000)

GPU Variant

Polaris 20 XL (215-0910052)

TeraScale 2

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

40 nm

Process Size

14 nm

1.7 billion

Transistors

5.7 billion

255 mm²

Die Size

232 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (12_0)

4.4

OpenGL

4.6

1.2

OpenCL

2.1

N/A

Vulkan

1.2

-

5.0

Shader Model

6.4

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