AMD Radeon HD 6870 X2 vs AMD Radeon RX 470D

VS

AMD Radeon HD 6870 X2

AMD Radeon RX 470D

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 X2 and 4GB VRAM Radeon RX 470D to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 470D 's Advantages

Released 5 years and 3 months late

Boost Clock1206MHz

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (211.2GB/s vs 134.4GB/s)

672 additional rendering cores

Lower TDP (120W vs 300W)

Score

Benchmark

FP32 (float)

Radeon HD 6870 X2

2.016 TFLOPS

Radeon RX 470D +114%

4.322 TFLOPS

Radeon HD 6870 X2

VS

Radeon RX 470D

Graphics Card

Jul 2011

Release Date

Oct 2016

Northern Islands

Generation

Arctic Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

926 MHz

-

Boost Clock

1206 MHz

1050 MHz

Memory Clock

1650 MHz

Memory

1024MB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

134.4GB/s

Bandwidth

211.2GB/s

Render Config

14

Compute Units

28

-

1120

Shading Units

1792

56

TMUs

112

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

135.1 GTexel/s

-

FP16 (half)

4.322 TFLOPS

2.016 TFLOPS

FP32 (float)

4.322 TFLOPS

-

FP64 (double)

270.1 GFLOPS

Board Design

300W

TDP

120W

700 W

Suggested PSU

300 W

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

Outputs

1x HDMI 2.0b 3x DisplayPort 1.4a

-

Power Connectors

1x 6-pin

Graphics Processor

Barts

GPU Name

Ellesmere

Barts XT (215-0798000)

GPU Variant

Polaris 10 PROD

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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