AMD Radeon RX 470 vs AMD Radeon HD 6870 X2

VS

AMD Radeon RX 470

AMD Radeon HD 6870 X2

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

Main Differences

AMD Radeon RX 470 's Advantages

Released 5 years and 1 months late

Boost Clock1206MHz

More VRAM (4GB vs 1024GB)

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

928 additional rendering cores

Lower TDP (120W vs 300W)

Score

Benchmark

FP32 (float)

Radeon RX 470 +145%

4.94 TFLOPS

Radeon HD 6870 X2

2.016 TFLOPS

Radeon RX 470

VS

Radeon HD 6870 X2

Graphics Card

Aug 2016

Release Date

Jul 2011

Arctic Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

926 MHz

Base Clock

-

1206 MHz

Boost Clock

-

1650 MHz

Memory Clock

1050 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

211.2GB/s

Bandwidth

134.4GB/s

Render Config

32

Compute Units

14

-

2048

Shading Units

1120

128

TMUs

56

32

ROPs

32

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

2 MB

L2 Cache

512 KB

-

Theoretical Performance

38.59 GPixel/s

Pixel Rate

28.80 GPixel/s

154.4 GTexel/s

Texture Rate

50.40 GTexel/s

4.940 TFLOPS

FP16 (half)

-

4.940 TFLOPS

FP32 (float)

2.016 TFLOPS

308.7 GFLOPS

FP64 (double)

-

Board Design

120W

TDP

300W

300 W

Suggested PSU

700 W

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

-

Graphics Processor

Ellesmere

GPU Name

Barts

Polaris 10 PRO (215-0876204)

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

Graphics Features

12 (12_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1

OpenCL

1.2

Vulkan

N/A

-

6.4

Shader Model

5.0

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