AMD Radeon HD 7870 GHz Edition vs AMD Radeon RX 470

VS

AMD Radeon HD 7870 GHz Edition AMD Radeon RX 470

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7870 GHz Edition and 4GB VRAM Radeon RX 470 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 470 's Advantages

Released 4 years and 5 months late

Boost Clock1206MHz

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (211.2GB/s vs 153.6GB/s)

768 additional rendering cores

Lower TDP (120W vs 175W)

Score

Benchmark

FP32 (float)

Radeon HD 7870 GHz Edition

2.56 TFLOPS

Radeon RX 470 +92%

4.94 TFLOPS

Radeon HD 7870 GHz Edition

VS

Radeon RX 470

Graphics Card

Mar 2012

Release Date

Aug 2016

Southern Islands

Generation

Arctic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

926 MHz

-

Boost Clock

1206 MHz

1200 MHz

Memory Clock

1650 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

153.6GB/s

Bandwidth

211.2GB/s

Render Config

-

SM Count

-

20

Compute Units

32

1280

Shading Units

2048

80

TMUs

128

32

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

2 MB

Theoretical Performance

32.00 GPixel/s

Pixel Rate

38.59 GPixel/s

80.00 GTexel/s

Texture Rate

154.4 GTexel/s

-

FP16 (half)

4.940 TFLOPS

2.560 TFLOPS

FP32 (float)

4.940 TFLOPS

160.0 GFLOPS

FP64 (double)

308.7 GFLOPS

Graphics Processor

Pitcairn

GPU Name

Ellesmere

Pitcairn XT (215-0828047)

GPU Variant

Polaris 10 PRO (215-0876204)

GCN 1.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

2.8 billion

Transistors

5.7 billion

212 mm²

Die Size

232 mm²

Board Design

175W

TDP

120W

450 W

Suggested PSU

300 W

1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

Outputs

1x HDMI 2.0b 3x DisplayPort 1.4a

2x 6-pin

Power Connectors

1x 6-pin

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.2

OpenCL

2.1

1.2

Vulkan

1.2

-

CUDA

-

5.1

Shader Model

6.4

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