AMD Radeon RX 560X vs ATI Radeon HD 3870 AGP

VS

AMD Radeon RX 560X

ATI Radeon HD 3870 AGP

We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 560X and 512MB VRAM Radeon HD 3870 AGP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 560X 's Advantages

Boost Clock1275MHz

More VRAM (4GB vs 512GB)

Larger VRAM bandwidth (112.0GB/s vs 72.06GB/s)

704 additional rendering cores

Lower TDP (75W vs 106W)

Score

Benchmark

FP32 (float)

Radeon RX 560X +425%

2.611 TFLOPS

Radeon HD 3870 AGP

0.497 TFLOPS

Radeon RX 560X

VS

Radeon HD 3870 AGP

Graphics Card

Apr 2018

Release Date

Unknown

Polaris

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

AGP 8x

Clock Speeds

1175 MHz

Base Clock

-

1275 MHz

Boost Clock

-

1750 MHz

Memory Clock

1126 MHz

Memory

4GB

Memory Size

512MB

GDDR5

Memory Type

GDDR4

128bit

Memory Bus

256bit

112.0GB/s

Bandwidth

72.06GB/s

Render Config

16

Compute Units

4

-

1024

Shading Units

320

64

TMUs

16

ROPs

16

-

16 KB (per CU)

L1 Cache

-

1024 KB

L2 Cache

256 KB

-

Theoretical Performance

20.40 GPixel/s

Pixel Rate

12.43 GPixel/s

81.60 GTexel/s

Texture Rate

12.43 GTexel/s

2.611 TFLOPS

FP16 (half)

-

2.611 TFLOPS

FP32 (float)

497.3 GFLOPS

163.2 GFLOPS

FP64 (double)

99.46 GFLOPS

Board Design

75W

TDP

106W

250 W

Suggested PSU

300 W

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

Outputs

2x DVI 1x S-Video

None

Power Connectors

1x 8-pin

Graphics Processor

Polaris 21

GPU Name

RV670

Polaris 21 XT (215-0908004)

GPU Variant

RV670 XT (215-0708005)

GCN 4.0

Architecture

TeraScale

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

55 nm

3 billion

Transistors

0.666 billion

123 mm²

Die Size

192 mm²

Graphics Features

12 (12_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3 (full) 4.0 (partial)

2.1

OpenCL

N/A

1.2

Vulkan

N/A

-

6.4

Shader Model

4.1

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