AMD Radeon RX 560 vs ATI Radeon HD 4855

VS

AMD Radeon RX 560

ATI Radeon HD 4855

We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 560 and 512MB VRAM Radeon HD 4855 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 560 's Advantages

Released 7 years and 3 months late

Boost Clock1275MHz

More VRAM (4GB vs 512GB)

384 additional rendering cores

Lower TDP (75W vs 110W)

ATI Radeon HD 4855 's Advantages

Larger VRAM bandwidth (115.2GB/s vs 112.0GB/s)

Score

Benchmark

FP32 (float)

Radeon RX 560 +254%

2.611 TFLOPS

Radeon HD 4855

0.736 TFLOPS

Radeon RX 560

VS

Radeon HD 4855

Graphics Card

Apr 2017

Release Date

Jan 2010

Polaris

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

1175 MHz

Base Clock

-

1275 MHz

Boost Clock

-

1750 MHz

Memory Clock

900 MHz

Memory

4GB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

112.0GB/s

Bandwidth

115.2GB/s

Render Config

16

Compute Units

8

-

1024

Shading Units

640

64

TMUs

32

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

256 KB

-

Theoretical Performance

20.40 GPixel/s

Pixel Rate

9.200 GPixel/s

81.60 GTexel/s

Texture Rate

18.40 GTexel/s

2.611 TFLOPS

FP16 (half)

-

2.611 TFLOPS

FP32 (float)

736.0 GFLOPS

163.2 GFLOPS

FP64 (double)

147.2 GFLOPS

Board Design

75W

TDP

110W

250 W

Suggested PSU

300 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

None

Power Connectors

1x 6-pin

Graphics Processor

Polaris 21

GPU Name

RV770

Polaris 21 XT (215-0908004)

GPU Variant

RV770 PRO (215-0669065)

GCN 4.0

Architecture

TeraScale

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

55 nm

3 billion

Transistors

0.956 billion

123 mm²

Die Size

256 mm²

Graphics Features

12 (12_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.1

OpenCL

1.1

1.2

Vulkan

N/A

-

6.4

Shader Model

4.1

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