AMD Radeon RX 560 vs AMD Radeon HD 8990 OEM

VS

AMD Radeon RX 560

AMD Radeon HD 8990 OEM

We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 560 and 3GB VRAM Radeon HD 8990 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 560 's Advantages

Released 4 years late

Boost Clock has increased by 28% (1275MHz vs 1000MHz)

More VRAM (4GB vs 3GB)

Lower TDP (75W vs 375W)

AMD Radeon HD 8990 OEM 's Advantages

Larger VRAM bandwidth (288.0GB/s vs 112.0GB/s)

1024 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 560

2.611 TFLOPS

Radeon HD 8990 OEM +56%

4.096 TFLOPS

Radeon RX 560

VS

Radeon HD 8990 OEM

Graphics Card

Apr 2017

Release Date

Apr 2013

Polaris

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1175 MHz

Base Clock

950 MHz

1275 MHz

Boost Clock

1000 MHz

1750 MHz

Memory Clock

1500 MHz

Memory

4GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

384bit

112.0GB/s

Bandwidth

288.0GB/s

Render Config

16

Compute Units

32

-

1024

Shading Units

2048

64

TMUs

128

16

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

768 KB

-

Theoretical Performance

20.40 GPixel/s

Pixel Rate

32.00 GPixel/s

81.60 GTexel/s

Texture Rate

128.0 GTexel/s

2.611 TFLOPS

FP16 (half)

-

2.611 TFLOPS

FP32 (float)

4.096 TFLOPS

163.2 GFLOPS

FP64 (double)

1024 GFLOPS

Board Design

75W

TDP

375W

250 W

Suggested PSU

750 W

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

Outputs

1x DVI 4x mini-DisplayPort 1.2

None

Power Connectors

2x 8-pin

Graphics Processor

Polaris 21

GPU Name

Malta

Polaris 21 XT (215-0908004)

GPU Variant

Malta XT (215-0849026)

GCN 4.0

Architecture

GCN 1.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

3 billion

Transistors

4.313 billion

123 mm²

Die Size

365 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

1.2

Vulkan

1.2

-

6.4

Shader Model

5.1

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