AMD Radeon RX 560 vs AMD Radeon HD 6990

VS

We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 560 and 2GB VRAM Radeon HD 6990 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 560 's Advantages

Released 6 years and 1 months late

Boost Clock1275MHz

More VRAM (4GB vs 2GB)

Lower TDP (75W vs 375W)

AMD Radeon HD 6990 's Advantages

Larger VRAM bandwidth (160.0GB/s vs 112.0GB/s)

512 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 560 +2%

2.611 TFLOPS

Radeon HD 6990

2.55 TFLOPS

Radeon RX 560

VS

Radeon HD 6990

Graphics Card

Apr 2017

Release Date

Mar 2011

Polaris

Generation

Northern Islands

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

1250 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

112.0GB/s

Bandwidth

160.0GB/s

Render Config

-

SM Count

-

16

Compute Units

24

1024

Shading Units

1536

64

TMUs

96

16

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

1024 KB

L2 Cache

512 KB

Theoretical Performance

20.40 GPixel/s

Pixel Rate

26.56 GPixel/s

81.60 GTexel/s

Texture Rate

79.68 GTexel/s

2.611 TFLOPS

FP16 (half)

-

2.611 TFLOPS

FP32 (float)

2.550 TFLOPS

163.2 GFLOPS

FP64 (double)

637.4 GFLOPS

Graphics Processor

Polaris 21

GPU Name

Antilles

Polaris 21 XT (215-0908004)

GPU Variant

Antilles XT (215-0807027)

GCN 4.0

Architecture

TeraScale 3

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

40 nm

3 billion

Transistors

2.64 billion

123 mm²

Die Size

389 mm²

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 Features

12 (12_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1

OpenCL

1.2

Vulkan

N/A

-

CUDA

-

6.4

Shader Model

5.0

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