AMD Radeon RX 560X vs AMD Radeon HD 6790

VS

AMD Radeon RX 560X

AMD Radeon HD 6790

We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 560X and 1024MB VRAM Radeon HD 6790 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 560X 's Advantages

Released 7 years late

Boost Clock1275MHz

More VRAM (4GB vs 1024GB)

224 additional rendering cores

Lower TDP (75W vs 150W)

AMD Radeon HD 6790 's Advantages

Larger VRAM bandwidth (134.4GB/s vs 112.0GB/s)

Score

Benchmark

FP32 (float)

Radeon RX 560X +94%

2.611 TFLOPS

Radeon HD 6790

1.344 TFLOPS

Radeon RX 560X

VS

Radeon HD 6790

Graphics Card

Apr 2018

Release Date

Apr 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

1050 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

112.0GB/s

Bandwidth

134.4GB/s

Render Config

16

Compute Units

10

-

1024

Shading Units

800

64

TMUs

40

16

ROPs

16

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

1024 KB

L2 Cache

512 KB

-

Theoretical Performance

20.40 GPixel/s

Pixel Rate

13.44 GPixel/s

81.60 GTexel/s

Texture Rate

33.60 GTexel/s

2.611 TFLOPS

FP16 (half)

-

2.611 TFLOPS

FP32 (float)

1344 GFLOPS

163.2 GFLOPS

FP64 (double)

-

Board Design

75W

TDP

150W

250 W

Suggested PSU

450 W

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

Outputs

2x DVI 1x HDMI 1.3a 1x DisplayPort 1.1

None

Power Connectors

2x 6-pin

Graphics Processor

Polaris 21

GPU Name

Barts

Polaris 21 XT (215-0908004)

GPU Variant

Barts LE (215-0798002)

GCN 4.0

Architecture

TeraScale 2

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

40 nm

3 billion

Transistors

1.7 billion

123 mm²

Die Size

255 mm²

Graphics Features

12 (12_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1

OpenCL

1.2

Vulkan

N/A

-

6.4

Shader Model

5.0

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