AMD Radeon HD 6790 vs AMD Radeon RX 560X

VS

AMD Radeon HD 6790

AMD Radeon RX 560X

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

Main Differences

AMD Radeon HD 6790 's Advantages

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

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)

Score

Benchmark

FP32 (float)

Radeon HD 6790

1.344 TFLOPS

Radeon RX 560X +94%

2.611 TFLOPS

Radeon HD 6790

VS

Radeon RX 560X

Graphics Card

Apr 2011

Release Date

Apr 2018

Northern Islands

Generation

Polaris

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1175 MHz

-

Boost Clock

1275 MHz

1050 MHz

Memory Clock

1750 MHz

Memory

1024MB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

134.4GB/s

Bandwidth

112.0GB/s

Render Config

10

Compute Units

16

-

800

Shading Units

1024

40

TMUs

64

16

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

1024 KB

-

Theoretical Performance

13.44 GPixel/s

Pixel Rate

20.40 GPixel/s

33.60 GTexel/s

Texture Rate

81.60 GTexel/s

-

FP16 (half)

2.611 TFLOPS

1344 GFLOPS

FP32 (float)

2.611 TFLOPS

-

FP64 (double)

163.2 GFLOPS

Board Design

150W

TDP

75W

450 W

Suggested PSU

250 W

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

Outputs

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

2x 6-pin

Power Connectors

None

Graphics Processor

Barts

GPU Name

Polaris 21

Barts LE (215-0798002)

GPU Variant

Polaris 21 XT (215-0908004)

TeraScale 2

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

40 nm

Process Size

14 nm

1.7 billion

Transistors

3 billion

255 mm²

Die Size

123 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (12_0)

4.4

OpenGL

4.6

1.2

OpenCL

2.1

N/A

Vulkan

1.2

-

5.0

Shader Model

6.4

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