AMD Radeon HD 6790 vs AMD Radeon RX 580G

VS

AMD Radeon HD 6790

AMD Radeon RX 580G

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6790 and 8GB VRAM Radeon RX 580G to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6790 's Advantages

Lower TDP (150W vs 185W)

AMD Radeon RX 580G 's Advantages

Released 7 years and 6 months late

Boost Clock1330MHz

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (256.0GB/s vs 134.4GB/s)

1504 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6790

1.344 TFLOPS

Radeon RX 580G +356%

6.129 TFLOPS

Radeon HD 6790

VS

Radeon RX 580G

Graphics Card

Apr 2011

Release Date

Oct 2018

Northern Islands

Generation

Polaris

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1257 MHz

-

Boost Clock

1330 MHz

1050 MHz

Memory Clock

2000 MHz

Memory

1024MB

Memory Size

8GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

134.4GB/s

Bandwidth

256.0GB/s

Render Config

10

Compute Units

36

-

800

Shading Units

2304

40

TMUs

144

16

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

2 MB

-

Theoretical Performance

13.44 GPixel/s

Pixel Rate

42.56 GPixel/s

33.60 GTexel/s

Texture Rate

191.5 GTexel/s

-

FP16 (half)

6.129 TFLOPS

1344 GFLOPS

FP32 (float)

6.129 TFLOPS

-

FP64 (double)

383.0 GFLOPS

Board Design

150W

TDP

185W

450 W

Suggested PSU

450 W

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

Outputs

1x HDMI 2.0b 3x DisplayPort 1.4a

2x 6-pin

Power Connectors

1x 8-pin

Graphics Processor

Barts

GPU Name

Polaris 20

Barts LE (215-0798002)

GPU Variant

Polaris 20 XTX (215-0910038)

TeraScale 2

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

40 nm

Process Size

14 nm

1.7 billion

Transistors

5.7 billion

255 mm²

Die Size

232 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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