AMD Radeon RX 580 2048SP vs AMD Radeon HD 6990

VS

AMD Radeon RX 580 2048SP

AMD Radeon HD 6990

We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 580 2048SP 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 580 2048SP 's Advantages

Released 7 years and 7 months late

Boost Clock1284MHz

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (224.0GB/s vs 160.0GB/s)

512 additional rendering cores

Lower TDP (150W vs 375W)

Score

Benchmark

FP32 (float)

Radeon RX 580 2048SP +106%

5.259 TFLOPS

Radeon HD 6990

2.55 TFLOPS

Radeon RX 580 2048SP

VS

Radeon HD 6990

Graphics Card

Oct 2018

Release Date

Mar 2011

Polaris

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1168 MHz

Base Clock

-

1284 MHz

Boost Clock

-

1750 MHz

Memory Clock

1250 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

224.0GB/s

Bandwidth

160.0GB/s

Render Config

32

Compute Units

24

-

2048

Shading Units

1536

128

TMUs

96

32

ROPs

32

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

2 MB

L2 Cache

512 KB

-

Theoretical Performance

41.09 GPixel/s

Pixel Rate

26.56 GPixel/s

164.4 GTexel/s

Texture Rate

79.68 GTexel/s

5.259 TFLOPS

FP16 (half)

-

5.259 TFLOPS

FP32 (float)

2.550 TFLOPS

328.7 GFLOPS

FP64 (double)

637.4 GFLOPS

Board Design

150W

TDP

375W

450 W

Suggested PSU

750 W

1x DVI 1x HDMI 2.0b 3x DisplayPort 1.4a

Outputs

1x DVI 4x mini-DisplayPort 1.2

1x 8-pin

Power Connectors

2x 8-pin

Graphics Processor

Polaris 20

GPU Name

Antilles

Polaris 20 XL (215-0910052)

GPU Variant

Antilles XT (215-0807027)

GCN 4.0

Architecture

TeraScale 3

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

40 nm

5.7 billion

Transistors

2.64 billion

232 mm²

Die Size

389 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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