AMD Radeon RX 580 vs AMD Radeon R9 270 1024SP

VS

AMD Radeon RX 580

AMD Radeon R9 270 1024SP

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 580 and 2GB VRAM Radeon R9 270 1024SP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 580 's Advantages

Released 2 years and 1 months late

Boost Clock has increased by 45% (1340MHz vs 925MHz)

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (256.0GB/s vs 153.6GB/s)

1280 additional rendering cores

AMD Radeon R9 270 1024SP 's Advantages

Lower TDP (150W vs 185W)

Score

Benchmark

FP32 (float)

Radeon RX 580 +226%

6.175 TFLOPS

Radeon R9 270 1024SP

1.894 TFLOPS

Radeon RX 580

VS

Radeon R9 270 1024SP

Graphics Card

Apr 2017

Release Date

Mar 2015

Polaris

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1257 MHz

Base Clock

900 MHz

1340 MHz

Boost Clock

925 MHz

2000 MHz

Memory Clock

1200 MHz

Memory

8GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

256.0GB/s

Bandwidth

153.6GB/s

Render Config

36

Compute Units

16

-

2304

Shading Units

1024

144

TMUs

64

32

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

512 KB

-

Theoretical Performance

42.88 GPixel/s

Pixel Rate

29.60 GPixel/s

193.0 GTexel/s

Texture Rate

59.20 GTexel/s

6.175 TFLOPS

FP16 (half)

-

6.175 TFLOPS

FP32 (float)

1.894 TFLOPS

385.9 GFLOPS

FP64 (double)

118.4 GFLOPS

Board Design

185W

TDP

150W

450 W

Suggested PSU

450 W

1x HDMI 2.0b 3x DisplayPort 1.4a

Outputs

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

1x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Polaris 20

GPU Name

Pitcairn

Polaris 20 XTX (215-0910038)

GPU Variant

Pitcairn PRO (215-0828062)

GCN 4.0

Architecture

GCN 1.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

5.7 billion

Transistors

2.8 billion

232 mm²

Die Size

212 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

1.2

Vulkan

1.2

-

6.4

Shader Model

5.1

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