AMD Radeon RX 580 vs AMD Radeon RX 550 640SP

VS

AMD Radeon RX 580

AMD Radeon RX 550 640SP

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 580 and 2GB VRAM Radeon RX 550 640SP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 580 's Advantages

Boost Clock has increased by 25% (1340MHz vs 1071MHz)

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (256.0GB/s vs 96.00GB/s)

1664 additional rendering cores

AMD Radeon RX 550 640SP 's Advantages

Released 6 months late

Lower TDP (60W vs 185W)

Score

Benchmark

FP32 (float)

Radeon RX 580 +350%

6.175 TFLOPS

Radeon RX 550 640SP

1.371 TFLOPS

Radeon RX 580

VS

Radeon RX 550 640SP

Graphics Card

Apr 2017

Release Date

Oct 2017

Polaris

Generation

Polaris

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

1257 MHz

Base Clock

1019 MHz

1340 MHz

Boost Clock

1071 MHz

2000 MHz

Memory Clock

1500 MHz

Memory

8GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

256.0GB/s

Bandwidth

96.00GB/s

Render Config

36

Compute Units

10

-

2304

Shading Units

640

144

TMUs

40

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

1024 KB

-

Theoretical Performance

42.88 GPixel/s

Pixel Rate

17.14 GPixel/s

193.0 GTexel/s

Texture Rate

42.84 GTexel/s

6.175 TFLOPS

FP16 (half)

1371 GFLOPS

6.175 TFLOPS

FP32 (float)

1371 GFLOPS

385.9 GFLOPS

FP64 (double)

85.68 GFLOPS

Board Design

185W

TDP

60W

450 W

Suggested PSU

250 W

1x HDMI 2.0b 3x DisplayPort 1.4a

Outputs

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

1x 8-pin

Power Connectors

None

Graphics Processor

Polaris 20

GPU Name

Baffin

Polaris 20 XTX (215-0910038)

GPU Variant

Baffin LE

GCN 4.0

Architecture

GCN 4.0

GlobalFoundries

Foundry

GlobalFoundries

14 nm

Process Size

14 nm

5.7 billion

Transistors

3 billion

232 mm²

Die Size

123 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.2

Vulkan

1.2

-

6.4

Shader Model

6.4

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