AMD Radeon RX 550 640SP vs AMD Radeon Sky 500

VS

AMD Radeon RX 550 640SP

AMD Radeon Sky 500

We compared two Desktop platform GPUs: 2GB VRAM Radeon RX 550 640SP and 4GB VRAM Radeon Sky 500 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 550 640SP 's Advantages

Released 4 years and 7 months late

Boost Clock1071MHz

Lower TDP (60W vs 150W)

AMD Radeon Sky 500 's Advantages

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (153.6GB/s vs 96.00GB/s)

640 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 550 640SP

1.371 TFLOPS

Radeon Sky 500 +77%

2.432 TFLOPS

Radeon RX 550 640SP

VS

Radeon Sky 500

Graphics Card

Oct 2017

Release Date

Mar 2013

Polaris

Generation

Radeon Sky

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1019 MHz

Base Clock

-

1071 MHz

Boost Clock

-

1500 MHz

Memory Clock

1200 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

96.00GB/s

Bandwidth

153.6GB/s

Render Config

10

Compute Units

20

-

640

Shading Units

1280

40

TMUs

80

16

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

512 KB

-

Theoretical Performance

17.14 GPixel/s

Pixel Rate

30.40 GPixel/s

42.84 GTexel/s

Texture Rate

76.00 GTexel/s

1371 GFLOPS

FP16 (half)

-

1371 GFLOPS

FP32 (float)

2.432 TFLOPS

85.68 GFLOPS

FP64 (double)

152.0 GFLOPS

Board Design

60W

TDP

150W

250 W

Suggested PSU

450 W

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

Outputs

1x DisplayPort 1.2

None

Power Connectors

1x 6-pin

Graphics Processor

Baffin

GPU Name

Pitcairn

Baffin LE

GPU Variant

Pitcairn XT GL (215-0828073)

GCN 4.0

Architecture

GCN 1.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

3 billion

Transistors

2.8 billion

123 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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