AMD Radeon 550X 640SP vs AMD Radeon RX 580 OEM

VS

AMD Radeon 550X 640SP

AMD Radeon RX 580 OEM

We compared two Desktop platform GPUs: 4GB VRAM Radeon 550X 640SP and 8GB VRAM Radeon RX 580 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon 550X 640SP 's Advantages

Released 1 years and 10 months late

Lower TDP (50W vs 150W)

AMD Radeon RX 580 OEM 's Advantages

Boost Clock has increased by 18% (1266MHz vs 1071MHz)

More VRAM (8GB vs 4GB)

Larger VRAM bandwidth (256.0GB/s vs 48.00GB/s)

1664 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon 550X 640SP

1.371 TFLOPS

Radeon RX 580 OEM +325%

5.834 TFLOPS

Radeon 550X 640SP

VS

Radeon RX 580 OEM

Graphics Card

Apr 2018

Release Date

Jun 2016

Polaris

Generation

Polaris

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1019 MHz

Base Clock

1120 MHz

1071 MHz

Boost Clock

1266 MHz

1500 MHz

Memory Clock

2000 MHz

Memory

4GB

Memory Size

8GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

256bit

48.00GB/s

Bandwidth

256.0GB/s

Render Config

10

Compute Units

36

-

640

Shading Units

2304

40

TMUs

144

16

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

2 MB

-

Theoretical Performance

17.14 GPixel/s

Pixel Rate

40.51 GPixel/s

42.84 GTexel/s

Texture Rate

182.3 GTexel/s

1371 GFLOPS

FP16 (half)

5.834 TFLOPS

1371 GFLOPS

FP32 (float)

5.834 TFLOPS

85.68 GFLOPS

FP64 (double)

364.6 GFLOPS

Board Design

50W

TDP

150W

250 W

Suggested PSU

450 W

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

Outputs

1x HDMI 2.0b 3x DisplayPort 1.4a

None

Power Connectors

1x 6-pin

Graphics Processor

Lexa

GPU Name

Ellesmere

Lexa PRO (215-0904018)

GPU Variant

Polaris 10 XT (215-0876184)

GCN 4.0

Architecture

GCN 4.0

GlobalFoundries

Foundry

GlobalFoundries

14 nm

Process Size

14 nm

2.2 billion

Transistors

5.7 billion

103 mm²

Die Size

232 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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