GPU Comparison

A

AMD

RADEON

AMD Radeon RX 550X

CORE STATE Lexa

VRAM 4 GB

CLOCK SPEED 1183 MHz

TDP 50 W

BUS WIDTH 128 bit

ARCHITECTURE GCN 4.0

nm

PROCESS 14 nm

LAUNCH DATE 2018

VS

A

AMD

RADEON

Radeon RX 580

CORE STATE Polaris 20

VRAM 8 GB

CLOCK SPEED 1340 MHz

TDP 185 W

BUS WIDTH 256 bit

ARCHITECTURE GCN 4.0

nm

PROCESS 14 nm

LAUNCH DATE 2017

PERFORMANCE BENCHMARKS

geekbench_opencl

9,025

37,453

geekbench_vulkan

11,165

45,173

3dmark_3dmark_steel_nomad_dx12

N/A

1,005

geekbench_metal

N/A

52,176

passmark_directx_10

N/A

46

passmark_directx_11

N/A

60

passmark_directx_12

N/A

43

passmark_directx_9

N/A

124

passmark_g2d

N/A

769

passmark_g3d

N/A

8,813

passmark_gpu_compute

N/A

3,488

DETAILED SPECIFICATIONS

SPECIFICATION

RX 550X

RX 580

Core Specs

Shading Units

512

2,304 +350.0%

Shaders

512

2,304 +350.0%

TMUs

32

144 +350.0%

ROPs

16

32 +100.0%

Compute Units

8

36 +350.0%

Clocks

Base Clock

1100 MHz

1257 MHz

Boost Clock

1183 MHz

1340 MHz

Memory Clock

1500 MHz 6 Gbps effective

2000 MHz 8 Gbps effective

Memory

Memory Size

4 GB

8 GB

VRAM (MB)

4,096

8,192 +100.0%

Memory Type

GDDR5

GDDR5

Memory Bus

128 bit

256 bit

Bandwidth

96.00 GB/s

256.0 GB/s

Cache

L1 Cache

16 KB (per CU)

16 KB (per CU)

L2 Cache

512 KB

2 MB

Performance

Pixel Rate

18.93 GPixel/s

42.88 GPixel/s

Texture Rate

37.86 GTexel/s

193.0 GTexel/s

FP32 (TFLOPS)

1,211.4 GFLOPS

6.175 TFLOPS

FP64 (TFLOPS)

75.71 GFLOPS (1:16)

385.9 GFLOPS (1:16)

FP16 (TFLOPS)

1,211.4 GFLOPS (1:1)

6.175 TFLOPS (1:1)

Power

TDP

50 W

185 W

TDP (W)

50

185 +270.0%

Suggested PSU

250 W

450 W

Power Connectors

None

1x 8-pin

Architecture

Architecture

GCN 4.0

GCN 4.0

GPU Name

Lexa

Polaris 20

Generation

Polaris (RX 500X)

Polaris (RX 500)

Process Size

14 nm

14 nm

Transistors

2,200 million

5,700 million

Die Size

103 mm²

232 mm²

Foundry

GlobalFoundries

GlobalFoundries

Density

21.4M / mm²

24.6M / mm²

API Support

DirectX

12 (12_0)

12 (12_0)

OpenGL

4.6

4.6

Vulkan

1.3

1.3

OpenCL

2.1

2.1

Shader Model

6.7

6.7

Physical

Slot Width

Dual-slot

Dual-slot

Length

145 mm 5.7 inches

241 mm 9.5 inches

Outputs

1x DVI1x HDMI 2.0b1x DisplayPort 1.4a

1x HDMI 2.0b3x DisplayPort 1.4a

Bus Interface

PCIe 3.0 x8

PCIe 3.0 x16

Other

Launch Price

—

229 USD

Production

End-of-life

End-of-life

Predecessor

Polaris

Arctic Islands

Successor

Vega

Vega

View Radeon RX 550X Details View Radeon RX 580 Details