AMD Radeon RX 480 vs AMD Radeon 550X 640SP

VS

AMD Radeon RX 480

AMD Radeon 550X 640SP

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 480 and 4GB VRAM Radeon 550X 640SP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 480 '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

AMD Radeon 550X 640SP 's Advantages

Released 1 years and 10 months late

Lower TDP (50W vs 150W)

Score

Benchmark

FP32 (float)

Radeon RX 480 +325%

5.834 TFLOPS

Radeon 550X 640SP

1.371 TFLOPS

Radeon RX 480

VS

Radeon 550X 640SP

Graphics Card

Jun 2016

Release Date

Apr 2018

Arctic Islands

Generation

Polaris

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

1120 MHz

Base Clock

1019 MHz

1266 MHz

Boost Clock

1071 MHz

2000 MHz

Memory Clock

1500 MHz

Memory

8GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

64bit

256.0GB/s

Bandwidth

48.00GB/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

256 KB

-

Theoretical Performance

40.51 GPixel/s

Pixel Rate

17.14 GPixel/s

182.3 GTexel/s

Texture Rate

42.84 GTexel/s

5.834 TFLOPS

FP16 (half)

1371 GFLOPS

5.834 TFLOPS

FP32 (float)

1371 GFLOPS

364.6 GFLOPS

FP64 (double)

85.68 GFLOPS

Board Design

150W

TDP

50W

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 6-pin

Power Connectors

None

Graphics Processor

Ellesmere

GPU Name

Lexa

Polaris 10 XT (215-0876184)

GPU Variant

Lexa PRO (215-0904018)

GCN 4.0

Architecture

GCN 4.0

GlobalFoundries

Foundry

GlobalFoundries

14 nm

Process Size

14 nm

5.7 billion

Transistors

2.2 billion

232 mm²

Die Size

103 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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