AMD Radeon 550X 640SP vs AMD Radeon 540

VS

AMD Radeon 550X 640SP

AMD Radeon 540

We compared two Desktop platform GPUs: 4GB VRAM Radeon 550X 640SP and 1024MB VRAM AMD Radeon 540 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 late

Boost Clock1071MHz

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (48.00GB/s vs 24.00GB/s)

256 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon 550X 640SP +50%

1.371 TFLOPS

AMD Radeon 540

0.908 TFLOPS

Radeon 550X 640SP

VS

AMD Radeon 540

Graphics Card

Apr 2018

Release Date

Apr 2017

Polaris

Generation

Polaris

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

1019 MHz

Base Clock

-

1071 MHz

Boost Clock

-

1500 MHz

Memory Clock

1500 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

32bit

48.00GB/s

Bandwidth

24.00GB/s

Render Config

10

Compute Units

6

-

640

Shading Units

384

40

TMUs

24

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

17.14 GPixel/s

Pixel Rate

18.93 GPixel/s

42.84 GTexel/s

Texture Rate

28.39 GTexel/s

1371 GFLOPS

FP16 (half)

908.5 GFLOPS

1371 GFLOPS

FP32 (float)

908.5 GFLOPS

85.68 GFLOPS

FP64 (double)

56.78 GFLOPS

Board Design

50W

TDP

50W

250 W

Suggested PSU

250 W

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

Outputs

2x DisplayPort 1.4a

None

Power Connectors

None

Graphics Processor

Lexa

GPU Name

Lexa

Lexa PRO (215-0904018)

GPU Variant

Lexa PRO (215-0904018)

GCN 4.0

Architecture

GCN 4.0

GlobalFoundries

Foundry

GlobalFoundries

14 nm

Process Size

14 nm

2.2 billion

Transistors

2.2 billion

103 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

1.3

-

6.4

Shader Model

6.7

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