AMD Radeon 540 vs AMD Radeon R9 255 OEM

VS

AMD Radeon 540

AMD Radeon R9 255 OEM

We compared two Desktop platform GPUs: 1024MB VRAM AMD Radeon 540 and 2GB VRAM Radeon R9 255 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon 540 's Advantages

Released 3 years and 4 months late

Lower TDP (50W vs 65W)

AMD Radeon R9 255 OEM 's Advantages

Boost Clock930MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (73.60GB/s vs 24.00GB/s)

128 additional rendering cores

Score

Benchmark

FP32 (float)

AMD Radeon 540

0.908 TFLOPS

Radeon R9 255 OEM +4%

0.952 TFLOPS

AMD Radeon 540

VS

Radeon R9 255 OEM

Graphics Card

Apr 2017

Release Date

Dec 2013

Polaris

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

900 MHz

-

Boost Clock

930 MHz

1500 MHz

Memory Clock

1150 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

32bit

Memory Bus

128bit

24.00GB/s

Bandwidth

73.60GB/s

Render Config

6

Compute Units

8

-

384

Shading Units

512

24

TMUs

32

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

18.93 GPixel/s

Pixel Rate

14.88 GPixel/s

28.39 GTexel/s

Texture Rate

29.76 GTexel/s

908.5 GFLOPS

FP16 (half)

-

908.5 GFLOPS

FP32 (float)

952.3 GFLOPS

56.78 GFLOPS

FP64 (double)

59.52 GFLOPS

Board Design

50W

TDP

65W

250 W

Suggested PSU

250 W

2x DisplayPort 1.4a

Outputs

No outputs

None

Power Connectors

1x 6-pin

Graphics Processor

Lexa

GPU Name

Cape Verde

Lexa PRO (215-0904018)

GPU Variant

Cape Verde PRX

GCN 4.0

Architecture

GCN 1.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

2.2 billion

Transistors

1.5 billion

103 mm²

Die Size

123 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

1.2

1.3

Vulkan

1.2

-

6.7

Shader Model

5.1

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