AMD Radeon R9 255 OEM vs AMD Radeon Pro W6400

VS

AMD Radeon R9 255 OEM AMD Radeon Pro W6400

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 255 OEM and 4GB VRAM Radeon Pro W6400 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro W6400 's Advantages

Released 8 years and 1 months late

Boost Clock has increased by 151% (2331MHz vs 930MHz)

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (112.0GB/s vs 73.60GB/s)

256 additional rendering cores

Lower TDP (50W vs 65W)

Score

Benchmark

FP32 (float)

Radeon R9 255 OEM

0.952 TFLOPS

Radeon Pro W6400 +276%

3.58 TFLOPS

Radeon R9 255 OEM

VS

Radeon Pro W6400

Graphics Card

Dec 2013

Release Date

Jan 2022

Volcanic Islands

Generation

Radeon Pro

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x4

Clock Speeds

900 MHz

Base Clock

2331 MHz

930 MHz

Boost Clock

2331 MHz

1150 MHz

Memory Clock

1750 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR6

128bit

Memory Bus

64bit

73.60GB/s

Bandwidth

112.0GB/s

Render Config

-

SM Count

-

8

Compute Units

12

512

Shading Units

768

32

TMUs

48

16

ROPs

32

-

Tensor Cores

-

RT Cores

12

16 KB (per CU)

L1 Cache

128 KB per Array

256 KB

L2 Cache

1024 KB

Theoretical Performance

14.88 GPixel/s

Pixel Rate

74.59 GPixel/s

29.76 GTexel/s

Texture Rate

111.9 GTexel/s

-

FP16 (half)

7.161 TFLOPS

952.3 GFLOPS

FP32 (float)

3.580 TFLOPS

59.52 GFLOPS

FP64 (double)

223.8 GFLOPS

Graphics Processor

Cape Verde

GPU Name

Navi 24

Cape Verde PRX

GPU Variant

Navi 24 XL-W

GCN 1.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

6 nm

1.5 billion

Transistors

5.4 billion

123 mm²

Die Size

107 mm²

Board Design

65W

TDP

50W

250 W

Suggested PSU

250 W

No outputs

Outputs

2x DisplayPort 1.4a

1x 6-pin

Power Connectors

None

Graphics Features

12 (11_1)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

1.2

OpenCL

2.2

1.2

Vulkan

1.3

-

CUDA

-

5.1

Shader Model

6.6

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