AMD Radeon R9 255 OEM vs AMD Radeon R7 450 OEM

VS

AMD Radeon R9 255 OEM

AMD Radeon R7 450 OEM

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 255 OEM and 2GB VRAM Radeon R7 450 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 255 OEM 's Advantages

Boost Clock930MHz

Larger VRAM bandwidth (73.60GB/s vs 72.00GB/s)

AMD Radeon R7 450 OEM 's Advantages

Released 2 years and 6 months late

Score

Benchmark

FP32 (float)

Radeon R9 255 OEM

0.952 TFLOPS

Radeon R7 450 OEM

0.947 TFLOPS

Radeon R9 255 OEM

VS

Radeon R7 450 OEM

Graphics Card

Dec 2013

Release Date

Jun 2016

Volcanic Islands

Generation

Arctic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

900 MHz

Base Clock

-

930 MHz

Boost Clock

-

1150 MHz

Memory Clock

1125 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

73.60GB/s

Bandwidth

72.00GB/s

Render Config

8

Compute Units

8

-

512

Shading Units

512

32

TMUs

32

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

14.88 GPixel/s

Pixel Rate

14.80 GPixel/s

29.76 GTexel/s

Texture Rate

29.60 GTexel/s

-

952.3 GFLOPS

FP32 (float)

947.2 GFLOPS

59.52 GFLOPS

FP64 (double)

59.20 GFLOPS

Board Design

65W

TDP

65W

250 W

Suggested PSU

250 W

No outputs

Outputs

1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

1x 6-pin

Power Connectors

None

Graphics Processor

Cape Verde

GPU Name

Cape Verde

Cape Verde PRX

GPU Variant

Cape Verde PRO2

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.5 billion

Transistors

1.5 billion

123 mm²

Die Size

123 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.2

OpenCL

2.1 (1.2)

1.2

Vulkan

1.2.170

-

5.1

Shader Model

6.5 (5.1)

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