ATI Radeon HD 4450 vs AMD Radeon R9 255 OEM

VS

ATI Radeon HD 4450

AMD Radeon R9 255 OEM

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4450 and 2GB VRAM Radeon R9 255 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4450 's Advantages

Lower TDP (25W vs 65W)

AMD Radeon R9 255 OEM 's Advantages

Released 2 years and 1 months late

Boost Clock930MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (73.60GB/s vs 6.400GB/s)

432 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 4450

0.096 TFLOPS

Radeon R9 255 OEM +891%

0.952 TFLOPS

Radeon HD 4450

VS

Radeon R9 255 OEM

Graphics Card

Nov 2011

Release Date

Dec 2013

Radeon R700

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

900 MHz

-

Boost Clock

930 MHz

400 MHz

Memory Clock

1150 MHz

Memory

512MB

Memory Size

2GB

DDR2

Memory Type

GDDR5

64bit

Memory Bus

128bit

6.400GB/s

Bandwidth

73.60GB/s

Render Config

1

Compute Units

8

-

80

Shading Units

512

8

TMUs

32

4

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

64 KB

L2 Cache

256 KB

-

Theoretical Performance

2.400 GPixel/s

Pixel Rate

14.88 GPixel/s

4.800 GTexel/s

Texture Rate

29.76 GTexel/s

-

96.00 GFLOPS

FP32 (float)

952.3 GFLOPS

-

FP64 (double)

59.52 GFLOPS

Board Design

25W

TDP

65W

200 W

Suggested PSU

250 W

1x DVI 1x HDMI 1.3a 1x DisplayPort 1.0

Outputs

No outputs

None

Power Connectors

1x 6-pin

Graphics Processor

RV710

GPU Name

Cape Verde

RV710 (215-0725016)

GPU Variant

Cape Verde PRX

TeraScale

Architecture

GCN 1.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.242 billion

Transistors

1.5 billion

73 mm²

Die Size

123 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (11_1)

3.3

OpenGL

4.6

1.1

OpenCL

1.2

N/A

Vulkan

1.2

-

4.1

Shader Model

5.1

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