ATI Radeon HD 4450 vs AMD Radeon R9 270 1024SP

VS

ATI Radeon HD 4450

AMD Radeon R9 270 1024SP

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4450 and 2GB VRAM Radeon R9 270 1024SP 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 150W)

AMD Radeon R9 270 1024SP 's Advantages

Released 3 years and 4 months late

Boost Clock925MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (153.6GB/s vs 6.400GB/s)

944 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 4450

0.096 TFLOPS

Radeon R9 270 1024SP +1872%

1.894 TFLOPS

Radeon HD 4450

VS

Radeon R9 270 1024SP

Graphics Card

Nov 2011

Release Date

Mar 2015

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

925 MHz

400 MHz

Memory Clock

1200 MHz

Memory

512MB

Memory Size

2GB

DDR2

Memory Type

GDDR5

64bit

Memory Bus

256bit

6.400GB/s

Bandwidth

153.6GB/s

Render Config

1

Compute Units

16

-

80

Shading Units

1024

8

TMUs

64

4

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

64 KB

L2 Cache

512 KB

-

Theoretical Performance

2.400 GPixel/s

Pixel Rate

29.60 GPixel/s

4.800 GTexel/s

Texture Rate

59.20 GTexel/s

-

96.00 GFLOPS

FP32 (float)

1.894 TFLOPS

-

FP64 (double)

118.4 GFLOPS

Board Design

25W

TDP

150W

200 W

Suggested PSU

450 W

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

Outputs

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

None

Power Connectors

1x 6-pin

Graphics Processor

RV710

GPU Name

Pitcairn

RV710 (215-0725016)

GPU Variant

Pitcairn PRO (215-0828062)

TeraScale

Architecture

GCN 1.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.242 billion

Transistors

2.8 billion

73 mm²

Die Size

212 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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