ATI Radeon HD 4450 vs AMD Radeon R9 390

VS

ATI Radeon HD 4450

AMD Radeon R9 390

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4450 and 8GB VRAM Radeon R9 390 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 275W)

AMD Radeon R9 390 's Advantages

Released 3 years and 7 months late

More VRAM (8GB vs 512GB)

Larger VRAM bandwidth (384.0GB/s vs 6.400GB/s)

2480 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 4450

0.096 TFLOPS

Radeon R9 390 +5233%

5.12 TFLOPS

Radeon HD 4450

VS

Radeon R9 390

Graphics Card

Nov 2011

Release Date

Jun 2015

Radeon R700

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

400 MHz

Memory Clock

1500 MHz

Memory

512MB

Memory Size

8GB

DDR2

Memory Type

GDDR5

64bit

Memory Bus

512bit

6.400GB/s

Bandwidth

384.0GB/s

Render Config

1

Compute Units

40

-

80

Shading Units

2560

8

TMUs

160

4

ROPs

64

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

64 KB

L2 Cache

1024 KB

-

Theoretical Performance

2.400 GPixel/s

Pixel Rate

64.00 GPixel/s

4.800 GTexel/s

Texture Rate

160.0 GTexel/s

-

96.00 GFLOPS

FP32 (float)

5.120 TFLOPS

-

FP64 (double)

640.0 GFLOPS

Board Design

25W

TDP

275W

200 W

Suggested PSU

600 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 + 1x 8-pin

Graphics Processor

RV710

GPU Name

Grenada

RV710 (215-0725016)

GPU Variant

Grenada PRO (215-0880030)

TeraScale

Architecture

GCN 2.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.242 billion

Transistors

6.2 billion

73 mm²

Die Size

438 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (12_0)

3.3

OpenGL

4.6

1.1

OpenCL

2.0

N/A

Vulkan

1.2

-

4.1

Shader Model

6.3

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