AMD Radeon R9 390 X2 vs ATI Radeon HD 4450

VS

AMD Radeon R9 390 X2

ATI Radeon HD 4450

We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390 X2 and 512MB VRAM Radeon HD 4450 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 390 X2 's Advantages

Released 3 years and 10 months late

More VRAM (8GB vs 512GB)

Larger VRAM bandwidth (345.6GB/s vs 6.400GB/s)

2480 additional rendering cores

ATI Radeon HD 4450 's Advantages

Lower TDP (25W vs 580W)

Score

Benchmark

FP32 (float)

Radeon R9 390 X2 +5233%

5.12 TFLOPS

Radeon HD 4450

0.096 TFLOPS

Radeon R9 390 X2

VS

Radeon HD 4450

Graphics Card

Sep 2015

Release Date

Nov 2011

Pirate Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1350 MHz

Memory Clock

400 MHz

Memory

8GB

Memory Size

512MB

GDDR5

Memory Type

DDR2

512bit

Memory Bus

64bit

345.6GB/s

Bandwidth

6.400GB/s

Render Config

40

Compute Units

1

-

2560

Shading Units

80

160

TMUs

8

64

ROPs

4

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

64 KB

-

Theoretical Performance

64.00 GPixel/s

Pixel Rate

2.400 GPixel/s

160.0 GTexel/s

Texture Rate

4.800 GTexel/s

-

5.120 TFLOPS

FP32 (float)

96.00 GFLOPS

640.0 GFLOPS

FP64 (double)

-

Board Design

580W

TDP

25W

950 W

Suggested PSU

200 W

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

Outputs

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

4x 8-pin

Power Connectors

None

Graphics Processor

Grenada

GPU Name

RV710

Grenada PRO (215-0880030)

GPU Variant

RV710 (215-0725016)

GCN 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

6.2 billion

Transistors

0.242 billion

438 mm²

Die Size

73 mm²

Graphics Features

12 (12_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.0

OpenCL

1.1

1.2

Vulkan

N/A

-

6.3

Shader Model

4.1

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