ATI Radeon HD 4770 vs ATI Radeon HD 5450 PCI

VS

ATI Radeon HD 4770

ATI Radeon HD 5450 PCI

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4770 and 512MB VRAM Radeon HD 5450 PCI to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4770 's Advantages

Larger VRAM bandwidth (51.20GB/s vs 5.328GB/s)

560 additional rendering cores

ATI Radeon HD 5450 PCI 's Advantages

Released 10 months late

Lower TDP (19W vs 80W)

Score

Benchmark

FP32 (float)

Radeon HD 4770 +823%

0.96 TFLOPS

Radeon HD 5450 PCI

0.104 TFLOPS

Radeon HD 4770

VS

Radeon HD 5450 PCI

Graphics Card

Apr 2009

Release Date

Feb 2010

Radeon R700

Generation

Evergreen

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCI

Clock Speeds

-

800 MHz

Memory Clock

333 MHz

Memory

512MB

Memory Size

512MB

GDDR5

Memory Type

DDR2

128bit

Memory Bus

64bit

51.20GB/s

Bandwidth

5.328GB/s

Render Config

8

Compute Units

2

-

640

Shading Units

80

32

TMUs

8

16

ROPs

4

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

128 KB

L2 Cache

128 KB

-

Theoretical Performance

12.00 GPixel/s

Pixel Rate

2.600 GPixel/s

24.00 GTexel/s

Texture Rate

5.200 GTexel/s

-

960.0 GFLOPS

FP32 (float)

104.0 GFLOPS

192.0 GFLOPS

FP64 (double)

-

Board Design

80W

TDP

19W

250 W

Suggested PSU

200 W

2x DVI 1x S-Video

Outputs

1x DVI 1x HDMI 1.3a

1x 6-pin

Power Connectors

None

Graphics Processor

RV740

GPU Name

Cedar

RV740 XT (215-0727019)

GPU Variant

Cedar PRO

TeraScale

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.826 billion

Transistors

0.292 billion

137 mm²

Die Size

59 mm²

Graphics Features

10.1 (10_1)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

-

4.1

Shader Model

5.0

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