ATI Radeon HD 4770 vs ATI Radeon HD 5770 Mac Edition

VS

ATI Radeon HD 4770

ATI Radeon HD 5770 Mac Edition

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4770 and 1024MB VRAM Radeon HD 5770 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4770 's Advantages

Lower TDP (80W vs 108W)

ATI Radeon HD 5770 Mac Edition 's Advantages

Released 1 years and 3 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (76.48GB/s vs 51.20GB/s)

160 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 4770

0.96 TFLOPS

Radeon HD 5770 Mac Edition +41%

1.36 TFLOPS

Radeon HD 4770

VS

Radeon HD 5770 Mac Edition

Graphics Card

Apr 2009

Release Date

Jul 2010

Radeon R700

Generation

Evergreen

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

800 MHz

Memory Clock

1195 MHz

Memory

512MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

51.20GB/s

Bandwidth

76.48GB/s

Render Config

8

Compute Units

10

-

640

Shading Units

800

32

TMUs

40

16

ROPs

16

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

12.00 GPixel/s

Pixel Rate

13.60 GPixel/s

24.00 GTexel/s

Texture Rate

34.00 GTexel/s

-

960.0 GFLOPS

FP32 (float)

1360 GFLOPS

192.0 GFLOPS

FP64 (double)

-

Board Design

80W

TDP

108W

250 W

Suggested PSU

300 W

2x DVI 1x S-Video

Outputs

1x DVI 1x DisplayPort 1.1

1x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

RV740

GPU Name

Juniper

RV740 XT (215-0727019)

GPU Variant

Juniper XT (215-0754013)

TeraScale

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.826 billion

Transistors

1.04 billion

137 mm²

Die Size

166 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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