ATI Radeon HD 4770 vs AMD Radeon HD 8770 OEM

VS

ATI Radeon HD 4770

AMD Radeon HD 8770 OEM

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4770 and 1024MB VRAM Radeon HD 8770 OEM 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 85W)

AMD Radeon HD 8770 OEM 's Advantages

Released 4 years and 5 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (96.00GB/s vs 51.20GB/s)

256 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 4770

0.96 TFLOPS

Radeon HD 8770 OEM +96%

1.882 TFLOPS

Radeon HD 4770

VS

Radeon HD 8770 OEM

Graphics Card

Apr 2009

Release Date

Sep 2013

Radeon R700

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

800 MHz

Memory Clock

1500 MHz

Memory

512MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

51.20GB/s

Bandwidth

96.00GB/s

Render Config

8

Compute Units

14

-

640

Shading Units

896

32

TMUs

56

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

12.00 GPixel/s

Pixel Rate

16.80 GPixel/s

24.00 GTexel/s

Texture Rate

58.80 GTexel/s

-

960.0 GFLOPS

FP32 (float)

1.882 TFLOPS

192.0 GFLOPS

FP64 (double)

117.6 GFLOPS

Board Design

80W

TDP

85W

250 W

Suggested PSU

250 W

2x DVI 1x S-Video

Outputs

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

1x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

RV740

GPU Name

Bonaire

RV740 XT (215-0727019)

GPU Variant

Bonaire XT (215-0839039)

TeraScale

Architecture

GCN 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.826 billion

Transistors

2.08 billion

137 mm²

Die Size

160 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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