ATI Radeon HD 4770: GPU Specs & Benchmarks

The Radeon HD 4770 is a graphics card by ATI, built on the 40 nm process and based on the RV740 graphics processor (GPU). The video card specifications and performance tests (benchmarks) are listed below.

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Graphics Processor (GPU)

GPU Name

RV740

Model number

RV740 XT
(215-0727019)

Architecture

TeraScale

Foundry

TSMC

Process Size

40 nm

Transistors

826 million

Die Size

137 mm²

Graphics Card

Release Date

Apr 28th, 2009

Family

Radeon R700
(HD 4700)

Production

End-of-life

Launch Price

109 USD

Predecessor

Radeon R600

Bus Interface

PCIe 2.0 x16

Memory

Memory Size

512 MB

Memory Type

GDDR5

Memory Bus

128 bit

Bandwidth

51.20 GB/s

Performance

Pixel fillrate

12.00 GPixel/s

Texture fillrate

24.00 GTexel/s

FP32 (float) performance

960.0 GFLOPS

FP64 (double) performance

192.0 GFLOPS (1:5)

Clock Speeds

Memory Clock

800 MHz
3.2 Gbps effective

GPU Clock

750 MHz

Render Config

Shading Units

640

TMUs

32

ROPs

16

Compute Units

8

L1 Cache

16 KB (per CU)

L2 Cache

128 KB

Board Design

Slot Width

Dual-slot

Length

203 mm
8 inches

Thermal design power (TDP)

80 W

Suggested PSU

250 W

Display Connectors

2x DVI
1x S-Video

Power Connectors

1x 6-pin

Board Number

B743

API support

DirectX

10.1 (10_1)

OpenGL

3.3

OpenCL

1.1

Vulkan

N/A

Shader Model

4.1