ATI Radeon HD 4860: GPU Specs & Benchmarks

The Radeon HD 4860 is a graphics card by ATI, built on the 55 nm process and based on the RV790 graphics processor (GPU). The video card specifications and performance tests (benchmarks) are listed below.

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Graphics Processor (GPU)

GPU Name

RV790

Model number

RV790 GT

Architecture

TeraScale

Foundry

TSMC

Process Size

55 nm

Transistors

959 million

Die Size

282 mm²

Graphics Card

Release Date

Sep 9th, 2009

Family

Radeon R700
(HD 4800)

Production

End-of-life

Predecessor

Radeon R600

Bus Interface

PCIe 2.0 x16

Memory

Memory Size

512 MB

Memory Type

GDDR5

Memory Bus

256 bit

Bandwidth

96.00 GB/s

Performance

Pixel fillrate

11.20 GPixel/s

Texture fillrate

22.40 GTexel/s

FP32 (float) performance

896.0 GFLOPS

FP64 (double) performance

179.2 GFLOPS (1:5)

Clock Speeds

Memory Clock

750 MHz
3 Gbps effective

GPU Clock

700 MHz

Render Config

Shading Units

640

TMUs

32

ROPs

16

Compute Units

8

L1 Cache

16 KB (per CU)

L2 Cache

256 KB

Board Design

Slot Width

Dual-slot

Thermal design power (TDP)

130 W

Suggested PSU

300 W

Display Connectors

2x DVI
1x S-Video

Power Connectors

2x 6-pin

Board Number

B932

API support

DirectX

10.1 (10_1)

OpenGL

3.3

OpenCL

1.1

Vulkan

N/A

Shader Model

4.1