ATI Radeon HD 3870 AGP: GPU Specs & Benchmarks

The Radeon HD 3870 AGP is a graphics card by ATI, built on the 55 nm process and based on the RV670 graphics processor (GPU). The video card specifications and performance tests (benchmarks) are listed below.

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Graphics Processor (GPU)

GPU Name

RV670

Model number

RV670 XT
(215-0708005)

Architecture

TeraScale

Foundry

TSMC

Process Size

55 nm

Transistors

666 million

Die Size

192 mm²

Graphics Card

Release Date

Never Released

Family

Radeon R600
(HD 3800)

Production

End-of-life

Predecessor

Radeon R500 PCIe

Bus Interface

AGP 8x

Memory

Memory Size

512 MB

Memory Type

GDDR4

Memory Bus

256 bit

Bandwidth

72.06 GB/s

Performance

Pixel fillrate

12.43 GPixel/s

Texture fillrate

12.43 GTexel/s

FP32 (float) performance

497.3 GFLOPS

FP64 (double) performance

99.46 GFLOPS (1:5)

Clock Speeds

Memory Clock

1126 MHz
2.3 Gbps effective

GPU Clock

777 MHz

Render Config

Shading Units

320

TMUs

16

ROPs

16

Compute Units

4

L2 Cache

256 KB

Board Design

Slot Width

Dual-slot

Length

241 mm
9.5 inches

Thermal design power (TDP)

106 W

Suggested PSU

300 W

Display Connectors

2x DVI
1x S-Video

Power Connectors

1x 8-pin

API support

DirectX

10.1 (10_1)

OpenGL

3.3 (full)
4.0 (partial)

OpenCL

N/A

Vulkan

N/A

Shader Model

4.1