ATI Radeon HD 3870 Mac Edition: GPU Specs & Benchmarks

The Radeon HD 3870 Mac Edition 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.

Recommended Gaming Resolutions 640x480 1280x720 1366x768 1600x900 1920x1080 2560x1440 3840x2160

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

Jun 12th, 2008

Family

Radeon R600
(HD 3800)

Production

End-of-life

Predecessor

Radeon R500 PCIe

Bus Interface

PCIe 2.0 x16

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

Single-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 6-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