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ATI Radeon HD 4870 Mac Edition

ATI Radeon HD 4870 Mac Edition Image ATI RV770 Image
The Radeon HD 4870 Mac Edition was a graphics card by ATI, launched in January 2009. Built on the 55 nm process, and based on the RV770 graphics processor, in its RV770 PRO variant, the card supports DirectX 10.1. The RV770 graphics processor is an average sized chip with a die area of 256 mm² and 956 million transistors. It features 800 shading units, 40 texture mapping units and 16 ROPs. ATI has placed 512 MB GDDR5 memory on the card, which are connected using a 256-bit memory interface. The GPU is operating at a frequency of 750 MHz, memory is running at 850 MHz.
We recommend the ATI Radeon HD 4870 Mac Edition for gaming with highest details at resolutions up to, and including, 1280x720.
Being a dual-slot card, the ATI Radeon HD 4870 Mac Edition draws power from 2x 6-pin power connectors, with power draw rated at 150 W maximum. Display outputs include: 2x DVI, 1x S-Video. Radeon HD 4870 Mac Edition is connected to the rest of the system using a PCIe 2.0 x16 interface. The card measures 250 mm in length, and features a dual-slot cooling solution.

Graphics Processor

GPU Name: RV770
GPU Variant: RV770 PRO
Process Size: 55 nm
Transistors: 956 million
Die Size: 256 mm²

Graphics Card

Released: Jan 6th, 2009
Production Status: End-of-life
Bus Interface: PCIe 2.0 x16

Clock Speeds

GPU Clock: 750 MHz
Memory Clock: 850 MHz
3400 MHz effective

Memory

Memory Size: 512 MB
Memory Type: GDDR5
Memory Bus: 256 bit
Bandwidth: 109 GB/s

Render Config

Shading Units: 800
TMUs: 40
ROPs: 16
Compute Units: 10
Pixel Rate: 12.0 GPixel/s
Texture Rate: 30.0 GTexel/s
Floating-point performance: 1,200 GFLOPS

Board Design

Slot Width: Dual-slot
Length: 9.84 inches
250 mm
TDP: 150 W
Outputs: 2x DVI
1x S-Video
Power Connectors: 2x 6-pin
Board Number: B771

Graphics Features

DirectX: 10.1
OpenGL: 3.3
OpenCL: 1.0
Shader Model: 4.1

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Reviews

Our review database contains 135 reviews of the Radeon HD 4870 Mac Edition.