ATI Radeon HD 4870 vs ATI Radeon HD 4870 Mac Edition

VS

ATI Radeon HD 4870

ATI Radeon HD 4870 Mac Edition

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4870 and 512MB VRAM Radeon HD 4870 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4870 's Advantages

Larger VRAM bandwidth (115.2GB/s vs 108.8GB/s)

ATI Radeon HD 4870 Mac Edition 's Advantages

Released 7 months late

Score

Benchmark

FP32 (float)

Radeon HD 4870

1.2 TFLOPS

Radeon HD 4870 Mac Edition

1.2 TFLOPS

Radeon HD 4870

VS

Radeon HD 4870 Mac Edition

Graphics Card

Jun 2008

Release Date

Jan 2009

Radeon R700

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

900 MHz

Memory Clock

850 MHz

Memory

512MB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

115.2GB/s

Bandwidth

108.8GB/s

Render Config

10

Compute Units

10

-

800

Shading Units

800

40

TMUs

40

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

12.00 GPixel/s

Pixel Rate

12.00 GPixel/s

30.00 GTexel/s

Texture Rate

30.00 GTexel/s

-

1200 GFLOPS

FP32 (float)

1200 GFLOPS

240.0 GFLOPS

FP64 (double)

240.0 GFLOPS

Board Design

150W

TDP

150W

450 W

Suggested PSU

450 W

2x DVI 1x S-Video

Outputs

1x DVI 1x mini-DisplayPort 1.0

2x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

RV770

GPU Name

RV770

RV770 XT (215-0669049)

GPU Variant

RV770 XT Mac (215-0669080)

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

55 nm

0.956 billion

Transistors

0.956 billion

256 mm²

Die Size

256 mm²

Graphics Features

10.1 (10_1)

DirectX

10.1 (10_1)

3.3

OpenGL

3.3

1.1

OpenCL

1.1

N/A

Vulkan

N/A

-

4.1

Shader Model

4.1

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