ATI Radeon HD 4870 Mac Edition vs ATI Radeon HD 4730 OEM

VS

ATI Radeon HD 4870 Mac Edition ATI Radeon HD 4730 OEM

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4870 Mac Edition and 1024MB VRAM Radeon HD 4730 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4870 Mac Edition 's Advantages

Larger VRAM bandwidth (108.8GB/s vs 25.34GB/s)

480 additional rendering cores

ATI Radeon HD 4730 OEM 's Advantages

More VRAM (1024GB vs 512GB)

Lower TDP (110W vs 150W)

Score

Benchmark

FP32 (float)

Radeon HD 4870 Mac Edition +180%

1.2 TFLOPS

Radeon HD 4730 OEM

0.428 TFLOPS

Radeon HD 4870 Mac Edition

VS

Radeon HD 4730 OEM

Graphics Card

Jan 2009

Release Date

Dec 2008

Radeon R700

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

850 MHz

Memory Clock

396 MHz

Memory

512MB

Memory Size

1024MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

256bit

108.8GB/s

Bandwidth

25.34GB/s

Render Config

-

SM Count

-

10

Compute Units

4

800

Shading Units

320

40

TMUs

16

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

256 KB

Theoretical Performance

12.00 GPixel/s

Pixel Rate

10.70 GPixel/s

30.00 GTexel/s

Texture Rate

10.70 GTexel/s

-

FP16 (half)

-

1200 GFLOPS

FP32 (float)

428.2 GFLOPS

240.0 GFLOPS

FP64 (double)

85.63 GFLOPS

Graphics Processor

RV770

GPU Name

RV670

RV770 XT Mac (215-0669080)

GPU Variant

-

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

55 nm

0.956 billion

Transistors

0.666 billion

256 mm²

Die Size

192 mm²

Board Design

150W

TDP

110W

450 W

Suggested PSU

300 W

1x DVI 1x mini-DisplayPort 1.0

Outputs

2x DVI 1x S-Video

2x 6-pin

Power Connectors

-

Graphics Features

10.1 (10_1)

DirectX

10.1 (10_1)

3.3

OpenGL

3.3 (full) 4.0 (partial)

1.1

OpenCL

N/A

Vulkan

N/A

-

CUDA

-

4.1

Shader Model

4.1

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