ATI Radeon HD 4870 Mac Edition vs ATI Radeon HD 4670 AGP

VS

ATI Radeon HD 4870 Mac Edition ATI Radeon HD 4670 AGP

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4870 Mac Edition and 1024MB VRAM Radeon HD 4670 AGP 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 25.60GB/s)

480 additional rendering cores

ATI Radeon HD 4670 AGP 's Advantages

Released 6 months late

More VRAM (1024GB vs 512GB)

Lower TDP (59W vs 150W)

Score

Benchmark

FP32 (float)

Radeon HD 4870 Mac Edition +150%

1.2 TFLOPS

Radeon HD 4670 AGP

0.48 TFLOPS

Radeon HD 4870 Mac Edition

VS

Radeon HD 4670 AGP

Graphics Card

Jan 2009

Release Date

Jul 2009

Radeon R700

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

AGP 8x

Clock Speeds

-

Base Clock

-

Boost Clock

-

850 MHz

Memory Clock

800 MHz

Memory

512MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

128bit

108.8GB/s

Bandwidth

25.60GB/s

Render Config

-

SM Count

-

10

Compute Units

4

800

Shading Units

320

40

TMUs

32

16

ROPs

8

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

128 KB

Theoretical Performance

12.00 GPixel/s

Pixel Rate

6.000 GPixel/s

30.00 GTexel/s

Texture Rate

24.00 GTexel/s

-

FP16 (half)

-

1200 GFLOPS

FP32 (float)

480.0 GFLOPS

240.0 GFLOPS

FP64 (double)

-

Graphics Processor

RV770

GPU Name

RV730

RV770 XT Mac (215-0669080)

GPU Variant

RV730 XT (215-0719047)

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

55 nm

0.956 billion

Transistors

0.514 billion

256 mm²

Die Size

146 mm²

Board Design

150W

TDP

59W

450 W

Suggested PSU

250 W

1x DVI 1x mini-DisplayPort 1.0

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

2x 6-pin

Power Connectors

-

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

-

CUDA

-

4.1

Shader Model

4.1

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