ATI Radeon HD 4580 vs ATI Radeon HD 4870 Mac Edition

VS

ATI Radeon HD 4580 ATI Radeon HD 4870 Mac Edition

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4580 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 4580 's Advantages

Released 2 years and 10 months late

Lower TDP (65W vs 150W)

ATI Radeon HD 4870 Mac Edition 's Advantages

Larger VRAM bandwidth (108.8GB/s vs 22.18GB/s)

680 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 4580

0.191 TFLOPS

Radeon HD 4870 Mac Edition +528%

1.2 TFLOPS

Radeon HD 4580

VS

Radeon HD 4870 Mac Edition

Graphics Card

Nov 2011

Release Date

Jan 2009

Radeon R700

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

693 MHz

Memory Clock

850 MHz

Memory

512MB

Memory Size

512MB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

22.18GB/s

Bandwidth

108.8GB/s

Render Config

-

SM Count

-

3

Compute Units

10

120

Shading Units

800

8

TMUs

40

4

ROPs

16

-

Tensor Cores

-

RT Cores

-

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

256 KB

Theoretical Performance

3.184 GPixel/s

Pixel Rate

12.00 GPixel/s

6.368 GTexel/s

Texture Rate

30.00 GTexel/s

-

FP16 (half)

-

191.0 GFLOPS

FP32 (float)

1200 GFLOPS

-

FP64 (double)

240.0 GFLOPS

Graphics Processor

RV635

GPU Name

RV770

RV635 PRO (215-0682008)

GPU Variant

RV770 XT Mac (215-0669080)

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

55 nm

0.378 billion

Transistors

0.956 billion

135 mm²

Die Size

256 mm²

Board Design

65W

TDP

150W

250 W

Suggested PSU

450 W

2x DVI 1x S-Video

Outputs

1x DVI 1x mini-DisplayPort 1.0

None

Power Connectors

2x 6-pin

Graphics Features

10.1 (10_1)

DirectX

10.1 (10_1)

3.3

OpenGL

3.3

N/A

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

-

4.1

Shader Model

4.1

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