ATI Radeon HD 4870 Mac Edition vs NVIDIA GeForce GT 440 Mac Edition

VS

ATI Radeon HD 4870 Mac Edition

NVIDIA GeForce GT 440 Mac Edition

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4870 Mac Edition and 1024MB VRAM GeForce GT 440 Mac Edition 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 21.34GB/s)

704 additional rendering cores

NVIDIA GeForce GT 440 Mac Edition 's Advantages

Released 2 years and 1 months late

More VRAM (1024GB vs 512GB)

Lower TDP (65W vs 150W)

Score

Benchmark

FP32 (float)

Radeon HD 4870 Mac Edition +285%

1.2 TFLOPS

GeForce GT 440 Mac Edition

0.311 TFLOPS

Radeon HD 4870 Mac Edition

VS

GeForce GT 440 Mac Edition

Graphics Card

Jan 2009

Release Date

Feb 2011

Radeon R700

Generation

GeForce 400

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

850 MHz

Memory Clock

667 MHz

Memory

512MB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

108.8GB/s

Bandwidth

21.34GB/s

Render Config

10

Compute Units

-

SM Count

2

800

Shading Units

96

40

TMUs

16

ROPs

4

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

12.00 GPixel/s

Pixel Rate

3.240 GPixel/s

30.00 GTexel/s

Texture Rate

12.96 GTexel/s

-

1200 GFLOPS

FP32 (float)

311.0 GFLOPS

240.0 GFLOPS

FP64 (double)

25.92 GFLOPS

Board Design

150W

TDP

65W

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

None

Graphics Processor

RV770

GPU Name

GF108

RV770 XT Mac (215-0669080)

GPU Variant

GF108-400-A1

TeraScale

Architecture

Fermi

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.956 billion

Transistors

0.585 billion

256 mm²

Die Size

116 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (11_0)

3.3

OpenGL

4.6

1.1

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

2.1

4.1

Shader Model

5.1

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