ATI Radeon HD 3870 Mac Edition vs NVIDIA GeForce GTS 450 Rev. 3

VS

ATI Radeon HD 3870 Mac Edition

NVIDIA GeForce GTS 450 Rev. 3

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3870 Mac Edition and 1024MB VRAM GeForce GTS 450 Rev. 3 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 3870 Mac Edition 's Advantages

Larger VRAM bandwidth (72.06GB/s vs 22.40GB/s)

176 additional rendering cores

NVIDIA GeForce GTS 450 Rev. 3 's Advantages

Released 4 years and 1 months late

More VRAM (1024GB vs 512GB)

Score

Benchmark

FP32 (float)

Radeon HD 3870 Mac Edition +10%

0.497 TFLOPS

GeForce GTS 450 Rev. 3

0.451 TFLOPS

Radeon HD 3870 Mac Edition

VS

GeForce GTS 450 Rev. 3

Graphics Card

Jun 2008

Release Date

Jul 2012

Radeon R600

Generation

GeForce 400

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1126 MHz

Memory Clock

700 MHz

Memory

512MB

Memory Size

1024MB

GDDR4

Memory Type

DDR3

256bit

Memory Bus

128bit

72.06GB/s

Bandwidth

22.40GB/s

Render Config

4

Compute Units

-

SM Count

3

320

Shading Units

144

16

TMUs

24

16

ROPs

16

-

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

12.43 GPixel/s

Pixel Rate

4.698 GPixel/s

12.43 GTexel/s

Texture Rate

18.79 GTexel/s

-

497.3 GFLOPS

FP32 (float)

451.0 GFLOPS

99.46 GFLOPS

FP64 (double)

37.58 GFLOPS

Board Design

106W

TDP

106W

300 W

Suggested PSU

300 W

2x DVI 1x S-Video

Outputs

2x DVI 1x mini-HDMI 1.3a

1x 6-pin

Power Connectors

-

Graphics Processor

RV670

GPU Name

GF116

RV670 XT (215-0708005)

GPU Variant

GF116-200-KA-A1

TeraScale

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.666 billion

Transistors

1.17 billion

192 mm²

Die Size

238 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (11_0)

3.3 (full) 4.0 (partial)

OpenGL

4.6

N/A

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

2.1

4.1

Shader Model

5.1

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