ATI Radeon HD 3870 Mac Edition vs NVIDIA GeForce GTX 550 Ti

VS

ATI Radeon HD 3870 Mac Edition

NVIDIA GeForce GTX 550 Ti

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3870 Mac Edition and 1024MB VRAM GeForce GTX 550 Ti 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

128 additional rendering cores

Lower TDP (106W vs 116W)

NVIDIA GeForce GTX 550 Ti 's Advantages

Released 2 years and 9 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (98.50GB/s vs 72.06GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 3870 Mac Edition

0.497 TFLOPS

GeForce GTX 550 Ti +39%

0.691 TFLOPS

Radeon HD 3870 Mac Edition

VS

GeForce GTX 550 Ti

Graphics Card

Jun 2008

Release Date

Mar 2011

Radeon R600

Generation

GeForce 500

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1126 MHz

Memory Clock

1026 MHz

Memory

512MB

Memory Size

1024MB

GDDR4

Memory Type

GDDR5

256bit

Memory Bus

192bit

72.06GB/s

Bandwidth

98.50GB/s

Render Config

4

Compute Units

-

SM Count

4

320

Shading Units

192

16

TMUs

32

16

ROPs

24

-

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

384 KB

-

Theoretical Performance

12.43 GPixel/s

Pixel Rate

7.200 GPixel/s

12.43 GTexel/s

Texture Rate

28.80 GTexel/s

-

497.3 GFLOPS

FP32 (float)

691.2 GFLOPS

99.46 GFLOPS

FP64 (double)

57.60 GFLOPS

Board Design

106W

TDP

116W

300 W

Suggested PSU

300 W

2x DVI 1x S-Video

Outputs

2x DVI 1x mini-HDMI 1.3a

1x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

RV670

GPU Name

GF116

RV670 XT (215-0708005)

GPU Variant

GF116-400-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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