ATI Radeon HD 3870 Mac Edition vs NVIDIA GeForce GT 705 OEM

VS

ATI Radeon HD 3870 Mac Edition

NVIDIA GeForce GT 705 OEM

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3870 Mac Edition and 1024MB VRAM GeForce GT 705 OEM 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 13.20GB/s)

272 additional rendering cores

NVIDIA GeForce GT 705 OEM 's Advantages

Released 5 years and 9 months late

More VRAM (1024GB vs 512GB)

Lower TDP (29W vs 106W)

Score

Benchmark

FP32 (float)

Radeon HD 3870 Mac Edition +195%

0.497 TFLOPS

GeForce GT 705 OEM

0.168 TFLOPS

Radeon HD 3870 Mac Edition

VS

GeForce GT 705 OEM

Graphics Card

Jun 2008

Release Date

Mar 2014

Radeon R600

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1126 MHz

Memory Clock

825 MHz

Memory

512MB

Memory Size

1024MB

GDDR4

Memory Type

DDR3

256bit

Memory Bus

64bit

72.06GB/s

Bandwidth

13.20GB/s

Render Config

4

Compute Units

-

SM Count

1

320

Shading Units

48

16

TMUs

8

16

ROPs

4

-

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

12.43 GPixel/s

Pixel Rate

1.748 GPixel/s

12.43 GTexel/s

Texture Rate

6.992 GTexel/s

-

497.3 GFLOPS

FP32 (float)

167.8 GFLOPS

99.46 GFLOPS

FP64 (double)

13.98 GFLOPS

Board Design

106W

TDP

29W

300 W

Suggested PSU

200 W

2x DVI 1x S-Video

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin

Power Connectors

-

Graphics Processor

RV670

GPU Name

GF119

RV670 XT (215-0708005)

GPU Variant

GF119-300-A1

TeraScale

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.666 billion

Transistors

0.292 billion

192 mm²

Die Size

79 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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