ATI Radeon HD 3870 Mac Edition vs NVIDIA GeForce GTX 650 Ti OEM

VS

ATI Radeon HD 3870 Mac Edition

NVIDIA GeForce GTX 650 Ti OEM

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3870 Mac Edition and 2GB VRAM GeForce GTX 650 Ti 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

Lower TDP (106W vs 110W)

NVIDIA GeForce GTX 650 Ti OEM 's Advantages

Released 4 years and 9 months late

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (86.40GB/s vs 72.06GB/s)

448 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 3870 Mac Edition

0.497 TFLOPS

GeForce GTX 650 Ti OEM +186%

1.425 TFLOPS

Radeon HD 3870 Mac Edition

VS

GeForce GTX 650 Ti OEM

Graphics Card

Jun 2008

Release Date

Mar 2013

Radeon R600

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1126 MHz

Memory Clock

1350 MHz

Memory

512MB

Memory Size

2GB

GDDR4

Memory Type

GDDR5

256bit

Memory Bus

128bit

72.06GB/s

Bandwidth

86.40GB/s

Render Config

4

Compute Units

-

320

Shading Units

768

16

TMUs

64

16

ROPs

16

-

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

12.43 GPixel/s

Pixel Rate

14.85 GPixel/s

12.43 GTexel/s

Texture Rate

59.39 GTexel/s

-

497.3 GFLOPS

FP32 (float)

1425 GFLOPS

99.46 GFLOPS

FP64 (double)

59.39 GFLOPS

Board Design

106W

TDP

110W

300 W

Suggested PSU

300 W

2x DVI 1x S-Video

Outputs

2x DVI 1x mini-HDMI 1.4a

1x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

RV670

GPU Name

GK106

RV670 XT (215-0708005)

GPU Variant

-

TeraScale

Architecture

Kepler

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.666 billion

Transistors

2.54 billion

192 mm²

Die Size

221 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (11_0)

3.3 (full) 4.0 (partial)

OpenGL

4.6

N/A

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.0

4.1

Shader Model

5.1

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