ATI Mobility Radeon HD 3870 vs NVIDIA GeForce GTX 675MX Mac Edition

VS

ATI Mobility Radeon HD 3870

NVIDIA GeForce GTX 675MX Mac Edition

We compared two Mobile platform GPUs: 512MB VRAM Mobility Radeon HD 3870 and 1024MB VRAM GeForce GTX 675MX Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Mobility Radeon HD 3870 's Advantages

Lower TDP (55W vs 100W)

NVIDIA GeForce GTX 675MX Mac Edition 's Advantages

Released 4 years and 10 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (160.0GB/s vs 54.40GB/s)

1024 additional rendering cores

Score

Benchmark

FP32 (float)

Mobility Radeon HD 3870

0.422 TFLOPS

GeForce GTX 675MX Mac Edition +358%

1.933 TFLOPS

Mobility Radeon HD 3870

VS

GeForce GTX 675MX Mac Edition

Graphics Card

Jun 2008

Release Date

Apr 2013

M8x

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

850 MHz

Memory Clock

1250 MHz

Memory

512MB

Memory Size

1024MB

GDDR3

Memory Type

GDDR5

256bit

Memory Bus

256bit

54.40GB/s

Bandwidth

160.0GB/s

Render Config

4

Compute Units

-

320

Shading Units

1344

16

TMUs

112

16

ROPs

32

-

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

10.56 GPixel/s

Pixel Rate

20.13 GPixel/s

10.56 GTexel/s

Texture Rate

80.53 GTexel/s

-

422.4 GFLOPS

FP32 (float)

1.933 TFLOPS

84.48 GFLOPS

FP64 (double)

80.53 GFLOPS

Board Design

55W

TDP

100W

-

No outputs

Outputs

No outputs

-

Graphics Processor

M88

GPU Name

GK104

-

GPU Variant

N13E-GSR-A2

TeraScale

Architecture

Kepler

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.666 billion

Transistors

3.54 billion

192 mm²

Die Size

294 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (11_0)

3.3

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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