AMD Radeon E8870 vs NVIDIA GeForce GTX 660M Mac Edition

VS

AMD Radeon E8870

NVIDIA GeForce GTX 660M Mac Edition

We compared two Mobile platform GPUs: 4GB VRAM Radeon E8870 and 512MB VRAM GeForce GTX 660M Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon E8870 's Advantages

Released 2 years and 5 months late

More VRAM (4GB vs 512GB)

Larger VRAM bandwidth (96.00GB/s vs 80.00GB/s)

384 additional rendering cores

NVIDIA GeForce GTX 660M Mac Edition 's Advantages

Lower TDP (50W vs 75W)

Score

Benchmark

FP32 (float)

Radeon E8870 +110%

1.536 TFLOPS

GeForce GTX 660M Mac Edition

0.73 TFLOPS

Radeon E8870

VS

GeForce GTX 660M Mac Edition

Graphics Card

Sep 2015

Release Date

Apr 2013

Embedded

Generation

GeForce 600M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-B (3.0)

Clock Speeds

-

1500 MHz

Memory Clock

1250 MHz

Memory

4GB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

96.00GB/s

Bandwidth

80.00GB/s

Render Config

12

Compute Units

-

768

Shading Units

384

48

TMUs

32

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

16.00 GPixel/s

Pixel Rate

7.600 GPixel/s

48.00 GTexel/s

Texture Rate

30.40 GTexel/s

-

1.536 TFLOPS

FP32 (float)

729.6 GFLOPS

96.00 GFLOPS

FP64 (double)

30.40 GFLOPS

Board Design

75W

TDP

50W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Saturn

GPU Name

GK107

Saturn PRO

GPU Variant

-

GCN 2.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.08 billion

Transistors

1.27 billion

160 mm²

Die Size

118 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.0

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.0

6.3

Shader Model

5.1

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