NVIDIA GeForce GTX 660M vs AMD Radeon HD 8670M

VS

NVIDIA GeForce GTX 660M AMD Radeon HD 8670M

We compared two Mobile platform GPUs: 1024MB VRAM GeForce GTX 660M and 1024MB VRAM Radeon HD 8670M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660M 's Advantages

Larger VRAM bandwidth (64.00GB/s vs 14.40GB/s)

64 additional rendering cores

AMD Radeon HD 8670M 's Advantages

Released 1 years late

Boost Clock has increased by 3% (975MHz vs 950MHz)

Score

Benchmark

FP32 (float)

GeForce GTX 660M +16%

0.73 TFLOPS

Radeon HD 8670M

0.624 TFLOPS

GeForce GTX 660M

VS

Radeon HD 8670M

Graphics Card

Mar 2012

Release Date

Mar 2013

GeForce 600M

Generation

Solar System

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x8

Clock Speeds

835 MHz

Base Clock

925 MHz

950 MHz

Boost Clock

975 MHz

1000 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

64bit

64.00GB/s

Bandwidth

14.40GB/s

Render Config

-

SM Count

-

Compute Units

5

384

Shading Units

320

32

TMUs

20

16

ROPs

8

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

128 KB

Theoretical Performance

7.600 GPixel/s

Pixel Rate

7.800 GPixel/s

30.40 GTexel/s

Texture Rate

19.50 GTexel/s

-

FP16 (half)

-

729.6 GFLOPS

FP32 (float)

624.0 GFLOPS

30.40 GFLOPS

FP64 (double)

39.00 GFLOPS

Graphics Processor

GK107

GPU Name

Sun

N13E-GE-A2

GPU Variant

Sun S3 XT (216-0841009)

Kepler

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.27 billion

Transistors

0.69 billion

118 mm²

Die Size

56 mm²

Board Design

50W

TDP

Unknown

-

Suggested PSU

-

No outputs

Outputs

Portable Device Dependent

-

Power Connectors

-

Graphics Features

12 (11_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

2.1 (1.2)

1.1

Vulkan

1.2.170

3.0

CUDA

-

5.1

Shader Model

6.5 (5.1)

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