GPU Comparison

NVIDIA

GEFORCE

NVIDIA GeForce GTX 660

CORE STATE GK106

VRAM 2 GB

CLOCK SPEED 1032 MHz

TDP 140 W

BUS WIDTH 192 bit

ARCHITECTURE Kepler

nm

PROCESS 28 nm

LAUNCH DATE 2012

VS

NVIDIA

GEFORCE

GeForce GTX 980M

CORE STATE GM204

VRAM 8 GB

CLOCK SPEED 1127 MHz

TDP —

BUS WIDTH 256 bit

ARCHITECTURE Maxwell 2.0

nm

PROCESS 28 nm

LAUNCH DATE 2014

PERFORMANCE BENCHMARKS

geekbench_metal

4,284

N/A

geekbench_opencl

11,347

23,832

geekbench_vulkan

11,368

13,964

3dmark_3dmark_steel_nomad_dx12

N/A

649

passmark_directx_10

N/A

35

passmark_directx_11

N/A

57

passmark_directx_12

N/A

31

passmark_directx_9

N/A

125

passmark_g2d

N/A

490

passmark_g3d

N/A

7,338

passmark_gpu_compute

N/A

2,816

DETAILED SPECIFICATIONS

SPECIFICATION

GTX 660

GTX 980M

Core Specs

Shading Units

960

1,536 +60.0%

Shaders

960

1,536 +60.0%

TMUs

80

96 +20.0%

ROPs

24

64 +166.7%

Clocks

Base Clock

980 MHz

1038 MHz

Boost Clock

1032 MHz

1127 MHz

Memory Clock

1502 MHz 6 Gbps effective

1253 MHz 5 Gbps effective

Memory

Memory Size

2 GB

8 GB

VRAM (MB)

2,048

8,192 +300.0%

Memory Type

GDDR5

GDDR5

Memory Bus

192 bit

256 bit

Bandwidth

144.2 GB/s

160.4 GB/s

Cache

L1 Cache

16 KB (per SMX)

48 KB (per SMM)

L2 Cache

384 KB

2 MB

Performance

Pixel Rate

20.64 GPixel/s

72.13 GPixel/s

Texture Rate

82.56 GTexel/s

108.2 GTexel/s

FP32 (TFLOPS)

1.981 TFLOPS

3.462 TFLOPS

FP64 (TFLOPS)

82.56 GFLOPS (1:24)

108.2 GFLOPS (1:32)

Power

TDP

140 W

—

TDP (W)

140

—

Suggested PSU

300 W

—

Power Connectors

1x 6-pin

None

Architecture

Architecture

Kepler

Maxwell 2.0

GPU Name

GK106

GM204

Generation

GeForce 600

GeForce 900M

Process Size

28 nm

28 nm

Transistors

2,540 million

5,200 million

Die Size

221 mm²

398 mm²

Foundry

TSMC

TSMC

Density

11.5M / mm²

13.1M / mm²

API Support

DirectX

12 (11_0)

12 (12_1)

OpenGL

4.6

4.6

Vulkan

1.2.175

1.4

OpenCL

3.0

3.0

CUDA

3.0

5.2

Shader Model

6.5 (5.1)

6.8

Physical

Slot Width

Dual-slot

MXM Module

Length

241 mm 9.5 inches

—

Outputs

2x DVI1x HDMI 1.4a1x DisplayPort 1.2

Portable Device Dependent

Bus Interface

PCIe 3.0 x16

MXM-B (3.0)

Other

Launch Price

229 USD

—

Production

End-of-life

End-of-life

Predecessor

GeForce 500

GeForce 800M

Successor

GeForce 700

GeForce 10 Mobile

View GeForce GTX 660 Details View GeForce GTX 980M Details