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 RTX 2080

CORE STATE TU104

VRAM 8 GB

CLOCK SPEED 1710 MHz

TDP 215 W

BUS WIDTH 256 bit

ARCHITECTURE Turing

nm

PROCESS 12 nm

LAUNCH DATE 2018

PERFORMANCE BENCHMARKS

geekbench_metal

4,284

N/A

geekbench_opencl

11,347

105,271

geekbench_vulkan

11,368

101,532

3dmark_3dmark_steel_nomad_dx12

N/A

1,752

passmark_directx_10

N/A

136

passmark_directx_11

N/A

158

passmark_directx_12

N/A

72

passmark_directx_9

N/A

223

passmark_g2d

N/A

907

passmark_g3d

N/A

18,720

passmark_gpu_compute

N/A

7,872

DETAILED SPECIFICATIONS

SPECIFICATION

GTX 660

RTX 2080

Core Specs

Shading Units

960

2,944 +206.7%

Shaders

960

2,944 +206.7%

TMUs

80

184 +130.0%

ROPs

24

64 +166.7%

SM Count

—

46

Clocks

Base Clock

980 MHz

1515 MHz

Boost Clock

1032 MHz

1710 MHz

Memory Clock

1502 MHz 6 Gbps effective

1750 MHz 14 Gbps effective

Memory

Memory Size

2 GB

8 GB

VRAM (MB)

2,048

8,192 +300.0%

Memory Type

GDDR5

GDDR6

Memory Bus

192 bit

256 bit

Bandwidth

144.2 GB/s

448.0 GB/s

Cache

L1 Cache

16 KB (per SMX)

64 KB (per SM)

L2 Cache

384 KB

4 MB

Performance

Pixel Rate

20.64 GPixel/s

109.4 GPixel/s

Texture Rate

82.56 GTexel/s

314.6 GTexel/s

FP32 (TFLOPS)

1.981 TFLOPS

10.07 TFLOPS

FP64 (TFLOPS)

82.56 GFLOPS (1:24)

314.6 GFLOPS (1:32)

FP16 (TFLOPS)

—

20.14 TFLOPS (2:1)

AI/RT

RT Cores

—

46

Tensor Cores

—

368

Power

TDP

140 W

215 W

TDP (W)

140

215 +53.6%

Suggested PSU

300 W

550 W

Power Connectors

1x 6-pin

1x 6-pin + 1x 8-pin

Architecture

Architecture

Kepler

Turing

GPU Name

GK106

TU104

Generation

GeForce 600

GeForce 20

Process Size

28 nm

12 nm

Transistors

2,540 million

13,600 million

Die Size

221 mm²

545 mm²

Foundry

TSMC

TSMC

Density

11.5M / mm²

25.0M / mm²

API Support

DirectX

12 (11_0)

12 Ultimate (12_2)

OpenGL

4.6

4.6

Vulkan

1.2.175

1.4

OpenCL

3.0

3.0

CUDA

3.0

7.5

Shader Model

6.5 (5.1)

6.8

Physical

Slot Width

Dual-slot

Dual-slot

Length

241 mm 9.5 inches

267 mm 10.5 inches

Height

—

116 mm 4.6 inches

Outputs

2x DVI1x HDMI 1.4a1x DisplayPort 1.2

1x HDMI 2.03x DisplayPort 1.4a1x USB Type-C

Bus Interface

PCIe 3.0 x16

PCIe 3.0 x16

Other

Launch Price

229 USD

699 USD

Production

End-of-life

End-of-life

Predecessor

GeForce 500

GeForce 10

Successor

GeForce 700

GeForce 30

View GeForce GTX 660 Details View GeForce RTX 2080 Details