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 Ti

CORE STATE TU102

VRAM 11 GB

CLOCK SPEED 1545 MHz

TDP 250 W

BUS WIDTH 352 bit

ARCHITECTURE Turing

nm

PROCESS 12 nm

LAUNCH DATE 2018

PERFORMANCE BENCHMARKS

geekbench_metal

4,284

N/A

geekbench_opencl

11,347

134,929

geekbench_vulkan

11,368

132,930

3dmark_3dmark_steel_nomad_dx12

N/A

3,537

passmark_directx_10

N/A

153

passmark_directx_11

N/A

190

passmark_directx_12

N/A

84

passmark_directx_9

N/A

235

passmark_g2d

N/A

927

passmark_g3d

N/A

21,548

passmark_gpu_compute

N/A

10,056

DETAILED SPECIFICATIONS

SPECIFICATION

GTX 660

RTX 2080 Ti

Core Specs

Shading Units

960

4,352 +353.3%

Shaders

960

4,352 +353.3%

TMUs

80

272 +240.0%

ROPs

24

88 +266.7%

SM Count

—

68

Clocks

Base Clock

980 MHz

1350 MHz

Boost Clock

1032 MHz

1545 MHz

Memory Clock

1502 MHz 6 Gbps effective

1750 MHz 14 Gbps effective

Memory

Memory Size

2 GB

11 GB

VRAM (MB)

2,048

11,264 +450.0%

Memory Type

GDDR5

GDDR6

Memory Bus

192 bit

352 bit

Bandwidth

144.2 GB/s

616.0 GB/s

Cache

L1 Cache

16 KB (per SMX)

64 KB (per SM)

L2 Cache

384 KB

5.5 MB

Performance

Pixel Rate

20.64 GPixel/s

136.0 GPixel/s

Texture Rate

82.56 GTexel/s

420.2 GTexel/s

FP32 (TFLOPS)

1.981 TFLOPS

13.45 TFLOPS

FP64 (TFLOPS)

82.56 GFLOPS (1:24)

420.2 GFLOPS (1:32)

FP16 (TFLOPS)

—

26.90 TFLOPS (2:1)

AI/RT

RT Cores

—

68

Tensor Cores

—

544

Power

TDP

140 W

250 W

TDP (W)

140

250 +78.6%

Suggested PSU

300 W

600 W

Power Connectors

1x 6-pin

2x 8-pin

Architecture

Architecture

Kepler

Turing

GPU Name

GK106

TU102

Generation

GeForce 600

GeForce 20

Process Size

28 nm

12 nm

Transistors

2,540 million

18,600 million

Die Size

221 mm²

754 mm²

Foundry

TSMC

TSMC

Density

11.5M / mm²

24.7M / 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

999 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 Ti Details