GPU Comparison

NVIDIA

GEFORCE

NVIDIA GeForce GTX 660 Ti

CORE STATE GK104

VRAM 2 GB

CLOCK SPEED 980 MHz

TDP 150 W

BUS WIDTH 192 bit

ARCHITECTURE Kepler

nm

PROCESS 28 nm

LAUNCH DATE 2012

VS

NVIDIA

GEFORCE

GeForce RTX 3080 Mobile

CORE STATE GA104

VRAM 8 GB

CLOCK SPEED 1545 MHz

TDP 115 W

BUS WIDTH 256 bit

ARCHITECTURE Ampere

nm

PROCESS 8 nm

LAUNCH DATE 2021

PERFORMANCE BENCHMARKS

geekbench_opencl

15,095

104,831

geekbench_vulkan

15,511

104,066

3dmark_3dmark_steel_nomad_dx12

N/A

2,644

passmark_directx_10

N/A

120

passmark_directx_11

N/A

146

passmark_directx_12

N/A

72

passmark_directx_9

N/A

170

passmark_g2d

N/A

637

passmark_g3d

N/A

16,321

passmark_gpu_compute

N/A

7,276

DETAILED SPECIFICATIONS

SPECIFICATION

GTX 660 Ti

RTX 3080 Mobile

Core Specs

Shading Units

1,344

6,144 +357.1%

Shaders

1,344

6,144 +357.1%

TMUs

112

192 +71.4%

ROPs

24

96 +300.0%

SM Count

—

48

Clocks

Base Clock

915 MHz

1110 MHz

Boost Clock

980 MHz

1545 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)

128 KB (per SM)

L2 Cache

384 KB

4 MB

Performance

Pixel Rate

27.44 GPixel/s

148.3 GPixel/s

Texture Rate

109.8 GTexel/s

296.6 GTexel/s

FP32 (TFLOPS)

2.634 TFLOPS

18.98 TFLOPS

FP64 (TFLOPS)

109.8 GFLOPS (1:24)

296.6 GFLOPS (1:64)

FP16 (TFLOPS)

—

18.98 TFLOPS (1:1)

AI/RT

RT Cores

—

48

Tensor Cores

—

192

Power

TDP

150 W

115 W

TDP (W)

150

115 -23.3%

Suggested PSU

450 W

—

Power Connectors

2x 6-pin

None

Architecture

Architecture

Kepler

Ampere

GPU Name

GK104

GA104

Generation

GeForce 600

GeForce 30 Mobile

Process Size

28 nm

8 nm

Transistors

3,540 million

17,400 million

Die Size

294 mm²

392 mm²

Foundry

TSMC

Samsung

Density

12.0M / mm²

44.4M / 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

8.6

Shader Model

6.5 (5.1)

6.8

Physical

Slot Width

Dual-slot

—

Length

241 mm 9.5 inches

—

Outputs

2x DVI1x HDMI 1.4a1x DisplayPort 1.2

Portable Device Dependent

Bus Interface

PCIe 3.0 x16

PCIe 4.0 x16

Other

Launch Price

299 USD

—

Production

End-of-life

End-of-life

Predecessor

GeForce 500

GeForce 20 Mobile

Successor

GeForce 700

—

View GeForce GTX 660 Ti Details View GeForce RTX 3080 Mobile Details