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 3080 Ti

CORE STATE GA102

VRAM 12 GB

CLOCK SPEED 1665 MHz

TDP 350 W

BUS WIDTH 384 bit

ARCHITECTURE Ampere

nm

PROCESS 8 nm

LAUNCH DATE 2021

PERFORMANCE BENCHMARKS

geekbench_metal

4,284

N/A

geekbench_opencl

11,347

191,309

geekbench_vulkan

11,368

171,798

3dmark_3dmark_steel_nomad_dx12

N/A

5,077

passmark_directx_10

N/A

184

passmark_directx_11

N/A

223

passmark_directx_12

N/A

110

passmark_directx_9

N/A

274

passmark_g2d

N/A

1,091

passmark_g3d

N/A

26,896

passmark_gpu_compute

N/A

15,282

DETAILED SPECIFICATIONS

SPECIFICATION

GTX 660

RTX 3080 Ti

Core Specs

Shading Units

960

10,240 +966.7%

Shaders

960

10,240 +966.7%

TMUs

80

320 +300.0%

ROPs

24

112 +366.7%

SM Count

—

80

Clocks

Base Clock

980 MHz

1365 MHz

Boost Clock

1032 MHz

1665 MHz

Memory Clock

1502 MHz 6 Gbps effective

1188 MHz 19 Gbps effective

Memory

Memory Size

2 GB

12 GB

VRAM (MB)

2,048

12,288 +500.0%

Memory Type

GDDR5

GDDR6X

Memory Bus

192 bit

384 bit

Bandwidth

144.2 GB/s

912.4 GB/s

Cache

L1 Cache

16 KB (per SMX)

128 KB (per SM)

L2 Cache

384 KB

6 MB

Performance

Pixel Rate

20.64 GPixel/s

186.5 GPixel/s

Texture Rate

82.56 GTexel/s

532.8 GTexel/s

FP32 (TFLOPS)

1.981 TFLOPS

34.10 TFLOPS

FP64 (TFLOPS)

82.56 GFLOPS (1:24)

532.8 GFLOPS (1:64)

FP16 (TFLOPS)

—

34.10 TFLOPS (1:1)

AI/RT

RT Cores

—

80

Tensor Cores

—

320

Power

TDP

140 W

350 W

TDP (W)

140

350 +150.0%

Suggested PSU

300 W

750 W

Power Connectors

1x 6-pin

1x 12-pin

Architecture

Architecture

Kepler

Ampere

GPU Name

GK106

GA102

Generation

GeForce 600

GeForce 30

Process Size

28 nm

8 nm

Transistors

2,540 million

28,300 million

Die Size

221 mm²

628 mm²

Foundry

TSMC

Samsung

Density

11.5M / mm²

45.1M / 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

Dual-slot

Length

241 mm 9.5 inches

285 mm 11.2 inches

Height

—

112 mm 4.4 inches

Outputs

2x DVI1x HDMI 1.4a1x DisplayPort 1.2

1x HDMI 2.13x DisplayPort 1.4a

Bus Interface

PCIe 3.0 x16

PCIe 4.0 x16

Other

Launch Price

229 USD

1,199 USD

Production

End-of-life

End-of-life

Predecessor

GeForce 500

GeForce 20

Successor

GeForce 700

GeForce 40

View GeForce GTX 660 Details View GeForce RTX 3080 Ti Details