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 3070 Ti

CORE STATE GA104

VRAM 8 GB

CLOCK SPEED 1770 MHz

TDP 290 W

BUS WIDTH 256 bit

ARCHITECTURE Ampere

nm

PROCESS 8 nm

LAUNCH DATE 2021

PERFORMANCE BENCHMARKS

geekbench_opencl

15,095

137,518

geekbench_vulkan

15,511

130,778

3dmark_3dmark_steel_nomad_dx12

N/A

3,478

passmark_directx_10

N/A

155

passmark_directx_11

N/A

192

passmark_directx_12

N/A

91

passmark_directx_9

N/A

261

passmark_g2d

N/A

1,055

passmark_g3d

N/A

23,356

passmark_gpu_compute

N/A

11,601

DETAILED SPECIFICATIONS

SPECIFICATION

GTX 660 Ti

RTX 3070 Ti

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

1575 MHz

Boost Clock

980 MHz

1770 MHz

Memory Clock

1502 MHz 6 Gbps effective

1188 MHz 19 Gbps effective

Memory

Memory Size

2 GB

8 GB

VRAM (MB)

2,048

8,192 +300.0%

Memory Type

GDDR5

GDDR6X

Memory Bus

192 bit

256 bit

Bandwidth

144.2 GB/s

608.3 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

169.9 GPixel/s

Texture Rate

109.8 GTexel/s

339.8 GTexel/s

FP32 (TFLOPS)

2.634 TFLOPS

21.75 TFLOPS

FP64 (TFLOPS)

109.8 GFLOPS (1:24)

339.8 GFLOPS (1:64)

FP16 (TFLOPS)

—

21.75 TFLOPS (1:1)

AI/RT

RT Cores

—

48

Tensor Cores

—

192

Power

TDP

150 W

290 W

TDP (W)

150

290 +93.3%

Suggested PSU

450 W

600 W

Power Connectors

2x 6-pin

1x 12-pin

Architecture

Architecture

Kepler

Ampere

GPU Name

GK104

GA104

Generation

GeForce 600

GeForce 30

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

Dual-slot

Length

241 mm 9.5 inches

267 mm 10.5 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

299 USD

599 USD

Production

End-of-life

End-of-life

Predecessor

GeForce 500

GeForce 20

Successor

GeForce 700

GeForce 40

View GeForce GTX 660 Ti Details View GeForce RTX 3070 Ti Details