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 3090

CORE STATE GA102

VRAM 24 GB

CLOCK SPEED 1695 MHz

TDP 350 W

BUS WIDTH 384 bit

ARCHITECTURE Ampere

nm

PROCESS 8 nm

LAUNCH DATE 2020

PERFORMANCE BENCHMARKS

geekbench_metal

4,284

N/A

geekbench_opencl

11,347

191,142

geekbench_vulkan

11,368

174,310

3dmark_3dmark_steel_nomad_dx12

N/A

5,118

passmark_directx_10

N/A

182

passmark_directx_11

N/A

220

passmark_directx_12

N/A

110

passmark_directx_9

N/A

268

passmark_g2d

N/A

1,063

passmark_g3d

N/A

26,645

passmark_gpu_compute

N/A

15,356

DETAILED SPECIFICATIONS

SPECIFICATION

GTX 660

RTX 3090

Core Specs

Shading Units

960

10,496 +993.3%

Shaders

960

10,496 +993.3%

TMUs

80

328 +310.0%

ROPs

24

112 +366.7%

SM Count

—

82

Clocks

Base Clock

980 MHz

1395 MHz

Boost Clock

1032 MHz

1695 MHz

Memory Clock

1502 MHz 6 Gbps effective

1219 MHz 19.5 Gbps effective

Memory

Memory Size

2 GB

24 GB

VRAM (MB)

2,048

24,576 +1100.0%

Memory Type

GDDR5

GDDR6X

Memory Bus

192 bit

384 bit

Bandwidth

144.2 GB/s

936.2 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

189.8 GPixel/s

Texture Rate

82.56 GTexel/s

556.0 GTexel/s

FP32 (TFLOPS)

1.981 TFLOPS

35.58 TFLOPS

FP64 (TFLOPS)

82.56 GFLOPS (1:24)

556.0 GFLOPS (1:64)

FP16 (TFLOPS)

—

35.58 TFLOPS (1:1)

AI/RT

RT Cores

—

82

Tensor Cores

—

328

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

Triple-slot

Length

241 mm 9.5 inches

336 mm 13.2 inches

Height

—

140 mm 5.5 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

1,499 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 3090 Details