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 5090 Mobile

CORE STATE GB203

VRAM 24 GB

CLOCK SPEED 1515 MHz

TDP 95 W

BUS WIDTH 256 bit

ARCHITECTURE Blackwell 2.0

nm

PROCESS 5 nm

LAUNCH DATE 2025

PERFORMANCE BENCHMARKS

geekbench_metal

4,284

N/A

geekbench_opencl

11,347

201,834

geekbench_vulkan

11,368

198,405

3dmark_3dmark_steel_nomad_dx12

N/A

5,871

passmark_directx_10

N/A

183

passmark_directx_11

N/A

269

passmark_directx_12

N/A

138

passmark_directx_9

N/A

324

passmark_g2d

N/A

1,057

passmark_g3d

N/A

30,034

passmark_gpu_compute

N/A

13,401

DETAILED SPECIFICATIONS

SPECIFICATION

GTX 660

RTX 5090 Mobile

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

990 MHz

Boost Clock

1032 MHz

1515 MHz

Memory Clock

1502 MHz 6 Gbps effective

1750 MHz 28 Gbps effective

Memory

Memory Size

2 GB

24 GB

VRAM (MB)

2,048

24,576 +1100.0%

Memory Type

GDDR5

GDDR7

Memory Bus

192 bit

256 bit

Bandwidth

144.2 GB/s

896.0 GB/s

Cache

L1 Cache

16 KB (per SMX)

128 KB (per SM)

L2 Cache

384 KB

64 MB

Performance

Pixel Rate

20.64 GPixel/s

169.7 GPixel/s

Texture Rate

82.56 GTexel/s

496.9 GTexel/s

FP32 (TFLOPS)

1.981 TFLOPS

31.80 TFLOPS

FP64 (TFLOPS)

82.56 GFLOPS (1:24)

496.9 GFLOPS (1:64)

FP16 (TFLOPS)

—

31.80 TFLOPS (1:1)

AI/RT

RT Cores

—

82

Tensor Cores

—

328

Power

TDP

140 W

95 W

TDP (W)

140

95 -32.1%

Suggested PSU

300 W

—

Power Connectors

1x 6-pin

None

Architecture

Architecture

Kepler

Blackwell 2.0

GPU Name

GK106

GB203

Generation

GeForce 600

GeForce 50 Mobile

Process Size

28 nm

5 nm

Transistors

2,540 million

45,600 million

Die Size

221 mm²

378 mm²

Foundry

TSMC

TSMC

Density

11.5M / mm²

120.6M / 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

12.0

Shader Model

6.5 (5.1)

6.8

Physical

Slot Width

Dual-slot

IGP

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 5.0 x16

Other

Launch Price

229 USD

—

Production

End-of-life

Active

Predecessor

GeForce 500

GeForce 40 Mobile

Successor

GeForce 700

—

View GeForce GTX 660 Details View GeForce RTX 5090 Mobile Details