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 5090

CORE STATE GB202

VRAM 32 GB

CLOCK SPEED 2407 MHz

TDP 575 W

BUS WIDTH 512 bit

ARCHITECTURE Blackwell 2.0

nm

PROCESS 5 nm

LAUNCH DATE 2025

PERFORMANCE BENCHMARKS

geekbench_opencl

15,095

380,114

geekbench_vulkan

15,511

379,571

3dmark_3dmark_steel_nomad_dx12

N/A

14,411

passmark_directx_10

N/A

226

passmark_directx_11

N/A

341

passmark_directx_12

N/A

185

passmark_directx_9

N/A

395

passmark_g2d

N/A

1,413

passmark_g3d

N/A

39,650

passmark_gpu_compute

N/A

26,756

DETAILED SPECIFICATIONS

SPECIFICATION

GTX 660 Ti

RTX 5090

Core Specs

Shading Units

1,344

21,760 +1519.0%

Shaders

1,344

21,760 +1519.0%

TMUs

112

680 +507.1%

ROPs

24

176 +633.3%

SM Count

—

170

Clocks

Base Clock

915 MHz

2017 MHz

Boost Clock

980 MHz

2407 MHz

Memory Clock

1502 MHz 6 Gbps effective

1750 MHz 28 Gbps effective

Memory

Memory Size

2 GB

32 GB

VRAM (MB)

2,048

32,768 +1500.0%

Memory Type

GDDR5

GDDR7

Memory Bus

192 bit

512 bit

Bandwidth

144.2 GB/s

1.79 TB/s

Cache

L1 Cache

16 KB (per SMX)

128 KB (per SM)

L2 Cache

384 KB

96 MB

Performance

Pixel Rate

27.44 GPixel/s

423.6 GPixel/s

Texture Rate

109.8 GTexel/s

1,636.8 GTexel/s

FP32 (TFLOPS)

2.634 TFLOPS

104.8 TFLOPS

FP64 (TFLOPS)

109.8 GFLOPS (1:24)

1.637 TFLOPS (1:64)

FP16 (TFLOPS)

—

104.8 TFLOPS (1:1)

AI/RT

RT Cores

—

170

Tensor Cores

—

680

Power

TDP

150 W

575 W

TDP (W)

150

575 +283.3%

Suggested PSU

450 W

950 W

Power Connectors

2x 6-pin

1x 16-pin

Architecture

Architecture

Kepler

Blackwell 2.0

GPU Name

GK104

GB202

Generation

GeForce 600

GeForce 50

Process Size

28 nm

5 nm

Transistors

3,540 million

92,200 million

Die Size

294 mm²

750 mm²

Foundry

TSMC

TSMC

Density

12.0M / mm²

122.9M / 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

Dual-slot

Length

241 mm 9.5 inches

304 mm 12 inches

Height

—

137 mm 5.4 inches

Outputs

2x DVI1x HDMI 1.4a1x DisplayPort 1.2

1x HDMI 2.1b3x DisplayPort 2.1b

Bus Interface

PCIe 3.0 x16

PCIe 5.0 x16

Other

Launch Price

299 USD

1,999 USD

Production

End-of-life

Active

Predecessor

GeForce 500

GeForce 40

Successor

GeForce 700

—

View GeForce GTX 660 Ti Details View GeForce RTX 5090 Details