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 5080

CORE STATE GB203

VRAM 16 GB

CLOCK SPEED 2617 MHz

TDP 360 W

BUS WIDTH 256 bit

ARCHITECTURE Blackwell 2.0

nm

PROCESS 5 nm

LAUNCH DATE 2025

PERFORMANCE BENCHMARKS

geekbench_opencl

15,095

264,461

geekbench_vulkan

15,511

257,942

3dmark_3dmark_steel_nomad_dx12

N/A

8,637

passmark_directx_10

N/A

208

passmark_directx_11

N/A

324

passmark_directx_12

N/A

151

passmark_directx_9

N/A

389

passmark_g2d

N/A

1,415

passmark_g3d

N/A

36,565

passmark_gpu_compute

N/A

21,789

DETAILED SPECIFICATIONS

SPECIFICATION

GTX 660 Ti

RTX 5080

Core Specs

Shading Units

1,344

10,752 +700.0%

Shaders

1,344

10,752 +700.0%

TMUs

112

336 +200.0%

ROPs

24

112 +366.7%

SM Count

—

84

Clocks

Base Clock

915 MHz

2295 MHz

Boost Clock

980 MHz

2617 MHz

Memory Clock

1502 MHz 6 Gbps effective

1875 MHz 30 Gbps effective

Memory

Memory Size

2 GB

16 GB

VRAM (MB)

2,048

16,384 +700.0%

Memory Type

GDDR5

GDDR7

Memory Bus

192 bit

256 bit

Bandwidth

144.2 GB/s

960.0 GB/s

Cache

L1 Cache

16 KB (per SMX)

128 KB (per SM)

L2 Cache

384 KB

64 MB

Performance

Pixel Rate

27.44 GPixel/s

293.1 GPixel/s

Texture Rate

109.8 GTexel/s

879.3 GTexel/s

FP32 (TFLOPS)

2.634 TFLOPS

56.28 TFLOPS

FP64 (TFLOPS)

109.8 GFLOPS (1:24)

879.3 GFLOPS (1:64)

FP16 (TFLOPS)

—

56.28 TFLOPS (1:1)

AI/RT

RT Cores

—

84

Tensor Cores

—

336

Power

TDP

150 W

360 W

TDP (W)

150

360 +140.0%

Suggested PSU

450 W

750 W

Power Connectors

2x 6-pin

1x 16-pin

Architecture

Architecture

Kepler

Blackwell 2.0

GPU Name

GK104

GB203

Generation

GeForce 600

GeForce 50

Process Size

28 nm

5 nm

Transistors

3,540 million

45,600 million

Die Size

294 mm²

378 mm²

Foundry

TSMC

TSMC

Density

12.0M / 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

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

999 USD

Production

End-of-life

Active

Predecessor

GeForce 500

GeForce 40

Successor

GeForce 700

—

View GeForce GTX 660 Ti Details View GeForce RTX 5080 Details