NVIDIA GeForce GTX 660 Ti vs AMD Radeon RX 6950 XT

VS

NVIDIA GeForce GTX 660 Ti AMD Radeon RX 6950 XT

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Ti and 16GB VRAM Radeon RX 6950 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660 Ti 's Advantages

Lower TDP (150W vs 335W)

AMD Radeon RX 6950 XT 's Advantages

Released 9 years and 9 months late

Boost Clock has increased by 136% (2310MHz vs 980MHz)

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (576.0GB/s vs 144.2GB/s)

3776 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 660 Ti

2.634 TFLOPS

Radeon RX 6950 XT +797%

23.65 TFLOPS

3DMark Time Spy

GeForce GTX 660 Ti

1627

Radeon RX 6950 XT +1218%

21448

Blender

GeForce GTX 660 Ti

138

Radeon RX 6950 XT +1993%

2889

GeForce GTX 660 Ti

VS

Radeon RX 6950 XT

Graphics Card

Aug 2012

Release Date

May 2022

GeForce 600

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

915 MHz

Base Clock

1860 MHz

980 MHz

Boost Clock

2310 MHz

1502 MHz

Memory Clock

2250 MHz

Memory

2GB

Memory Size

16GB

GDDR5

Memory Type

GDDR6

192bit

Memory Bus

256bit

144.2GB/s

Bandwidth

576.0GB/s

Render Config

-

SM Count

-

Compute Units

80

1344

Shading Units

5120

112

TMUs

320

24

ROPs

128

-

Tensor Cores

-

RT Cores

80

16 KB (per SMX)

L1 Cache

128 KB per Array

384 KB

L2 Cache

4 MB

Theoretical Performance

27.44 GPixel/s

Pixel Rate

295.7 GPixel/s

109.8 GTexel/s

Texture Rate

739.2 GTexel/s

-

FP16 (half)

47.31 TFLOPS

2.634 TFLOPS

FP32 (float)

23.65 TFLOPS

109.8 GFLOPS

FP64 (double)

1478 GFLOPS

Graphics Processor

GK104

GPU Name

Navi 21

GK104-300-KD-A2

GPU Variant

Navi 21 KXTX (215-121000289)

Kepler

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

7 nm

3.54 billion

Transistors

26.8 billion

294 mm²

Die Size

520 mm²

Board Design

150W

TDP

335W

450 W

Suggested PSU

700 W

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

Outputs

1x HDMI 2.1 2x DisplayPort 1.4a

2x 6-pin

Power Connectors

2x 8-pin

Graphics Features

12 (11_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.1

Vulkan

1.3

3.0

CUDA

-

5.1

Shader Model

6.5

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