NVIDIA GeForce GTX 660 Ti vs AMD Radeon RX 7900 XT

VS

NVIDIA GeForce GTX 660 Ti

AMD Radeon RX 7900 XT

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Ti and 20GB VRAM Radeon RX 7900 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 300W)

AMD Radeon RX 7900 XT 's Advantages

Released 10 years and 3 months late

Boost Clock has increased by 144% (2394MHz vs 980MHz)

More VRAM (20GB vs 2GB)

Larger VRAM bandwidth (800.0GB/s vs 144.2GB/s)

4032 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 660 Ti

2.634 TFLOPS

Radeon RX 7900 XT +1854%

51.48 TFLOPS

3DMark Time Spy

GeForce GTX 660 Ti

1627

Radeon RX 7900 XT +1554%

26911

Blender

GeForce GTX 660 Ti

146

Radeon RX 7900 XT +2574%

3905

GeForce GTX 660 Ti

VS

Radeon RX 7900 XT

Graphics Card

Aug 2012

Release Date

Nov 2022

GeForce 600

Generation

Navi III

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

915 MHz

Base Clock

1387 MHz

980 MHz

Boost Clock

2394 MHz

1502 MHz

Memory Clock

2500 MHz

Memory

2GB

Memory Size

20GB

GDDR5

Memory Type

GDDR6

192bit

Memory Bus

320bit

144.2GB/s

Bandwidth

800.0GB/s

Render Config

-

Compute Units

84

-

1344

Shading Units

5376

112

TMUs

336

24

ROPs

192

-

RT Cores

84

16 KB (per SMX)

L1 Cache

256 KB per Array

384 KB

L2 Cache

6 MB

-

L3 Cache

80 MB

Theoretical Performance

27.44 GPixel/s

Pixel Rate

459.6 GPixel/s

109.8 GTexel/s

Texture Rate

804.4 GTexel/s

-

FP16 (half)

103.0 TFLOPS

2.634 TFLOPS

FP32 (float)

51.48 TFLOPS

109.8 GFLOPS

FP64 (double)

1.609 TFLOPS

Board Design

150W

TDP

300W

450 W

Suggested PSU

700 W

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

Outputs

1x HDMI 2.1a 2x DisplayPort 2.1 1x USB Type-C

2x 6-pin

Power Connectors

2x 8-pin

Graphics Processor

GK104

GPU Name

Navi 31

GK104-300-KD-A2

GPU Variant

Navi 31 XT (215-145000156)

Kepler

Architecture

RDNA 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

5 nm

3.54 billion

Transistors

57.7 billion

294 mm²

Die Size

529 mm²

Graphics Features

12 (11_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

2.2

1.1

Vulkan

1.3

3.0

CUDA

-

5.1

Shader Model

6.7

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