NVIDIA GeForce GTX 660 OEM vs AMD Radeon RX 6500 XT

VS

NVIDIA GeForce GTX 660 OEM

AMD Radeon RX 6500 XT

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GTX 660 OEM and 4GB VRAM Radeon RX 6500 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660 OEM 's Advantages

128 additional rendering cores

AMD Radeon RX 6500 XT 's Advantages

Released 9 years and 5 months late

Boost Clock has increased by 217% (2815MHz vs 888MHz)

More VRAM (4GB vs 1536GB)

Larger VRAM bandwidth (143.9GB/s vs 134.4GB/s)

Lower TDP (107W vs 130W)

Score

Benchmark

FP32 (float)

GeForce GTX 660 OEM

2.046 TFLOPS

Radeon RX 6500 XT +181%

5.765 TFLOPS

GeForce GTX 660 OEM

VS

Radeon RX 6500 XT

Graphics Card

Aug 2012

Release Date

Jan 2022

GeForce 600

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x4

Clock Speeds

823 MHz

Base Clock

2310 MHz

888 MHz

Boost Clock

2815 MHz

1400 MHz

Memory Clock

2248 MHz

Memory

1536MB

Memory Size

4GB

GDDR5

Memory Type

GDDR6

192bit

Memory Bus

64bit

134.4GB/s

Bandwidth

143.9GB/s

Render Config

-

Compute Units

16

-

1152

Shading Units

1024

96

TMUs

64

24

ROPs

32

-

RT Cores

16

16 KB (per SMX)

L1 Cache

128 KB per Array

384 KB

L2 Cache

1024 KB

-

L3 Cache

16 MB

Theoretical Performance

21.31 GPixel/s

Pixel Rate

90.08 GPixel/s

85.25 GTexel/s

Texture Rate

180.2 GTexel/s

-

FP16 (half)

11.53 TFLOPS

2.046 TFLOPS

FP32 (float)

5.765 TFLOPS

85.25 GFLOPS

FP64 (double)

360.3 GFLOPS

Board Design

130W

TDP

107W

300 W

Suggested PSU

300 W

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

Outputs

1x HDMI 2.1 1x DisplayPort 1.4a

1x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

GK104

GPU Name

Navi 24

GK104-200-KD-A2

GPU Variant

Navi 24 XT (215-135000006)

Kepler

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

6 nm

3.54 billion

Transistors

5.4 billion

294 mm²

Die Size

107 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

6.6

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