NVIDIA GeForce GTX 660 OEM vs AMD Radeon RX 7900 XTX

VS

NVIDIA GeForce GTX 660 OEM

AMD Radeon RX 7900 XTX

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GTX 660 OEM and 24GB VRAM Radeon RX 7900 XTX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660 OEM 's Advantages

Lower TDP (130W vs 355W)

AMD Radeon RX 7900 XTX 's Advantages

Released 10 years and 3 months late

Boost Clock has increased by 181% (2498MHz vs 888MHz)

More VRAM (24GB vs 1536GB)

Larger VRAM bandwidth (960.0GB/s vs 134.4GB/s)

4992 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 660 OEM

2.046 TFLOPS

Radeon RX 7900 XTX +2900%

61.39 TFLOPS

GeForce GTX 660 OEM

VS

Radeon RX 7900 XTX

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

823 MHz

Base Clock

1929 MHz

888 MHz

Boost Clock

2498 MHz

1400 MHz

Memory Clock

2500 MHz

Memory

1536MB

Memory Size

24GB

GDDR5

Memory Type

GDDR6

192bit

Memory Bus

384bit

134.4GB/s

Bandwidth

960.0GB/s

Render Config

-

Compute Units

96

-

1152

Shading Units

6144

96

TMUs

384

24

ROPs

192

-

RT Cores

96

16 KB (per SMX)

L1 Cache

256 KB per Array

384 KB

L2 Cache

6 MB

-

L3 Cache

96 MB

Theoretical Performance

21.31 GPixel/s

Pixel Rate

479.6 GPixel/s

85.25 GTexel/s

Texture Rate

959.2 GTexel/s

-

FP16 (half)

122.8 TFLOPS

2.046 TFLOPS

FP32 (float)

61.39 TFLOPS

85.25 GFLOPS

FP64 (double)

1.918 TFLOPS

Board Design

130W

TDP

355W

300 W

Suggested PSU

750 W

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

Outputs

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

1x 6-pin

Power Connectors

2x 8-pin

Graphics Processor

GK104

GPU Name

Navi 31

GK104-200-KD-A2

GPU Variant

Navi 31 XTX (215-145000146)

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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