NVIDIA GeForce GTX 660 Rev. 2 vs AMD Radeon RX 7700

VS

NVIDIA GeForce GTX 660 Rev. 2

AMD Radeon RX 7700

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Rev. 2 and 12GB VRAM Radeon RX 7700 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660 Rev. 2 's Advantages

Lower TDP (140W vs 200W)

AMD Radeon RX 7700 's Advantages

Boost Clock has increased by 152% (2600MHz vs 1032MHz)

More VRAM (12GB vs 2GB)

Larger VRAM bandwidth (432.0GB/s vs 144.2GB/s)

2112 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 660 Rev. 2

1.981 TFLOPS

Radeon RX 7700 +1512%

31.95 TFLOPS

GeForce GTX 660 Rev. 2

VS

Radeon RX 7700

Graphics Card

Sep 2014

Release Date

Unknown

GeForce 600

Generation

Navi III

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

980 MHz

Base Clock

1900 MHz

1032 MHz

Boost Clock

2600 MHz

1502 MHz

Memory Clock

2250 MHz

Memory

2GB

Memory Size

12GB

GDDR5

Memory Type

GDDR6

192bit

Memory Bus

192bit

144.2GB/s

Bandwidth

432.0GB/s

Render Config

-

Compute Units

48

-

960

Shading Units

3072

80

TMUs

192

24

ROPs

96

-

RT Cores

48

16 KB (per SMX)

L1 Cache

128 KB per Array

384 KB

L2 Cache

2 MB

-

L3 Cache

64 MB

Theoretical Performance

20.64 GPixel/s

Pixel Rate

249.6 GPixel/s

82.56 GTexel/s

Texture Rate

499.2 GTexel/s

-

FP16 (half)

63.90 TFLOPS

1.981 TFLOPS

FP32 (float)

31.95 TFLOPS

82.56 GFLOPS

FP64 (double)

998.4 GFLOPS

Board Design

140W

TDP

200W

300 W

Suggested PSU

550 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

1x 8-pin

Graphics Processor

GK104

GPU Name

Navi 32

-

GPU Variant

Navi 32

Kepler

Architecture

RDNA 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

5 nm

3.54 billion

Transistors

28.1 billion

294 mm²

Die Size

346 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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