AMD Radeon RX 7700 vs NVIDIA GeForce GTX 660

VS

AMD Radeon RX 7700

NVIDIA GeForce GTX 660

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

Main Differences

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

NVIDIA GeForce GTX 660 's Advantages

Lower TDP (140W vs 200W)

Score

Benchmark

FP32 (float)

Radeon RX 7700 +1512%

31.95 TFLOPS

GeForce GTX 660

1.981 TFLOPS

Radeon RX 7700

VS

GeForce GTX 660

Graphics Card

Unknown

Release Date

Sep 2012

Navi III

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1900 MHz

Base Clock

980 MHz

2600 MHz

Boost Clock

1032 MHz

2250 MHz

Memory Clock

1502 MHz

Memory

12GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

192bit

Memory Bus

192bit

432.0GB/s

Bandwidth

144.2GB/s

Render Config

48

Compute Units

-

3072

Shading Units

960

192

TMUs

80

96

ROPs

24

-

48

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per SMX)

2 MB

L2 Cache

384 KB

64 MB

L3 Cache

-

Theoretical Performance

249.6 GPixel/s

Pixel Rate

20.64 GPixel/s

499.2 GTexel/s

Texture Rate

82.56 GTexel/s

63.90 TFLOPS

FP16 (half)

-

31.95 TFLOPS

FP32 (float)

1.981 TFLOPS

998.4 GFLOPS

FP64 (double)

82.56 GFLOPS

Board Design

200W

TDP

140W

550 W

Suggested PSU

300 W

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

Outputs

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

1x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Navi 32

GPU Name

GK106

Navi 32

GPU Variant

GK106-400-A1

RDNA 3.0

Architecture

Kepler

TSMC

Foundry

TSMC

5 nm

Process Size

28 nm

28.1 billion

Transistors

2.54 billion

346 mm²

Die Size

221 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.2

OpenCL

3.0

1.3

Vulkan

1.1

-

CUDA

3.0

6.7

Shader Model

5.1

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