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NVIDIA GeForce GTX 660

vs

AMD Radeon RX 570

GPU Comparison Result

Below are the results of a comparison of NVIDIA GeForce GTX 660 and AMD Radeon RX 570 video cards based on key performance characteristics, as well as power consumption and much more.

Advantages

AMD Radeon RX 570

Higher Boost Clock: 1244MHz (1032MHz vs 1244MHz)
Larger Memory Size: 4GB (2GB vs 4GB)
Higher Bandwidth: 224.0 GB/s (144.2 GB/s vs 224.0 GB/s)
More Shading Units: 2048 (960 vs 2048)
Newer Launch Date: April 2017 (September 2012 vs April 2017)

Basic

NVIDIA

Label Name

AMD

September 2012

Launch Date

April 2017

Desktop

Platform

Desktop

GeForce GTX 660

Model Name

Radeon RX 570

GeForce 600

Generation

Polaris

980MHz

Base Clock

1168MHz

1032MHz

Boost Clock

1244MHz

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

2,540 million

Transistors

5,700 million

Compute Units

TMUs

Texture Mapping Units (TMUs) serve as components of the GPU, which are capable of rotating, scaling, and distorting binary images, and then placing them as textures onto any plane of a given 3D model. This process is called texture mapping.

128

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

Kepler

Architecture

GCN 4.0

Memory Specifications

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

The memory bus width refers to the number of bits of data that the video memory can transfer within a single clock cycle. The larger the bus width, the greater the amount of data that can be transmitted instantaneously, making it one of the crucial parameters of video memory. The memory bandwidth is calculated as: Memory Bandwidth = Memory Frequency x Memory Bus Width / 8. Therefore, when the memory frequencies are similar, the memory bus width will determine the size of the memory bandwidth.

256bit

1502MHz

Memory Clock

1750MHz

144.2 GB/s

Bandwidth

Memory bandwidth refers to the data transfer rate between the graphics chip and the video memory. It is measured in bytes per second, and the formula to calculate it is: memory bandwidth = working frequency × memory bus width / 8 bits.

224.0 GB/s

Display and Media

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

Outputs

1x DVI
1x HDMI 2.0b
3x DisplayPort 1.4a

Theoretical Performance

20.64 GPixel/s

Pixel Rate

Pixel fill rate refers to the number of pixels a graphics processing unit (GPU) can render per second, measured in MPixels/s (million pixels per second) or GPixels/s (billion pixels per second). It is the most commonly used metric to evaluate the pixel processing performance of a graphics card.

39.81 GPixel/s

82.56 GTexel/s

Texture Rate

Texture fill rate refers to the number of texture map elements (texels) that a GPU can map to pixels in a single second.

159.2 GTexel/s

FP16 (half)

An important metric for measuring GPU performance is floating-point computing capability. Half-precision floating-point numbers (16-bit) are used for applications like machine learning, where lower precision is acceptable. Single-precision floating-point numbers (32-bit) are used for common multimedia and graphics processing tasks, while double-precision floating-point numbers (64-bit) are required for scientific computing that demands a wide numeric range and high accuracy.

5.095 TFLOPS

82.56 GFLOPS

FP64 (double)

An important metric for measuring GPU performance is floating-point computing capability. Double-precision floating-point numbers (64-bit) are required for scientific computing that demands a wide numeric range and high accuracy, while single-precision floating-point numbers (32-bit) are used for common multimedia and graphics processing tasks. Half-precision floating-point numbers (16-bit) are used for applications like machine learning, where lower precision is acceptable.

318.5 GFLOPS

2.021 TFLOPS

FP32 (float)

An important metric for measuring GPU performance is floating-point computing capability. Single-precision floating-point numbers (32-bit) are used for common multimedia and graphics processing tasks, while double-precision floating-point numbers (64-bit) are required for scientific computing that demands a wide numeric range and high accuracy. Half-precision floating-point numbers (16-bit) are used for applications like machine learning, where lower precision is acceptable.

4.993 TFLOPS

Miscellaneous

960

Shading Units

The most fundamental processing unit is the Streaming Processor (SP), where specific instructions and tasks are executed. GPUs perform parallel computing, which means multiple SPs work simultaneously to process tasks.

2048

16 KB (per SMX)

L1 Cache

16 KB (per CU)

384KB

L2 Cache

2MB

140W

TDP

150W

1.1

Vulkan Version

Vulkan is a cross-platform graphics and compute API by Khronos Group, offering high performance and low CPU overhead. It lets developers control the GPU directly, reduces rendering overhead, and supports multi-threading and multi-core processors.

1.2

3.0

OpenCL Version

2.1

4.6

OpenGL

4.6

3.0

CUDA

12 (11_0)

DirectX

12 (12_0)

1x 6-pin

Power Connectors

1x 6-pin

ROPs

The Raster Operations Pipeline (ROPs) is primarily responsible for handling lighting and reflection calculations in games, as well as managing effects like anti-aliasing (AA), high resolution, smoke, and fire. The more demanding the anti-aliasing and lighting effects in a game, the higher the performance requirements for the ROPs; otherwise, it may result in a sharp drop in frame rate.

5.1

Shader Model

6.4

300W

Suggested PSU

450W