Radeon RX 6700 XT
AMD Radeon RX 6700 XT vs AMD Radeon 660M
GPU Comparison Result
Below are the results of a comparison of the characteristics and performance of the AMD Radeon RX 6700 XT and AMD Radeon 660M video cards. This comparison will help you determine which one best suits your needs.
Basic
Label Name
AMD
AMD
Launch Date
March 2021
January 2022
Platform
Desktop
Integrated
Model Name
Radeon RX 6700 XT
Radeon 660M
Generation
Navi II
Rembrandt
Base Clock
2321MHz
1500MHz
Boost Clock
2581MHz
1900MHz
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.
2560
384
Transistors
17,200 million
13,100 million
RT Cores
40
6
Compute Units
40
6
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.
160
24
L1 Cache
128 KB per Array
128 KB per Array
L2 Cache
3MB
2MB
Bus Interface
PCIe 4.0 x16
PCIe 4.0 x8
Foundry
TSMC
TSMC
Process Size
7 nm
6 nm
Architecture
RDNA 2.0
RDNA 2.0
TDP
230W
15W
Memory Specifications
Memory Size
12GB
System Shared
Memory Type
GDDR6
System Shared
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.
192bit
System Shared
Memory Clock
2000MHz
SystemShared
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.
384.0 GB/s
System Dependent
Theoretical Performance
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.
165.2 GPixel/s
30.40 GPixel/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.
413.0 GTexel/s
45.60 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.
26.43 TFLOPS
2.918 TFLOPS
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.
825.9 GFLOPS
91.20 GFLOPS
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.
13.206
TFlops
1.458
TFlops
Miscellaneous
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.
1.3
1.2
OpenCL Version
2.1
2.0
OpenGL
4.6
4.6
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
Power Connectors
1x 6-pin + 1x 8-pin
None
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.
64
16
Shader Model
6.5
6.5
Suggested PSU
550W
-
Advantages
Radeon RX 6700 XT
- Higher Boost Clock: 2581MHz (2581MHz vs 1900MHz)
- More Shading Units: 2560 (2560 vs 384)
- Larger Memory Size: 12GB (12GB vs System Shared)
- Higher Bandwidth: 384.0 GB/s (384.0 GB/s vs System Dependent)
Radeon 660M
- Newer Launch Date: January 2022 (March 2021 vs January 2022)
FP32 (float)
Radeon RX 6700 XT
+806%
13.206
TFlops
Radeon 660M
1.458
TFlops
3DMark Time Spy
Radeon RX 6700 XT
+740%
12821
Radeon 660M
1526
Blender
Radeon RX 6700 XT
+1640%
1566
Radeon 660M
90
SiliconCat Rating
106
Ranks 106 among Desktop GPU on our website
215
Ranks 215 among all GPU on our website
880
Ranks 880 among all GPU on our website
Radeon 660M
