Radeon RX 6600 XT
AMD Radeon RX 6600 XT vs AMD Radeon RX 6800S
GPU Comparison Result
Below are the results of a comparison of the characteristics and performance of the AMD Radeon RX 6600 XT and AMD Radeon RX 6800S video cards. This comparison will help you determine which one best suits your needs.
Basic
Label Name
AMD
AMD
Launch Date
July 2021
January 2022
Platform
Desktop
Mobile
Model Name
Radeon RX 6600 XT
Radeon RX 6800S
Generation
Navi II
Mobility Radeon
Base Clock
1968MHz
1800MHz
Boost Clock
2589MHz
2100MHz
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
2048
Transistors
11,060 million
11,060 million
RT Cores
32
32
Compute Units
32
32
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
128
L1 Cache
128 KB per Array
128 KB per Array
L2 Cache
2MB
2MB
Bus Interface
PCIe 4.0 x8
PCIe 4.0 x8
Foundry
TSMC
TSMC
Process Size
7 nm
7 nm
Architecture
RDNA 2.0
RDNA 2.0
TDP
160W
100W
Memory Specifications
Memory Size
8GB
8GB
Memory Type
GDDR6
GDDR6
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.
128bit
128bit
Memory Clock
2000MHz
2000MHz
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.
256.0 GB/s
256.0 GB/s
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.
165.7 GPixel/s
134.4 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.
331.4 GTexel/s
268.8 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.
21.21 TFLOPS
17.20 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.
662.8 GFLOPS
537.6 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.
11.029
TFlops
8.773
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
1.3
OpenCL Version
2.1
2.1
OpenGL
4.6
4.6
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
Power Connectors
1x 8-pin
None
Shader Model
6.7
6.5
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
64
Suggested PSU
450W
-
Advantages
Radeon RX 6600 XT
- Higher Boost Clock: 2589MHz (2589MHz vs 2100MHz)
Radeon RX 6800S
- Newer Launch Date: January 2022 (July 2021 vs January 2022)
FP32 (float)
Radeon RX 6600 XT
+26%
11.029
TFlops
Radeon RX 6800S
8.773
TFlops
3DMark Time Spy
Radeon RX 6600 XT
+6%
9645
Radeon RX 6800S
9088
Blender
Radeon RX 6600 XT
+6%
1128
Radeon RX 6800S
1064
Vulkan
Radeon RX 6600 XT
+10%
87752
Radeon RX 6800S
79806
OpenCL
Radeon RX 6600 XT
+12%
80858
Radeon RX 6800S
72374
SiliconCat Rating
136
Ranks 136 among Desktop GPU on our website
278
Ranks 278 among all GPU on our website
59
Ranks 59 among Mobile GPU on our website
328
Ranks 328 among all GPU on our website
Radeon RX 6800S
