AMD Radeon RX 6800S vs AMD Radeon RX 7900 XTX


AMD Radeon RX 6800S on Amazon USA
AMD Radeon RX 7900 XTX on Amazon USA

Comparison of the technical characteristics between the graphics cards, with AMD Radeon RX 6800S on one side and AMD Radeon RX 7900 XTX on the other side, also their respective performances with the benchmarks. The first is dedicated to the laptop sector, it has 2048 shading units, a maximum frequency of 2.1 GHz, its lithography is 7 nm. The second is used on the desktop segment, it includes 6144 shading units, a maximum frequency of 2.5 GHz, its lithography is 5 nm. The following table also compares the boost clock, the number of shading units (if indicated), of execution units, the amount of cache memory, the maximum memory capacity, the memory bus width, the release date, the number of PCIe lanes, the values ​​obtained in various benchmarks.







Specification comparison:


Graphics card AMD Radeon RX 6800S AMD Radeon RX 7900 XTX
Market (main) Laptop Desktop
Release date Q1 2022 Q4 2022
Model number Radeon RX 6800S 215-145000146,
Navi 31 XTX
GPU name Navi 21 Navi 31
Architecture RDNA 2.0 RDNA 3.0
Generation Mobility Radeon Navi II Navi III RX 7000
Lithography 7 nm 5 nm
Transistors 11,060,000,000 57,700,000,000
Bus interface PCIe 4.0 x8 PCIe 4.0 x16
GPU base clock 1,800 MHz 1,855 MHz
GPU game clock 1,975 MHz 2,269 MHz
GPU boost clock 2,100 MHz 2,499 MHz
Memory frequency 2,000 MHz 2,500 MHz
Effective memory speed 16 Gbps 20 Gbps
Memory size 8 GB 24 GB
Memory type GDDR6 GDDR6
Memory bus 128 bit 384 bit
Memory bandwidth 256.0 GB/s 960.0 GB/s
TDP 100 W 355 W
Max display resolution

-

7680 × 4320@60Hz (DP),
3840 x 2160@144Hz (DP),
7680 × 4320@60Hz (HDMI),
3840 x 2160@120Hz (HDMI)
Video decoding - H.265, HEVC, H.264 4K
Video encoding - H.265, HEVC, H.264 4K
Cores (compute units, SM, SMX) 32 96
Shading units 2,048 6,144
TMUs 128 384
ROPs 64 192
RT cores 32 96
Cache memory 32 MB 96 MB
Pixel fillrate 134.4 GP/s 479.8 GP/s
Texture fillrate 268.8 GT/s 959.6 GT/s
Performance FP16 (half) 17.2 TFLOPS 122.8 TFLOPS
Performance FP32 (float) 8.6 TFLOPS 61.4 TFLOPS
Performance FP64 (double) 537.6 GFLOPS 1.9 TFLOPS
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We can better compare what are the technical differences between the two graphics cards.


Performance comparison with the benchmarks:


Performance comparison between the two processors, for this we consider the results generated on benchmark software such as Geekbench.


FP32 Performance in GFLOPS
AMD Radeon RX 7900 XTX 61,415
AMD Radeon RX 6800S 8,602


The difference is 614%.


Single-precision floating-point format, also called FP32, is a computer number format that typically occupies 32 bits in PC memory. This represents a wide dynamic range of numeric values that employs a floating point. FP32 power helps assess the video card's capabilities for generating rendering workloads. Video games use INT32 and FP32 cores to manage calculations with integers and numbers with decimals in order to produce maps, bone matrices on which the vertex shaders will calculate the vertices. Values in single precision format are mainly used in video games and 3D software.


See also:

AMD Radeon RX 6800AMD Radeon RX 6800 XTAMD Radeon RX 6800M

AMD Radeon RX 7900 XT

Equivalence:

AMD Radeon RX 6800S Nvidia EquivalentAMD Radeon RX 7900 XTX Nvidia Equivalent




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