AMD Radeon RX 7800 XT vs AMD Radeon R9 Nano


AMD Radeon RX 7800 XT on Amazon USA
AMD Radeon R9 Nano on Amazon USA

Comparison of the technical characteristics between the graphics cards, with AMD Radeon RX 7800 XT on one side and AMD Radeon R9 Nano on the other side. The first is dedicated to the desktop sector, it has 8192 shading units, a maximum frequency of 2.6 GHz, its lithography is 5 nm. The second is used on the desktop segment, it includes 4096 shading units, a maximum frequency of 1.0 GHz, its lithography is 28 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.







Specifications:


Warning: the information concerning AMD Radeon RX 7800 XT comes in part from rumor-based sources.


Graphics card AMD Radeon RX 7800 XT AMD Radeon R9 Nano
Market (main) Desktop Desktop
Release date Q4 2022 Q3 2015
Model number Navi 32 XT 215-0862120, Fiji XT CA
GPU name Navi 32 Fiji
Architecture RDNA 3.0 GCN 3.0
Generation Navi III RX 7000 Pirate Islands R9 300
Lithography 5 nm 28 nm
Bus interface PCIe 5.0 x16 PCIe 3.0 x16
GPU base clock 2.40 GHz 1.00 GHz
GPU boost clock 2.60 GHz 1.00 GHz
Memory frequency 2,250 MHz 500 MHz
Effective memory speed 18 GB/s 1 GB/s
Memory size 12 GB 4 GB
Memory type GDDR6 HBM
Memory bus 192 bit 4096 bit
Memory bandwidth 432.0 GB/s 512.0 GB/s
TDP 300 W 175 W
Suggested PSU750W ATX Power Supply 450W ATX Power Supply
Multicard technology - -
Outputs

1x HDMI
3x DisplayPort

1x HDMI
3x DisplayPort
Cores (compute units, SM, SMX) 128 64
Shading units 8,192 4,096
TMUs 512 256
ROPs 192 64
Cache memory 384 MB 2 MB
Pixel fillrate 499.2 GP/s 64.0 GP/s
Texture fillrate 1,331.0 GT/s 256.0 GT/s
Performance FP16 (half) 85.2 TFLOPS 8.2 TFLOPS
Performance FP32 (float) 42.6 TFLOPS 8.2 TFLOPS
Performance FP64 (double) 2.7 TFLOPS 512 GFLOPS
Amazon
eBay






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We can better compare what are the technical differences between the two graphics cards.


Performances :


Performance comparison between the two processors, for this we consider the results generated on benchmark software such as Geekbench 4.


FP32 Performance in GFLOPS
AMD Radeon RX 7800 XT 42,600
AMD Radeon R9 Nano 8,192


The difference is 420%.


Single precision floating point format, also known as 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.


Equivalence:

AMD Radeon RX 7800 XT Nvidia equivalentAMD Radeon R9 Nano Nvidia equivalent




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