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Radeon R9 M395X vs Radeon RX 6500 XT

Intro

The Radeon R9 M395X uses a 28 nm design. AMD has set the core speed at 723 MHz. The GDDR5 memory works at a frequency of 1250 MHz on this model. It features 2048 SPUs along with 128 Texture Address Units and 32 Rasterization Operator Units.

Compare all that to the Radeon RX 6500 XT, which comes with a clock speed of 2200 MHz and a GDDR6 memory frequency of 2250 MHz. It also uses a 64-bit memory bus, and makes use of a 6 nm design. It is made up of 1024 SPUs, 64 Texture Address Units, and 32 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6500 XT 107 Watts
Radeon R9 M395X 125 Watts
Difference: 18 Watts (17%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 M395X is 9% faster than the Radeon RX 6500 XT in general, due to its higher bandwidth. (explain)

Radeon R9 M395X 160000 MB/sec
Radeon RX 6500 XT 147456 MB/sec
Difference: 12544 (9%)

Texel Rate

The Radeon RX 6500 XT is quite a bit (approximately 52%) more effective at AF than the Radeon R9 M395X. (explain)

Radeon RX 6500 XT 140800 Mtexels/sec
Radeon R9 M395X 92544 Mtexels/sec
Difference: 48256 (52%)

Pixel Rate

The Radeon RX 6500 XT should be quite a bit (approximately 204%) faster with regards to AA than the Radeon R9 M395X, and also will be able to handle higher resolutions while still performing well. (explain)

Radeon RX 6500 XT 70400 Mpixels/sec
Radeon R9 M395X 23136 Mpixels/sec
Difference: 47264 (204%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

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Radeon R9 M395X

Amazon.com

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Radeon RX 6500 XT

Amazon.com

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Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model Radeon R9 M395X Radeon RX 6500 XT
Manufacturer AMD AMD
Year 2015 January 2022
Code Name Tonga Navi 24 XT
Memory 4096 MB 4096 MB
Core Speed 723 MHz 2200 MHz
Memory Speed 5000 MHz 4500 GB/s
Power (Max TDP) 125 watts 107 watts
Bandwidth 160000 MB/sec 147456 MB/sec
Texel Rate 92544 Mtexels/sec 140800 Mtexels/sec
Pixel Rate 23136 Mpixels/sec 70400 Mpixels/sec
Unified Shaders 2048 1024
Texture Mapping Units 128 64
Render Output Units 32 32
Bus Type GDDR5 GDDR6
Bus Width 256-bit 64-bit
Fab Process 28 nm 6 nm
Transistors (Unknown) million 5400 million
Bus PCIe 3.0 x16 PCIe 4.0 x16
DirectX Version DirectX 12 DirectX 12
OpenGL Version OpenGL 4.3 OpenGL 4.6

Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in MB per second) that can be transported over the external memory interface within a second. The number is worked out by multiplying the card's bus width by its memory speed. In the case of DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

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Radeon R9 M395X

Amazon.com

Check prices at:

Radeon RX 6500 XT

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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