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GeForce RTX 3080 12 GB vs Radeon R9 M265X

Intro

The GeForce RTX 3080 12 GB comes with a GPU core speed of 1260 MHz, and the 12288 MB of GDDR6X memory runs at 1188 MHz through a 384-bit bus. It also features 8960 SPUs, 280 TAUs, and 112 ROPs.

Compare those specifications to the Radeon R9 M265X, which comes with a core clock speed of 575 MHz and a GDDR5 memory speed of 1125 MHz. It also makes use of a 128-bit bus, and uses a 28 nm design. It is comprised of 640 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the GeForce RTX 3080 12 GB should be quite a bit faster than the Radeon R9 M265X overall. (explain)

GeForce RTX 3080 12 GB 934298 MB/sec
Radeon R9 M265X 72000 MB/sec
Difference: 862298 (1198%)

Texel Rate

The GeForce RTX 3080 12 GB is much (approximately 1434%) faster with regards to AF than the Radeon R9 M265X. (explain)

GeForce RTX 3080 12 GB 352800 Mtexels/sec
Radeon R9 M265X 23000 Mtexels/sec
Difference: 329800 (1434%)

Pixel Rate

The GeForce RTX 3080 12 GB is a lot (about 1434%) more effective at anti-aliasing than the Radeon R9 M265X, and should be capable of handling higher screen resolutions while still performing well. (explain)

GeForce RTX 3080 12 GB 141120 Mpixels/sec
Radeon R9 M265X 9200 Mpixels/sec
Difference: 131920 (1434%)

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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GeForce RTX 3080 12 GB

Amazon.com

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Radeon R9 M265X

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 GeForce RTX 3080 12 GB Radeon R9 M265X
Manufacturer nVidia AMD
Year January 2022 May 1 2014
Code Name GA102-220-A1 Venus Pro
Memory 12288 MB 2048 MB
Core Speed 1260 MHz 575 MHz
Memory Speed 1188 GB/s 4500 MHz
Power (Max TDP) 350 watts (Unknown) watts
Bandwidth 934298 MB/sec 72000 MB/sec
Texel Rate 352800 Mtexels/sec 23000 Mtexels/sec
Pixel Rate 141120 Mpixels/sec 9200 Mpixels/sec
Unified Shaders 8960 640
Texture Mapping Units 280 40
Render Output Units 112 16
Bus Type GDDR6X GDDR5
Bus Width 384-bit 128-bit
Fab Process 8 nm 28 nm
Transistors 28300 million (Unknown) million
Bus PCIe 4.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12 DirectX 11.2
OpenGL Version OpenGL 4.6 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the largest amount of data (counted in megabytes per second) that can be moved across the external memory interface within a second. It is calculated by multiplying the card's bus width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 once 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 AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the graphics 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 number of pixels the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

GeForce RTX 3080 12 GB

Amazon.com

Check prices at:

Radeon R9 M265X

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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