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GeForce RTX 4080 vs Radeon R9 295X2

Intro

The GeForce RTX 4080 makes use of a 4 nm design. nVidia has clocked the core speed at 2205 MHz. The GDDR6X memory runs at a speed of 1400 MHz on this model. It features 9728 SPUs as well as 304 Texture Address Units and 112 ROPs.

Compare all of that to the Radeon R9 295X2, which has GPU clock speed of 1018 MHz, and 4096 MB of GDDR5 memory running at 1250 MHz through a 512-bit bus. It also is comprised of 2816 Stream Processors, 176 Texture Address Units, and 64 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 4080 320 Watts
Radeon R9 295X2 500 Watts
Difference: 180 Watts (56%)

Memory Bandwidth

In theory, the GeForce RTX 4080 will be 15% quicker than the Radeon R9 295X2 overall, due to its higher data rate. (explain)

GeForce RTX 4080 734003 MB/sec
Radeon R9 295X2 640000 MB/sec
Difference: 94003 (15%)

Texel Rate

The GeForce RTX 4080 will be quite a bit (more or less 87%) better at texture filtering than the Radeon R9 295X2. (explain)

GeForce RTX 4080 670320 Mtexels/sec
Radeon R9 295X2 358336 Mtexels/sec
Difference: 311984 (87%)

Pixel Rate

The GeForce RTX 4080 is much (more or less 90%) better at full screen anti-aliasing than the Radeon R9 295X2, and also capable of handling higher screen resolutions while still performing well. (explain)

GeForce RTX 4080 246960 Mpixels/sec
Radeon R9 295X2 130304 Mpixels/sec
Difference: 116656 (90%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

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GeForce RTX 4080

Amazon.com

Check prices at:

Radeon R9 295X2

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.

Specifications

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Model GeForce RTX 4080 Radeon R9 295X2
Manufacturer nVidia AMD
Year November 2022 April 2014
Code Name AD103-300-A1 Vesuvius
Memory 16384 MB 4096 MB (x2)
Core Speed 2205 MHz 1018 MHz (x2)
Memory Speed 1400 GB/s 5000 MHz (x2)
Power (Max TDP) 320 watts 500 watts
Bandwidth 734003 MB/sec 640000 MB/sec
Texel Rate 670320 Mtexels/sec 358336 Mtexels/sec
Pixel Rate 246960 Mpixels/sec 130304 Mpixels/sec
Unified Shaders 9728 2816 (x2)
Texture Mapping Units 304 176 (x2)
Render Output Units 112 64 (x2)
Bus Type GDDR6X GDDR5
Bus Width 256-bit 512-bit (x2)
Fab Process 4 nm 28 nm
Transistors 45900 million 6200 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: Bandwidth is the max amount of information (in units of MB per second) that can be transferred over the external memory interface within a second. It's worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the video 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 that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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GeForce RTX 4080

Amazon.com

Check prices at:

Radeon R9 295X2

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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