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Radeon R9 295X2 vs Radeon RX 6600 XT

Intro

The Radeon R9 295X2 makes use of a 28 nm design. AMD has clocked the core frequency at 1018 MHz. The GDDR5 memory is set to run at a frequency of 1250 MHz on this particular card. It features 2816 SPUs along with 176 TAUs and 64 ROPs.

Compare all that to the Radeon RX 6600 XT, which comes with a GPU core clock speed of 1968 MHz, and 8192 MB of GDDR6 RAM set to run at 2000 MHz through a 128-bit bus. It also is made up of 2048 SPUs, 128 TAUs, and 64 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6600 XT 160 Watts
Radeon R9 295X2 500 Watts
Difference: 340 Watts (213%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 295X2 should be a lot faster than the Radeon RX 6600 XT overall. (explain)

Radeon R9 295X2 640000 MB/sec
Radeon RX 6600 XT 262144 MB/sec
Difference: 377856 (144%)

Texel Rate

The Radeon R9 295X2 should be quite a bit (more or less 42%) more effective at AF than the Radeon RX 6600 XT. (explain)

Radeon R9 295X2 358336 Mtexels/sec
Radeon RX 6600 XT 251904 Mtexels/sec
Difference: 106432 (42%)

Pixel Rate

The Radeon R9 295X2 is just a bit (approximately 3%) better at full screen anti-aliasing than the Radeon RX 6600 XT, and able to handle higher screen resolutions without losing too much performance. (explain)

Radeon R9 295X2 130304 Mpixels/sec
Radeon RX 6600 XT 125952 Mpixels/sec
Difference: 4352 (3%)

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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Radeon R9 295X2

Amazon.com

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Radeon RX 6600 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 295X2 Radeon RX 6600 XT
Manufacturer AMD AMD
Year April 2014 August 2021
Code Name Vesuvius Navi 23 XT
Memory 4096 MB (x2) 8192 MB
Core Speed 1018 MHz (x2) 1968 MHz
Memory Speed 5000 MHz (x2) 4000 GB/s
Power (Max TDP) 500 watts 160 watts
Bandwidth 640000 MB/sec 262144 MB/sec
Texel Rate 358336 Mtexels/sec 251904 Mtexels/sec
Pixel Rate 130304 Mpixels/sec 125952 Mpixels/sec
Unified Shaders 2816 (x2) 2048
Texture Mapping Units 176 (x2) 128
Render Output Units 64 (x2) 64
Bus Type GDDR5 GDDR6
Bus Width 512-bit (x2) 128-bit
Fab Process 28 nm 7 nm
Transistors 6200 million 11060 million
Bus PCIe 3.0 x16 PCIe 4.0 x16
DirectX Version DirectX 11.2 DirectX 12
OpenGL Version OpenGL 4.3 OpenGL 4.6

Memory Bandwidth: Memory bandwidth is the maximum amount of data (measured in megabytes per second) that can be transported over the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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Radeon R9 295X2

Amazon.com

Check prices at:

Radeon RX 6600 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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