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Radeon R9 295X2 vs Radeon RX 6650 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 works at a speed of 1250 MHz on this particular card. It features 2816 SPUs as well as 176 Texture Address Units and 64 ROPs.

Compare that to the Radeon RX 6650 XT, which comes with a clock speed of 2055 MHz and a GDDR6 memory frequency of 2190 MHz. It also makes use of a 128-bit memory bus, and makes use of a 7 nm design. It is made up of 2048 SPUs, 128 TAUs, and 64 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6650 XT 176 Watts
Radeon R9 295X2 500 Watts
Difference: 324 Watts (184%)

Memory Bandwidth

As far as performance goes, the Radeon R9 295X2 should in theory be much better than the Radeon RX 6650 XT in general. (explain)

Radeon R9 295X2 640000 MB/sec
Radeon RX 6650 XT 287072 MB/sec
Difference: 352928 (123%)

Texel Rate

The Radeon R9 295X2 is quite a bit (more or less 36%) better at AF than the Radeon RX 6650 XT. (explain)

Radeon R9 295X2 358336 Mtexels/sec
Radeon RX 6650 XT 263040 Mtexels/sec
Difference: 95296 (36%)

Pixel Rate

If using a high resolution is important to you, then the Radeon RX 6650 XT is the winner, though only just barely. (explain)

Radeon RX 6650 XT 131520 Mpixels/sec
Radeon R9 295X2 130304 Mpixels/sec
Difference: 1216 (1%)

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

Check prices at:

Radeon RX 6650 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.

Specifications

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Model Radeon R9 295X2 Radeon RX 6650 XT
Manufacturer AMD AMD
Year April 2014 May 2022
Code Name Vesuvius Navi 23
Memory 4096 MB (x2) 8192 MB
Core Speed 1018 MHz (x2) 2055 MHz
Memory Speed 5000 MHz (x2) 4380 GB/s
Power (Max TDP) 500 watts 176 watts
Bandwidth 640000 MB/sec 287072 MB/sec
Texel Rate 358336 Mtexels/sec 263040 Mtexels/sec
Pixel Rate 130304 Mpixels/sec 131520 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 max amount of data (in units of megabytes per second) that can be transported over the external memory interface in a second. It's worked out by multiplying the interface width by the speed of its memory. If the card has DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated 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 drawing the pixels (image) on the screen. The actual pixel output 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 maximum fill rate.

Display Prices

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Radeon R9 295X2

Amazon.com

Check prices at:

Radeon RX 6650 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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