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GeForce GTX 650 vs Radeon R9 M395X

Intro

The GeForce GTX 650 has a core clock frequency of 1058 MHz and a GDDR5 memory speed of 1250 MHz. It also features a 128-bit bus, and uses a 28 nm design. It is comprised of 384 SPUs, 32 Texture Address Units, and 16 Raster Operation Units.

Compare that to the Radeon R9 M395X, which features a clock speed of 723 MHz and a GDDR5 memory frequency of 1250 MHz. It also makes use of a 256-bit memory bus, and makes use of a 28 nm design. It is made up of 2048 SPUs, 128 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 64 Watts
Radeon R9 M395X 125 Watts
Difference: 61 Watts (95%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 M395X should be 100% quicker than the GeForce GTX 650 in general, due to its greater data rate. (explain)

Radeon R9 M395X 160000 MB/sec
GeForce GTX 650 80000 MB/sec
Difference: 80000 (100%)

Texel Rate

The Radeon R9 M395X should be a lot (approximately 173%) more effective at texture filtering than the GeForce GTX 650. (explain)

Radeon R9 M395X 92544 Mtexels/sec
GeForce GTX 650 33856 Mtexels/sec
Difference: 58688 (173%)

Pixel Rate

The Radeon R9 M395X is a lot (about 37%) more effective at FSAA than the GeForce GTX 650, and also able to handle higher screen resolutions while still performing well. (explain)

Radeon R9 M395X 23136 Mpixels/sec
GeForce GTX 650 16928 Mpixels/sec
Difference: 6208 (37%)

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 GTX 650

Amazon.com

Check prices at:

Radeon R9 M395X

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 GTX 650 Radeon R9 M395X
Manufacturer nVidia AMD
Year September 2012 2015
Code Name GK107 Tonga
Memory 1024 MB 4096 MB
Core Speed 1058 MHz 723 MHz
Memory Speed 5000 MHz 5000 MHz
Power (Max TDP) 64 watts 125 watts
Bandwidth 80000 MB/sec 160000 MB/sec
Texel Rate 33856 Mtexels/sec 92544 Mtexels/sec
Pixel Rate 16928 Mpixels/sec 23136 Mpixels/sec
Unified Shaders 384 2048
Texture Mapping Units 32 128
Render Output Units 16 32
Bus Type GDDR5 GDDR5
Bus Width 128-bit 256-bit
Fab Process 28 nm 28 nm
Transistors 1300 million (Unknown) million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 12
OpenGL Version OpenGL 4.3 OpenGL 4.3

Memory Bandwidth: Bandwidth is the largest amount of information (measured in MB per second) that can be transported past the external memory interface in one second. It is calculated by multiplying the interface width by its memory speed. If the card has DDR memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the 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 amount of texture map elements (texels) that are applied in one second. This is calculated by multiplying the total texture units by the core speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce GTX 650

Amazon.com

Check prices at:

Radeon R9 M395X

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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