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GeForce GTX 650 Ti 2GB vs Radeon R9 M275X

Intro

The GeForce GTX 650 Ti 2GB comes with a GPU clock speed of 928 MHz, and the 2048 MB of GDDR5 memory is set to run at 1350 MHz through a 128-bit bus. It also features 768 SPUs, 64 TAUs, and 16 ROPs.

Compare all of that to the Radeon R9 M275X, which comes with core clock speeds of 900 MHz on the GPU, and 1125 MHz on the 2048 MB of GDDR5 RAM. It features 640 SPUs as well as 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M275X 50 Watts
GeForce GTX 650 Ti 2GB 110 Watts
Difference: 60 Watts (120%)

Memory Bandwidth

The GeForce GTX 650 Ti 2GB, in theory, should perform a small bit faster than the Radeon R9 M275X in general. (explain)

GeForce GTX 650 Ti 2GB 86400 MB/sec
Radeon R9 M275X 72000 MB/sec
Difference: 14400 (20%)

Texel Rate

The GeForce GTX 650 Ti 2GB will be a lot (approximately 65%) faster with regards to AF than the Radeon R9 M275X. (explain)

GeForce GTX 650 Ti 2GB 59392 Mtexels/sec
Radeon R9 M275X 36000 Mtexels/sec
Difference: 23392 (65%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 650 Ti 2GB is the winner, though only just barely. (explain)

GeForce GTX 650 Ti 2GB 14848 Mpixels/sec
Radeon R9 M275X 14400 Mpixels/sec
Difference: 448 (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.

Price Comparison

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GeForce GTX 650 Ti 2GB

Amazon.com

Check prices at:

Radeon R9 M275X

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 Ti 2GB Radeon R9 M275X
Manufacturer nVidia AMD
Year October 2012 May 1 2014
Code Name GK106 Venus XTX
Memory 2048 MB 2048 MB
Core Speed 928 MHz 900 MHz
Memory Speed 5400 MHz 4500 MHz
Power (Max TDP) 110 watts 50 watts
Bandwidth 86400 MB/sec 72000 MB/sec
Texel Rate 59392 Mtexels/sec 36000 Mtexels/sec
Pixel Rate 14848 Mpixels/sec 14400 Mpixels/sec
Unified Shaders 768 640
Texture Mapping Units 64 40
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 28 nm 28 nm
Transistors 2540 million (Unknown) million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 11.2
OpenGL Version OpenGL 4.3 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the maximum amount of data (in units of MB per second) that can be transported across the external memory interface in one second. It's calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

GeForce GTX 650 Ti 2GB

Amazon.com

Check prices at:

Radeon R9 M275X

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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