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GeForce GTX 965M vs Radeon R9 M270X

Intro

The GeForce GTX 965M has clock speeds of 944 MHz on the GPU, and 1000 MHz on the 2048 MB of GDDR5 memory. It features 1024 SPUs along with 64 TAUs and 32 ROPs.

Compare those specs to the Radeon R9 M270X, which has a clock speed of 725 MHz and a GDDR5 memory frequency of 1125 MHz. It also features a 128-bit memory bus, and makes use of a 28 nm design. It is made up of 640 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the Radeon R9 M270X should perform a bit faster than the GeForce GTX 965M in general. (explain)

Radeon R9 M270X 72000 MB/sec
GeForce GTX 965M 64000 MB/sec
Difference: 8000 (13%)

Texel Rate

The GeForce GTX 965M will be a lot (more or less 108%) more effective at anisotropic filtering than the Radeon R9 M270X. (explain)

GeForce GTX 965M 60416 Mtexels/sec
Radeon R9 M270X 29000 Mtexels/sec
Difference: 31416 (108%)

Pixel Rate

The GeForce GTX 965M should be a lot (about 160%) faster with regards to AA than the Radeon R9 M270X, and also should be capable of handling higher resolutions without losing too much performance. (explain)

GeForce GTX 965M 30208 Mpixels/sec
Radeon R9 M270X 11600 Mpixels/sec
Difference: 18608 (160%)

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 965M

Amazon.com

Check prices at:

Radeon R9 M270X

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 965M Radeon R9 M270X
Manufacturer nVidia AMD
Year January 5 2015 May 1 2014
Code Name GM204 Venus XT
Memory 2048 MB 2048 MB
Core Speed 944 MHz 725 MHz
Memory Speed 4000 MHz 4500 MHz
Power (Max TDP) 60 watts (Unknown) watts
Bandwidth 64000 MB/sec 72000 MB/sec
Texel Rate 60416 Mtexels/sec 29000 Mtexels/sec
Pixel Rate 30208 Mpixels/sec 11600 Mpixels/sec
Unified Shaders 1024 640
Texture Mapping Units 64 40
Render Output Units 32 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 28 nm 28 nm
Transistors (Unknown) million (Unknown) million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12 DirectX 11.2
OpenGL Version OpenGL 4.5 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the max amount of data (in units of MB per second) that can be transferred past the external memory interface in a second. It's worked out by multiplying the bus width by its memory speed. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, 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 amount of 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 in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 965M

Amazon.com

Check prices at:

Radeon R9 M270X

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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