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GeForce GTX 965M vs Radeon R9 M380

Intro

The GeForce GTX 965M features a GPU core clock speed of 944 MHz, and the 2048 MB of GDDR5 RAM is set to run at 1000 MHz through a 128-bit bus. It also is comprised of 1024 SPUs, 64 Texture Address Units, and 32 Raster Operation Units.

Compare all that to the Radeon R9 M380, which comes with core speeds of 1000 MHz on the GPU, and 1500 MHz on the 4096 MB of GDDR5 RAM. It features 640 SPUs along with 40 TAUs and 16 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Radeon R9 M380 should in theory be quite a bit superior to the GeForce GTX 965M overall. (explain)

Radeon R9 M380 96000 MB/sec
GeForce GTX 965M 64000 MB/sec
Difference: 32000 (50%)

Texel Rate

The GeForce GTX 965M should be a lot (about 51%) better at AF than the Radeon R9 M380. (explain)

GeForce GTX 965M 60416 Mtexels/sec
Radeon R9 M380 40000 Mtexels/sec
Difference: 20416 (51%)

Pixel Rate

The GeForce GTX 965M should be much (about 89%) faster with regards to full screen anti-aliasing than the Radeon R9 M380, and should be capable of handling higher screen resolutions while still performing well. (explain)

GeForce GTX 965M 30208 Mpixels/sec
Radeon R9 M380 16000 Mpixels/sec
Difference: 14208 (89%)

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

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Radeon R9 M380

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 M380
Manufacturer nVidia AMD
Year January 5 2015 2015
Code Name GM204 Cape Verde
Memory 2048 MB 4096 MB
Core Speed 944 MHz 1000 MHz
Memory Speed 4000 MHz 6000 MHz
Power (Max TDP) 60 watts (Unknown) watts
Bandwidth 64000 MB/sec 96000 MB/sec
Texel Rate 60416 Mtexels/sec 40000 Mtexels/sec
Pixel Rate 30208 Mpixels/sec 16000 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 12
OpenGL Version OpenGL 4.5 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the largest amount of information (counted in MB per second) that can be transferred across the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 once 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 high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce GTX 965M

Amazon.com

Check prices at:

Radeon R9 M380

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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