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GeForce GT 315 vs Radeon R9 M375X

Intro

The GeForce GT 315 makes use of a 40 nm design. nVidia has clocked the core frequency at 625 MHz. The DDR3 RAM works at a speed of 790 MHz on this particular card. It features 48 SPUs as well as 16 Texture Address Units and 8 ROPs.

Compare all of that to the Radeon R9 M375X, which features GPU clock speed of 1015 MHz, and 4096 MB of GDDR5 RAM set to run at 1125 MHz through a 128-bit bus. It also is made up of 640 SPUs, 40 TAUs, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon R9 M375X will be 185% quicker than the GeForce GT 315 in general, because of its greater bandwidth. (explain)

Radeon R9 M375X 72000 MB/sec
GeForce GT 315 25280 MB/sec
Difference: 46720 (185%)

Texel Rate

The Radeon R9 M375X is quite a bit (approximately 306%) better at AF than the GeForce GT 315. (explain)

Radeon R9 M375X 40600 Mtexels/sec
GeForce GT 315 10000 Mtexels/sec
Difference: 30600 (306%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon R9 M375X is the winner, by a large margin. (explain)

Radeon R9 M375X 16240 Mpixels/sec
GeForce GT 315 5000 Mpixels/sec
Difference: 11240 (225%)

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 GT 315

Amazon.com

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Radeon R9 M375X

Amazon.com

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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 GT 315 Radeon R9 M375X
Manufacturer nVidia AMD
Year November 2009 2015
Code Name GT216 Cape Verde
Memory 512 MB 4096 MB
Core Speed 625 MHz 1015 MHz
Memory Speed 1580 MHz 4500 MHz
Power (Max TDP) 52 watts (Unknown) watts
Bandwidth 25280 MB/sec 72000 MB/sec
Texel Rate 10000 Mtexels/sec 40600 Mtexels/sec
Pixel Rate 5000 Mpixels/sec 16240 Mpixels/sec
Unified Shaders 48 640
Texture Mapping Units 16 40
Render Output Units 8 16
Bus Type DDR3 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 486 million (Unknown) million
Bus PCIe 2.0 PCIe 3.0 x16
DirectX Version DirectX 10.1 DirectX 12
OpenGL Version OpenGL 3.2 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the max amount of information (measured in MB per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the interface width by its memory clock speed. If it uses DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the card will be at 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 its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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GeForce GT 315

Amazon.com

Check prices at:

Radeon R9 M375X

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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