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GeForce GT 315 vs Radeon R7 250X

Intro

The GeForce GT 315 comes with a GPU clock speed of 625 MHz, and the 512 MB of DDR3 memory runs at 790 MHz through a 128-bit bus. It also is comprised of 48 Stream Processors, 16 TAUs, and 8 ROPs.

Compare that to the Radeon R7 250X, which features a GPU core clock speed of 1000 MHz, and 1024 MB of GDDR5 memory running at 1125 MHz through a 128-bit bus. It also features 640 Stream Processors, 40 Texture Address Units, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 315 52 Watts
Radeon R7 250X 95 Watts
Difference: 43 Watts (83%)

Memory Bandwidth

Performance-wise, the Radeon R7 250X should theoretically be much superior to the GeForce GT 315 overall. (explain)

Radeon R7 250X 72000 MB/sec
GeForce GT 315 25280 MB/sec
Difference: 46720 (185%)

Texel Rate

The Radeon R7 250X will be much (more or less 300%) more effective at AF than the GeForce GT 315. (explain)

Radeon R7 250X 40000 Mtexels/sec
GeForce GT 315 10000 Mtexels/sec
Difference: 30000 (300%)

Pixel Rate

The Radeon R7 250X will be quite a bit (approximately 220%) faster with regards to AA than the GeForce GT 315, and will be able to handle higher resolutions more effectively. (explain)

Radeon R7 250X 16000 Mpixels/sec
GeForce GT 315 5000 Mpixels/sec
Difference: 11000 (220%)

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

Check prices at:

Radeon R7 250X

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 GT 315 Radeon R7 250X
Manufacturer nVidia AMD
Year November 2009 February 2014
Code Name GT216 Cape Verde XT
Memory 512 MB 1024 MB
Core Speed 625 MHz 1000 MHz
Memory Speed 1580 MHz 4500 MHz
Power (Max TDP) 52 watts 95 watts
Bandwidth 25280 MB/sec 72000 MB/sec
Texel Rate 10000 Mtexels/sec 40000 Mtexels/sec
Pixel Rate 5000 Mpixels/sec 16000 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 1500 million
Bus PCIe 2.0 PCIe 3.0 x16
DirectX Version DirectX 10.1 DirectX 11.2
OpenGL Version OpenGL 3.2 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the largest amount of data (counted in megabytes per second) that can be moved across the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory speed. If it uses DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, 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 are processed in one second. This number is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, most notably 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 GT 315

Amazon.com

Check prices at:

Radeon R7 250X

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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