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GeForce GT 315 vs Radeon R7 250X

Intro

The GeForce GT 315 comes with a core clock speed of 625 MHz and a DDR3 memory frequency of 790 MHz. It also features a 128-bit bus, and makes use of a 40 nm design. It features 48 SPUs, 16 Texture Address Units, and 8 ROPs.

Compare those specifications to the Radeon R7 250X, which features GPU core speed of 1000 MHz, and 1024 MB of GDDR5 RAM set to run at 1125 MHz through a 128-bit bus. It also is comprised of 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

As far as performance goes, the Radeon R7 250X should in theory be much better than the GeForce GT 315 in general. (explain)

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

Texel Rate

The Radeon R7 250X will be a lot (more or less 300%) faster with regards to texture filtering than the GeForce GT 315. (explain)

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

Pixel Rate

If using a high resolution is important to you, then the Radeon R7 250X is a better choice, by a large margin. (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 maximum amount of data (counted in megabytes per second) that can be transferred over the external memory interface in a second. It's calculated by multiplying the interface width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster 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 in one second. This is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to 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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