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GeForce GT 320 vs Radeon R7 250

Intro

The GeForce GT 320 features a core clock frequency of 540 MHz and a GDDR3 memory speed of 790 MHz. It also uses a 128-bit memory bus, and uses a 40 nm design. It is made up of 72 SPUs, 24 Texture Address Units, and 8 Raster Operation Units.

Compare those specifications to the Radeon R7 250, which has GPU clock speed of 1000 MHz, and 1024 MB of GDDR5 memory set to run at 1150 MHz through a 128-bit bus. It also features 384 Stream Processors, 24 TAUs, and 8 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 320 43 Watts
Radeon R7 250 65 Watts
Difference: 22 Watts (51%)

Memory Bandwidth

In theory, the Radeon R7 250 should be 191% quicker than the GeForce GT 320 overall, due to its greater data rate. (explain)

Radeon R7 250 73600 MB/sec
GeForce GT 320 25280 MB/sec
Difference: 48320 (191%)

Texel Rate

The Radeon R7 250 should be a lot (approximately 85%) more effective at texture filtering than the GeForce GT 320. (explain)

Radeon R7 250 24000 Mtexels/sec
GeForce GT 320 12960 Mtexels/sec
Difference: 11040 (85%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R7 250 is a better choice, by far. (explain)

Radeon R7 250 8000 Mpixels/sec
GeForce GT 320 4320 Mpixels/sec
Difference: 3680 (85%)

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 320

Amazon.com

Check prices at:

Radeon R7 250

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 320 Radeon R7 250
Manufacturer nVidia AMD
Year February 2010 October 2013
Code Name GT215 Oland XT
Memory 1024 MB 1024 MB
Core Speed 540 MHz 1000 MHz
Memory Speed 1580 MHz 4600 MHz
Power (Max TDP) 43 watts 65 watts
Bandwidth 25280 MB/sec 73600 MB/sec
Texel Rate 12960 Mtexels/sec 24000 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 8000 Mpixels/sec
Unified Shaders 72 384
Texture Mapping Units 24 24
Render Output Units 8 8
Bus Type GDDR3 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 727 million 1040 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 10.1 DirectX 11.2
OpenGL Version OpenGL 3.3 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of information (measured in MB per second) that can be moved over the external memory interface in a second. The number is 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 it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could 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 colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, most notably 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

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GeForce GT 320

Amazon.com

Check prices at:

Radeon R7 250

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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