GeForce GT 310 vs GeForce GTS 450 1GB

Intro

Compare those specifications to the GeForce GTS 450 1GB, which features GPU core speed of 783 MHz, and 1024 MB of GDDR5 memory running at 902 MHz through a 128-bit bus. It also is comprised of 192 Stream Processors, 32 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 310		31 Watts
GeForce GTS 450 1GB		106 Watts
	Difference: 75 Watts (242%)

Memory Bandwidth

Performance-wise, the GeForce GTS 450 1GB should theoretically be a lot superior to the GeForce GT 310 overall. (explain)

GeForce GTS 450 1GB		57728 MB/sec
GeForce GT 310		16000 MB/sec
	Difference: 41728 (261%)

Texel Rate

The GeForce GTS 450 1GB is quite a bit (about 432%) better at AF than the GeForce GT 310. (explain)

GeForce GTS 450 1GB		25056 Mtexels/sec
GeForce GT 310		4712 Mtexels/sec
	Difference: 20344 (432%)

Pixel Rate

The GeForce GTS 450 1GB should be quite a bit (more or less 432%) faster with regards to full screen anti-aliasing than the GeForce GT 310, and also will be able to handle higher resolutions while still performing well. (explain)

GeForce GTS 450 1GB		12528 Mpixels/sec
GeForce GT 310		2356 Mpixels/sec
	Difference: 10172 (432%)

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

Specifications

Memory Bandwidth: Memory bandwidth is the largest amount of information (in units of megabytes per second) that can be transferred past the external memory interface in one second. It is worked out by multiplying the interface width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total number of 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.