GeForce GT 640 DDR3 vs GeForce GTX 1050

Intro

Compare those specifications to the GeForce GTX 1050, which has GPU core speed of 1354 MHz, and 2048 MB of GDDR5 RAM running at 1750 MHz through a 128-bit bus. It also is made up of 640 Stream Processors, 40 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 1050		6657 points
GeForce GT 640 DDR3		1560 points
	Difference: 5097 (327%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 640 DDR3		65 Watts
GeForce GTX 1050		75 Watts
	Difference: 10 Watts (15%)

Memory Bandwidth

The GeForce GTX 1050, in theory, should perform much faster than the GeForce GT 640 DDR3 overall. (explain)

GeForce GTX 1050		114688 MB/sec
GeForce GT 640 DDR3		57024 MB/sec
	Difference: 57664 (101%)

Texel Rate

The GeForce GTX 1050 will be quite a bit (approximately 88%) more effective at AF than the GeForce GT 640 DDR3. (explain)

GeForce GTX 1050		54160 Mtexels/sec
GeForce GT 640 DDR3		28800 Mtexels/sec
	Difference: 25360 (88%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 1050 is superior to the GeForce GT 640 DDR3, and very much so. (explain)

GeForce GTX 1050		43328 Mpixels/sec
GeForce GT 640 DDR3		14400 Mpixels/sec
	Difference: 28928 (201%)

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: Bandwidth is the largest amount of information (counted in megabytes per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the interface width by its memory clock speed. If it uses DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, 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 applied per second. This is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.