GeForce GT 640 DDR3 vs GeForce GTX 1050 Ti

Intro

Compare all that to the GeForce GTX 1050 Ti, which comes with a core clock speed of 1290 MHz and a GDDR5 memory speed of 1750 MHz. It also makes use of a 128-bit bus, and makes use of a 14 nm design. It is made up of 768 SPUs, 48 TAUs, and 32 ROPs.

Display Graphs

Hide Graphs

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 Ti		7734 points
GeForce GT 640 DDR3		1560 points
	Difference: 6174 (396%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

The GeForce GTX 1050 Ti should theoretically perform quite a bit faster than the GeForce GT 640 DDR3 in general. (explain)

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

Texel Rate

The GeForce GTX 1050 Ti is a lot (approximately 115%) better at anisotropic filtering than the GeForce GT 640 DDR3. (explain)

GeForce GTX 1050 Ti		61920 Mtexels/sec
GeForce GT 640 DDR3		28800 Mtexels/sec
	Difference: 33120 (115%)

Pixel Rate

The GeForce GTX 1050 Ti is quite a bit (about 187%) better at full screen anti-aliasing than the GeForce GT 640 DDR3, and also should be able to handle higher screen resolutions while still performing well. (explain)

GeForce GTX 1050 Ti		41280 Mpixels/sec
GeForce GT 640 DDR3		14400 Mpixels/sec
	Difference: 26880 (187%)

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 max amount of data (counted in megabytes per second) that can be moved over the external memory interface in a second. It's worked out by multiplying the interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR 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 texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at 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 card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.