GeForce GT 640 DDR3 vs GeForce GTX 1050 Ti

Intro

Compare those specs to the GeForce GTX 1050 Ti, which uses a 14 nm design. nVidia has clocked the core speed at 1290 MHz. The GDDR5 memory is set to run at a frequency of 1750 MHz on this card. It features 768 SPUs along with 48 TAUs and 32 Rasterization Operator Units.

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

As far as performance goes, the GeForce GTX 1050 Ti should theoretically be much superior to the GeForce GT 640 DDR3 overall. (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 much (about 115%) more effective 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

If using lots of anti-aliasing is important to you, then the GeForce GTX 1050 Ti is superior to the GeForce GT 640 DDR3, and very much so. (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: Bandwidth is the maximum amount of information (measured in MB per second) that can be transferred over the external memory interface in a second. The number is worked out by multiplying the interface width by the speed of its memory. In the case of DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, 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 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 the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.