GeForce GT 640 DDR3 vs GeForce GTX 1050 Ti

Intro

Compare all that to the GeForce GTX 1050 Ti, which makes use of a 14 nm design. nVidia has clocked the core frequency at 1290 MHz. The GDDR5 memory runs at a frequency of 1750 MHz on this specific 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

Theoretically, the GeForce GTX 1050 Ti should be a lot faster than 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 a lot (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

The GeForce GTX 1050 Ti should be quite a bit (approximately 187%) better at full screen anti-aliasing than the GeForce GT 640 DDR3, and will be capable of handling higher screen resolutions without slowing down too much. (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 data (measured in megabytes per second) that can be moved across the external memory interface in a second. It's calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster 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 applied in one second. This figure is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.