GeForce GT 640 DDR3 vs GeForce GTX 1060

Intro

Compare that to the GeForce GTX 1060, which comes with core speeds of 1506 MHz on the GPU, and 2000 MHz on the 6144 MB of GDDR5 memory. It features 1280 SPUs along with 80 TAUs and 48 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 1060		12359 points
GeForce GT 640 DDR3		1560 points
	Difference: 10799 (692%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 640 DDR3		65 Watts
GeForce GTX 1060		120 Watts
	Difference: 55 Watts (85%)

Memory Bandwidth

In theory, the GeForce GTX 1060 should perform much faster than the GeForce GT 640 DDR3 overall. (explain)

GeForce GTX 1060		196608 MB/sec
GeForce GT 640 DDR3		57024 MB/sec
	Difference: 139584 (245%)

Texel Rate

The GeForce GTX 1060 is much (about 318%) more effective at texture filtering than the GeForce GT 640 DDR3. (explain)

GeForce GTX 1060		120480 Mtexels/sec
GeForce GT 640 DDR3		28800 Mtexels/sec
	Difference: 91680 (318%)

Pixel Rate

The GeForce GTX 1060 should be quite a bit (more or less 402%) faster with regards to full screen anti-aliasing than the GeForce GT 640 DDR3, and also capable of handling higher resolutions better. (explain)

GeForce GTX 1060		72288 Mpixels/sec
GeForce GT 640 DDR3		14400 Mpixels/sec
	Difference: 57888 (402%)

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 transported past the external memory interface in a second. It is calculated by multiplying the bus width by the speed of its memory. If it uses DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This number 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 applied in a second.

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