GeForce GT 640 DDR3 vs Radeon RX 5600 XT

Intro

Compare those specs to the Radeon RX 5600 XT, which uses a 7 nm design. AMD has clocked the core speed at 1375 MHz. The GDDR6 RAM works at a frequency of 1500 MHz on this specific model. It features 2304 SPUs along with 144 Texture Address Units and 64 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 640 DDR3		65 Watts
Radeon RX 5600 XT		160 Watts
	Difference: 95 Watts (146%)

Memory Bandwidth

In theory, the Radeon RX 5600 XT is 503% quicker than the GeForce GT 640 DDR3 overall, because of its higher data rate. (explain)

Radeon RX 5600 XT		344064 MB/sec
GeForce GT 640 DDR3		57024 MB/sec
	Difference: 287040 (503%)

Texel Rate

The Radeon RX 5600 XT is much (approximately 588%) better at AF than the GeForce GT 640 DDR3. (explain)

Radeon RX 5600 XT		198000 Mtexels/sec
GeForce GT 640 DDR3		28800 Mtexels/sec
	Difference: 169200 (588%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 5600 XT is a better choice, and very much so. (explain)

Radeon RX 5600 XT		88000 Mpixels/sec
GeForce GT 640 DDR3		14400 Mpixels/sec
	Difference: 73600 (511%)

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 (in units of megabytes per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 amount of texture map elements (texels) that are processed in one second. This is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core 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 fill rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.