GeForce GTX 650 Ti 2GB vs Radeon R7 250

Intro

Compare those specifications to the Radeon R7 250, which features a clock speed of 1000 MHz and a GDDR5 memory speed of 1150 MHz. It also makes use of a 128-bit bus, and uses a 28 nm design. It features 384 SPUs, 24 TAUs, and 8 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250		65 Watts
GeForce GTX 650 Ti 2GB		110 Watts
	Difference: 45 Watts (69%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 650 Ti 2GB is 17% quicker than the Radeon R7 250 in general, due to its higher data rate. (explain)

GeForce GTX 650 Ti 2GB		86400 MB/sec
Radeon R7 250		73600 MB/sec
	Difference: 12800 (17%)

Texel Rate

The GeForce GTX 650 Ti 2GB is quite a bit (more or less 147%) faster with regards to texture filtering than the Radeon R7 250. (explain)

GeForce GTX 650 Ti 2GB		59392 Mtexels/sec
Radeon R7 250		24000 Mtexels/sec
	Difference: 35392 (147%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 650 Ti 2GB is a better choice, by a large margin. (explain)

GeForce GTX 650 Ti 2GB		14848 Mpixels/sec
Radeon R7 250		8000 Mpixels/sec
	Difference: 6848 (86%)

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 information (counted in MB per second) that can be transferred past the external memory interface in a second. It is worked out by multiplying the bus width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics 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 the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.