GeForce GTS 250 512MB vs Radeon R7 250

Intro

Compare those specifications to the Radeon R7 250, which has core clock speeds of 1000 MHz on the GPU, and 1150 MHz on the 1024 MB of GDDR5 memory. It features 384 SPUs along with 24 Texture Address Units and 8 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250		65 Watts
GeForce GTS 250 512MB		145 Watts
	Difference: 80 Watts (123%)

Memory Bandwidth

As far as performance goes, the Radeon R7 250 should theoretically be just a bit superior to the GeForce GTS 250 512MB overall. (explain)

Radeon R7 250		73600 MB/sec
GeForce GTS 250 512MB		70400 MB/sec
	Difference: 3200 (5%)

Texel Rate

The GeForce GTS 250 512MB will be a lot (more or less 97%) more effective at texture filtering than the Radeon R7 250. (explain)

GeForce GTS 250 512MB		47232 Mtexels/sec
Radeon R7 250		24000 Mtexels/sec
	Difference: 23232 (97%)

Pixel Rate

The GeForce GTS 250 512MB will be a lot (more or less 48%) more effective at full screen anti-aliasing than the Radeon R7 250, and capable of handling higher resolutions without losing too much performance. (explain)

GeForce GTS 250 512MB		11808 Mpixels/sec
Radeon R7 250		8000 Mpixels/sec
	Difference: 3808 (48%)

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 maximum amount of data (in units of MB per second) that can be transferred over the external memory interface in one second. The number is worked out by multiplying the interface width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster 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 texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the graphics 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 the video card can possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.