GeForce GTX 285 1GB vs Radeon R7 250

Intro

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

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250		65 Watts
GeForce GTX 285 1GB		204 Watts
	Difference: 139 Watts (214%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 285 1GB should theoretically be quite a bit superior to the Radeon R7 250 overall. (explain)

GeForce GTX 285 1GB		158976 MB/sec
Radeon R7 250		73600 MB/sec
	Difference: 85376 (116%)

Texel Rate

The GeForce GTX 285 1GB will be a lot (about 116%) faster with regards to anisotropic filtering than the Radeon R7 250. (explain)

GeForce GTX 285 1GB		51840 Mtexels/sec
Radeon R7 250		24000 Mtexels/sec
	Difference: 27840 (116%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 285 1GB is the winner, by a large margin. (explain)

GeForce GTX 285 1GB		20736 Mpixels/sec
Radeon R7 250		8000 Mpixels/sec
	Difference: 12736 (159%)

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 megabytes per second) that can be transferred over the external memory interface within a second. It is worked out by multiplying the interface width by its memory clock speed. If the card has DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's 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 texture map elements (texels) that are processed per second. This is worked out by multiplying the total texture units 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 maximum amount of pixels the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill 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 potential to get to the maximum fill rate.