GeForce GTX 1050 vs Radeon HD 4890 2GB

Intro

Compare those specifications to the Radeon HD 4890 2GB, which comes with a clock frequency of 1000 MHz and a GDDR5 memory frequency of 975 MHz. It also features a 256-bit bus, and uses a 55 nm design. It is comprised of 800(160x5) SPUs, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1050		75 Watts
Radeon HD 4890 2GB		190 Watts
	Difference: 115 Watts (153%)

Memory Bandwidth

As far as performance goes, the Radeon HD 4890 2GB should in theory be a bit better than the GeForce GTX 1050 in general. (explain)

Radeon HD 4890 2GB		124800 MB/sec
GeForce GTX 1050		114688 MB/sec
	Difference: 10112 (9%)

Texel Rate

The GeForce GTX 1050 is a lot (approximately 35%) more effective at texture filtering than the Radeon HD 4890 2GB. (explain)

GeForce GTX 1050		54160 Mtexels/sec
Radeon HD 4890 2GB		40000 Mtexels/sec
	Difference: 14160 (35%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 1050 is a better choice, by far. (explain)

GeForce GTX 1050		43328 Mpixels/sec
Radeon HD 4890 2GB		16000 Mpixels/sec
	Difference: 27328 (171%)

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 max amount of information (in units of MB per second) that can be transferred past the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.