GeForce GTX 950 vs Radeon HD 7790

Intro

Compare all of that to the Radeon HD 7790, which comes with a clock speed of 1000 MHz and a GDDR5 memory speed of 1500 MHz. It also makes use of a 128-bit bus, and makes use of a 28 nm design. It is made up of 896 SPUs, 56 TAUs, and 16 ROPs.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 950		6536 points
Radeon HD 7790		4330 points
	Difference: 2206 (51%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7790		85 Watts
GeForce GTX 950		90 Watts
	Difference: 5 Watts (6%)

Memory Bandwidth

The GeForce GTX 950, in theory, should perform a bit faster than the Radeon HD 7790 overall. (explain)

GeForce GTX 950		105728 MB/sec
Radeon HD 7790		96000 MB/sec
	Difference: 9728 (10%)

Texel Rate

The Radeon HD 7790 will be a small bit (approximately 14%) faster with regards to AF than the GeForce GTX 950. (explain)

Radeon HD 7790		56000 Mtexels/sec
GeForce GTX 950		49152 Mtexels/sec
	Difference: 6848 (14%)

Pixel Rate

The GeForce GTX 950 will be quite a bit (more or less 105%) more effective at FSAA than the Radeon HD 7790, and will be capable of handling higher screen resolutions while still performing well. (explain)

GeForce GTX 950		32768 Mpixels/sec
Radeon HD 7790		16000 Mpixels/sec
	Difference: 16768 (105%)

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 (measured in megabytes per second) that can be transported across the external memory interface in a second. It is worked out by multiplying the interface width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at 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 video card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated 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 lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.