GeForce GTX 970 vs Radeon HD 7790

Intro

Compare those specifications to the Radeon HD 7790, which has a core clock frequency of 1000 MHz and a GDDR5 memory frequency of 1500 MHz. It also makes use of a 128-bit memory bus, and uses a 28 nm design. It features 896 SPUs, 56 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

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 970		10867 points
Radeon HD 7790		4330 points
	Difference: 6537 (151%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7790		85 Watts
GeForce GTX 970		145 Watts
	Difference: 60 Watts (71%)

Memory Bandwidth

Performance-wise, the GeForce GTX 970 should in theory be a lot better than the Radeon HD 7790 in general. (explain)

GeForce GTX 970		224000 MB/sec
Radeon HD 7790		96000 MB/sec
	Difference: 128000 (133%)

Texel Rate

The GeForce GTX 970 is much (about 95%) more effective at AF than the Radeon HD 7790. (explain)

GeForce GTX 970		109200 Mtexels/sec
Radeon HD 7790		56000 Mtexels/sec
	Difference: 53200 (95%)

Pixel Rate

The GeForce GTX 970 is much (more or less 320%) better at AA than the Radeon HD 7790, and also should be able to handle higher resolutions without losing too much performance. (explain)

GeForce GTX 970		67200 Mpixels/sec
Radeon HD 7790		16000 Mpixels/sec
	Difference: 51200 (320%)

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 largest amount of data (measured in megabytes per second) that can be moved across the external memory interface in one second. It is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, 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 amount of texture map elements (texels) that are applied per second. This is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better 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 number of pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.