GeForce GTX 570 vs Radeon HD 6790

Intro

Compare those specifications to the Radeon HD 6790, which comes with a GPU core clock speed of 840 MHz, and 1024 MB of GDDR5 memory set to run at 1050 MHz through a 256-bit bus. It also features 800 Stream Processors, 40 Texture Address Units, 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 570		4387 points
Radeon HD 6790		2150 points
	Difference: 2237 (104%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6790		150 Watts
GeForce GTX 570		219 Watts
	Difference: 69 Watts (46%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 570 should be 13% quicker than the Radeon HD 6790 in general, due to its higher data rate. (explain)

GeForce GTX 570		152000 MB/sec
Radeon HD 6790		134400 MB/sec
	Difference: 17600 (13%)

Texel Rate

The GeForce GTX 570 will be much (approximately 31%) more effective at anisotropic filtering than the Radeon HD 6790. (explain)

GeForce GTX 570		43920 Mtexels/sec
Radeon HD 6790		33600 Mtexels/sec
	Difference: 10320 (31%)

Pixel Rate

The GeForce GTX 570 is a lot (more or less 118%) more effective at FSAA than the Radeon HD 6790, and will be capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX 570		29280 Mpixels/sec
Radeon HD 6790		13440 Mpixels/sec
	Difference: 15840 (118%)

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 largest amount of data (in units of MB per second) that can be moved across the external memory interface in one second. It is worked out by multiplying the bus width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out 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 also depends 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 max fill rate.