GeForce GTX 660 vs Radeon R7 240

Intro

Compare those specifications to the Radeon R7 240, which uses a 28 nm design. AMD has clocked the core frequency at 730 MHz. The DDR3 memory is set to run at a frequency of 900 MHz on this specific card. It features 320 SPUs along with 20 TAUs and 8 ROPs.

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 660		5063 points
Radeon R7 240		1218 points
	Difference: 3845 (316%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 240		30 Watts
GeForce GTX 660		140 Watts
	Difference: 110 Watts (367%)

Memory Bandwidth

The GeForce GTX 660 should in theory be quite a bit faster than the Radeon R7 240 overall. (explain)

GeForce GTX 660		144192 MB/sec
Radeon R7 240		28800 MB/sec
	Difference: 115392 (401%)

Texel Rate

The GeForce GTX 660 should be much (more or less 437%) better at AF than the Radeon R7 240. (explain)

GeForce GTX 660		78400 Mtexels/sec
Radeon R7 240		14600 Mtexels/sec
	Difference: 63800 (437%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 660 is a better choice, by far. (explain)

GeForce GTX 660		23520 Mpixels/sec
Radeon R7 240		5840 Mpixels/sec
	Difference: 17680 (303%)

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 max amount of data (measured in MB per second) that can be moved over the external memory interface in one second. It's calculated by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, 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 amount of texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.