GeForce GTX 660 vs Radeon R7 250

Intro

Compare those specifications to the Radeon R7 250, which features core clock speeds of 1000 MHz on the GPU, and 1150 MHz on the 1024 MB of GDDR5 memory. It features 384 SPUs along with 24 TAUs and 8 Rasterization Operator 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 660		5063 points
Radeon R7 250		1836 points
	Difference: 3227 (176%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250		65 Watts
GeForce GTX 660		140 Watts
	Difference: 75 Watts (115%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 660 should be 96% quicker than the Radeon R7 250 overall, due to its greater data rate. (explain)

GeForce GTX 660		144192 MB/sec
Radeon R7 250		73600 MB/sec
	Difference: 70592 (96%)

Texel Rate

The GeForce GTX 660 is a lot (approximately 227%) better at texture filtering than the Radeon R7 250. (explain)

GeForce GTX 660		78400 Mtexels/sec
Radeon R7 250		24000 Mtexels/sec
	Difference: 54400 (227%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 660 is a better choice, by a large margin. (explain)

GeForce GTX 660		23520 Mpixels/sec
Radeon R7 250		8000 Mpixels/sec
	Difference: 15520 (194%)

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 information (measured in megabytes per second) that can be transferred over the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total texture units by the core clock speed of the chip. The better this number, 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 most pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.