GeForce GTX 650 vs Radeon R7 250X

Intro

Compare all of that to the Radeon R7 250X, which comes with a clock frequency of 1000 MHz and a GDDR5 memory frequency of 1125 MHz. It also uses a 128-bit memory bus, and uses a 28 nm design. It is made up of 640 SPUs, 40 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

Radeon R7 250X		2860 points
GeForce GTX 650		2263 points
	Difference: 597 (26%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650		64 Watts
Radeon R7 250X		95 Watts
	Difference: 31 Watts (48%)

Memory Bandwidth

Performance-wise, the GeForce GTX 650 should in theory be a bit superior to the Radeon R7 250X in general. (explain)

GeForce GTX 650		80000 MB/sec
Radeon R7 250X		72000 MB/sec
	Difference: 8000 (11%)

Texel Rate

The Radeon R7 250X is a bit (about 18%) more effective at anisotropic filtering than the GeForce GTX 650. (explain)

Radeon R7 250X		40000 Mtexels/sec
GeForce GTX 650		33856 Mtexels/sec
	Difference: 6144 (18%)

Pixel Rate

The GeForce GTX 650 will be a little bit (approximately 6%) faster with regards to FSAA than the Radeon R7 250X, and able to handle higher screen resolutions while still performing well. (explain)

GeForce GTX 650		16928 Mpixels/sec
Radeon R7 250X		16000 Mpixels/sec
	Difference: 928 (6%)

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 moved over the external memory interface in a second. The number is calculated by multiplying the bus width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total amount of texture units of the card 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 in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.