GeForce GTX 970 vs Radeon R7 250

Intro

Compare all of that to the Radeon R7 250, which uses a 28 nm design. AMD has set the core frequency at 1000 MHz. The GDDR5 memory runs at a frequency of 1150 MHz on this specific model. It features 384 SPUs along with 24 TAUs and 8 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 970		10867 points
Radeon R7 250		1836 points
	Difference: 9031 (492%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250		65 Watts
GeForce GTX 970		145 Watts
	Difference: 80 Watts (123%)

Memory Bandwidth

Performance-wise, the GeForce GTX 970 should theoretically be quite a bit superior to the Radeon R7 250 overall. (explain)

GeForce GTX 970		224000 MB/sec
Radeon R7 250		73600 MB/sec
	Difference: 150400 (204%)

Texel Rate

The GeForce GTX 970 will be much (more or less 355%) faster with regards to texture filtering than the Radeon R7 250. (explain)

GeForce GTX 970		109200 Mtexels/sec
Radeon R7 250		24000 Mtexels/sec
	Difference: 85200 (355%)

Pixel Rate

The GeForce GTX 970 should be much (approximately 740%) faster with regards to full screen anti-aliasing than the Radeon R7 250, and will be able to handle higher screen resolutions while still performing well. (explain)

GeForce GTX 970		67200 Mpixels/sec
Radeon R7 250		8000 Mpixels/sec
	Difference: 59200 (740%)

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 maximum amount of information (measured in MB per second) that can be transferred over the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.