GeForce GTX 650 vs Radeon R7 250

Intro

Compare those specs to the Radeon R7 250, which makes use of a 28 nm design. AMD has set the core frequency at 1000 MHz. The GDDR5 memory works at a speed of 1150 MHz on this particular model. It features 384 SPUs along with 24 Texture Address Units and 8 Rasterization Operator Units.

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 650		2263 points
Radeon R7 250		1836 points
	Difference: 427 (23%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650		64 Watts
Radeon R7 250		65 Watts
	Difference: 1 Watts (2%)

Memory Bandwidth

The GeForce GTX 650 should in theory be a small bit faster than the Radeon R7 250 overall. (explain)

GeForce GTX 650		80000 MB/sec
Radeon R7 250		73600 MB/sec
	Difference: 6400 (9%)

Texel Rate

The GeForce GTX 650 will be much (more or less 41%) faster with regards to texture filtering than the Radeon R7 250. (explain)

GeForce GTX 650		33856 Mtexels/sec
Radeon R7 250		24000 Mtexels/sec
	Difference: 9856 (41%)

Pixel Rate

The GeForce GTX 650 should be a lot (about 112%) faster with regards to full screen anti-aliasing than the Radeon R7 250, and capable of handling higher resolutions more effectively. (explain)

GeForce GTX 650		16928 Mpixels/sec
Radeon R7 250		8000 Mpixels/sec
	Difference: 8928 (112%)

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 largest amount of information (in units of MB per second) that can be transported over the external memory interface within a second. The number is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR type memory, 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 AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to the local memory in a 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 - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.