Geforce GTX 770 vs Radeon R9 M295X

Intro

Compare that to the Radeon R9 M295X, which features GPU core speed of 750 MHz, and 4096 MB of GDDR5 memory set to run at 1375 MHz through a 256-bit bus. It also features 2048 SPUs, 128 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M295X		125 Watts
Geforce GTX 770		230 Watts
	Difference: 105 Watts (84%)

Memory Bandwidth

Theoretically speaking, the Geforce GTX 770 should be a lot faster than the Radeon R9 M295X in general. (explain)

Geforce GTX 770		224384 MB/sec
Radeon R9 M295X		176000 MB/sec
	Difference: 48384 (27%)

Texel Rate

The Geforce GTX 770 will be quite a bit (more or less 39%) better at texture filtering than the Radeon R9 M295X. (explain)

Geforce GTX 770		133888 Mtexels/sec
Radeon R9 M295X		96000 Mtexels/sec
	Difference: 37888 (39%)

Pixel Rate

If using a high screen resolution is important to you, then the Geforce GTX 770 is a better choice, by far. (explain)

Geforce GTX 770		33472 Mpixels/sec
Radeon R9 M295X		24000 Mpixels/sec
	Difference: 9472 (39%)

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 data (measured in megabytes per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the bus width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.