GeForce GTX 650 vs Radeon R9 390X 8G

Intro

Compare those specifications to the Radeon R9 390X 8G, which uses a 28 nm design. AMD has clocked the core frequency at 1050 MHz. The GDDR5 RAM runs at a speed of 1500 MHz on this specific card. It features 2816 SPUs as well as 176 TAUs and 64 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

Radeon R9 390X 8G		13555 points
GeForce GTX 650		2263 points
	Difference: 11292 (499%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650		64 Watts
Radeon R9 390X 8G		275 Watts
	Difference: 211 Watts (330%)

Memory Bandwidth

The Radeon R9 390X 8G, in theory, should be much faster than the GeForce GTX 650 overall. (explain)

Radeon R9 390X 8G		384000 MB/sec
GeForce GTX 650		80000 MB/sec
	Difference: 304000 (380%)

Texel Rate

The Radeon R9 390X 8G will be a lot (about 446%) better at AF than the GeForce GTX 650. (explain)

Radeon R9 390X 8G		184800 Mtexels/sec
GeForce GTX 650		33856 Mtexels/sec
	Difference: 150944 (446%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon R9 390X 8G is superior to the GeForce GTX 650, by a large margin. (explain)

Radeon R9 390X 8G		67200 Mpixels/sec
GeForce GTX 650		16928 Mpixels/sec
	Difference: 50272 (297%)

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 data (measured in megabytes per second) that can be transferred across the external memory interface within a second. It is calculated by multiplying the bus width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, 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 texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.