GeForce GTS 450 vs Radeon R9 390X 8G

Intro

Compare all that to the Radeon R9 390X 8G, which features a GPU core clock speed of 1050 MHz, and 8192 MB of GDDR5 memory running at 1500 MHz through a 512-bit bus. It also is made up of 2816 Stream Processors, 176 TAUs, and 64 Raster Operation 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

Radeon R9 390X 8G		13555 points
GeForce GTS 450		1453 points
	Difference: 12102 (833%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450		106 Watts
Radeon R9 390X 8G		275 Watts
	Difference: 169 Watts (159%)

Memory Bandwidth

In theory, the Radeon R9 390X 8G should be 565% faster than the GeForce GTS 450 in general, due to its greater bandwidth. (explain)

Radeon R9 390X 8G		384000 MB/sec
GeForce GTS 450		57728 MB/sec
	Difference: 326272 (565%)

Texel Rate

The Radeon R9 390X 8G will be quite a bit (approximately 638%) faster with regards to AF than the GeForce GTS 450. (explain)

Radeon R9 390X 8G		184800 Mtexels/sec
GeForce GTS 450		25056 Mtexels/sec
	Difference: 159744 (638%)

Pixel Rate

The Radeon R9 390X 8G is quite a bit (approximately 436%) faster with regards to AA than the GeForce GTS 450, and able to handle higher resolutions more effectively. (explain)

Radeon R9 390X 8G		67200 Mpixels/sec
GeForce GTS 450		12528 Mpixels/sec
	Difference: 54672 (436%)

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 maximum amount of data (measured in megabytes per second) that can be transferred over the external memory interface within a second. The number is worked out by multiplying the bus width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better 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 amount of texture map elements (texels) that are applied per second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the graphics 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 maximum number of pixels that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.