GeForce 9500 GT 1GB GDDR3 vs Radeon R9 380 4G

Intro

Compare that to the Radeon R9 380 4G, which makes use of a 28 nm design. AMD has set the core speed at 970 MHz. The GDDR5 RAM runs at a frequency of 1425 MHz on this model. It features 1792 SPUs as well as 112 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9500 GT 1GB GDDR3		50 Watts
Radeon R9 380 4G		190 Watts
	Difference: 140 Watts (280%)

Memory Bandwidth

In theory, the Radeon R9 380 4G will be 613% quicker than the GeForce 9500 GT 1GB GDDR3 overall, due to its higher data rate. (explain)

Radeon R9 380 4G		182400 MB/sec
GeForce 9500 GT 1GB GDDR3		25600 MB/sec
	Difference: 156800 (613%)

Texel Rate

The Radeon R9 380 4G is quite a bit (more or less 1135%) faster with regards to AF than the GeForce 9500 GT 1GB GDDR3. (explain)

Radeon R9 380 4G		108640 Mtexels/sec
GeForce 9500 GT 1GB GDDR3		8800 Mtexels/sec
	Difference: 99840 (1135%)

Pixel Rate

The Radeon R9 380 4G will be quite a bit (more or less 605%) better at anti-aliasing than the GeForce 9500 GT 1GB GDDR3, and also able to handle higher resolutions without slowing down too much. (explain)

Radeon R9 380 4G		31040 Mpixels/sec
GeForce 9500 GT 1GB GDDR3		4400 Mpixels/sec
	Difference: 26640 (605%)

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 information (counted in megabytes per second) that can be moved over the external memory interface in one second. The number is worked out by multiplying the interface width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.