Radeon R7 250 vs Radeon R9 380 4G

Intro

Compare those specifications to the Radeon R9 380 4G, which features GPU clock speed of 970 MHz, and 4096 MB of GDDR5 RAM running at 1425 MHz through a 256-bit bus. It also features 1792 SPUs, 112 Texture Address Units, and 32 ROPs.

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 380 4G		8837 points
Radeon R7 250		1836 points
	Difference: 7001 (381%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250		65 Watts
Radeon R9 380 4G		190 Watts
	Difference: 125 Watts (192%)

Memory Bandwidth

As far as performance goes, the Radeon R9 380 4G should theoretically be much superior to the Radeon R7 250 in general. (explain)

Radeon R9 380 4G		182400 MB/sec
Radeon R7 250		73600 MB/sec
	Difference: 108800 (148%)

Texel Rate

The Radeon R9 380 4G should be a lot (approximately 353%) faster with regards to anisotropic filtering than the Radeon R7 250. (explain)

Radeon R9 380 4G		108640 Mtexels/sec
Radeon R7 250		24000 Mtexels/sec
	Difference: 84640 (353%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon R9 380 4G is the winner, by far. (explain)

Radeon R9 380 4G		31040 Mpixels/sec
Radeon R7 250		8000 Mpixels/sec
	Difference: 23040 (288%)

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 largest amount of data (in units of megabytes per second) that can be moved past the external memory interface in one second. It's worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

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