Radeon HD 6950 vs Radeon R9 380 4G

Intro

Compare all of that to the Radeon R9 380 4G, which features GPU clock speed of 970 MHz, and 4096 MB of GDDR5 memory set to run at 1425 MHz through a 256-bit bus. It also features 1792 Stream Processors, 112 TAUs, 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 HD 6950		3240 points
	Difference: 5597 (173%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 380 4G		190 Watts
Radeon HD 6950		200 Watts
	Difference: 10 Watts (5%)

Memory Bandwidth

The Radeon R9 380 4G should theoretically perform a bit faster than the Radeon HD 6950 in general. (explain)

Radeon R9 380 4G		182400 MB/sec
Radeon HD 6950		160000 MB/sec
	Difference: 22400 (14%)

Texel Rate

The Radeon R9 380 4G will be much (approximately 54%) more effective at texture filtering than the Radeon HD 6950. (explain)

Radeon R9 380 4G		108640 Mtexels/sec
Radeon HD 6950		70400 Mtexels/sec
	Difference: 38240 (54%)

Pixel Rate

The Radeon R9 380 4G will be quite a bit (approximately 21%) more effective at full screen anti-aliasing than the Radeon HD 6950, and should be able to handle higher screen resolutions without losing too much performance. (explain)

Radeon R9 380 4G		31040 Mpixels/sec
Radeon HD 6950		25600 Mpixels/sec
	Difference: 5440 (21%)

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 information (measured in megabytes per second) that can be transferred across the external memory interface in a second. The number is calculated by multiplying the interface width by the speed of its memory. If the card has DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total amount of texture units 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 in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to the 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 speed of the card. 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 also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.