Radeon HD 6950 vs Radeon R7 250

Intro

Compare all that to the Radeon R7 250, which features core speeds of 1000 MHz on the GPU, and 1150 MHz on the 1024 MB of GDDR5 memory. It features 384 SPUs along with 24 TAUs and 8 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 HD 6950		3240 points
Radeon R7 250		1836 points
	Difference: 1404 (76%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250		65 Watts
Radeon HD 6950		200 Watts
	Difference: 135 Watts (208%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 6950 should be 117% quicker than the Radeon R7 250 overall, due to its higher data rate. (explain)

Radeon HD 6950		160000 MB/sec
Radeon R7 250		73600 MB/sec
	Difference: 86400 (117%)

Texel Rate

The Radeon HD 6950 is a lot (more or less 193%) better at AF than the Radeon R7 250. (explain)

Radeon HD 6950		70400 Mtexels/sec
Radeon R7 250		24000 Mtexels/sec
	Difference: 46400 (193%)

Pixel Rate

The Radeon HD 6950 should be a lot (about 220%) better at anti-aliasing than the Radeon R7 250, and able to handle higher screen resolutions without losing too much performance. (explain)

Radeon HD 6950		25600 Mpixels/sec
Radeon R7 250		8000 Mpixels/sec
	Difference: 17600 (220%)

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 (in units of MB per second) that can be transferred across the external memory interface within a second. It is worked out by multiplying the bus width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 number of texture map elements (texels) that can be applied per second. This figure 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 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 most pixels that the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs 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 also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.