Radeon HD 6950 vs Radeon R7 250X

Intro

Compare those specifications to the Radeon R7 250X, which has a core clock frequency of 1000 MHz and a GDDR5 memory speed of 1125 MHz. It also makes use of a 128-bit memory bus, and makes use of a 28 nm design. It features 640 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

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 250X		2860 points
	Difference: 380 (13%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250X		95 Watts
Radeon HD 6950		200 Watts
	Difference: 105 Watts (111%)

Memory Bandwidth

The Radeon HD 6950 should theoretically be much faster than the Radeon R7 250X overall. (explain)

Radeon HD 6950		160000 MB/sec
Radeon R7 250X		72000 MB/sec
	Difference: 88000 (122%)

Texel Rate

The Radeon HD 6950 should be much (approximately 76%) better at AF than the Radeon R7 250X. (explain)

Radeon HD 6950		70400 Mtexels/sec
Radeon R7 250X		40000 Mtexels/sec
	Difference: 30400 (76%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon HD 6950 is a better choice, by a large margin. (explain)

Radeon HD 6950		25600 Mpixels/sec
Radeon R7 250X		16000 Mpixels/sec
	Difference: 9600 (60%)

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 (counted in megabytes per second) that can be transported over the external memory interface within a second. It's calculated by multiplying the card's bus width by its memory speed. In the case of DDR RAM, it must be multiplied by 2 once again. If 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 high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.