GeForce GT 315 vs Radeon HD 6950

Intro

Compare all that to the Radeon HD 6950, which features a GPU core clock speed of 800 MHz, and 1024 MB of GDDR5 memory set to run at 1250 MHz through a 256-bit bus. It also features 1408 Stream Processors, 88 TAUs, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 315		52 Watts
Radeon HD 6950		200 Watts
	Difference: 148 Watts (285%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 6950 should be a lot faster than the GeForce GT 315 overall. (explain)

Radeon HD 6950		160000 MB/sec
GeForce GT 315		25280 MB/sec
	Difference: 134720 (533%)

Texel Rate

The Radeon HD 6950 is much (approximately 604%) more effective at texture filtering than the GeForce GT 315. (explain)

Radeon HD 6950		70400 Mtexels/sec
GeForce GT 315		10000 Mtexels/sec
	Difference: 60400 (604%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon HD 6950 is superior to the GeForce GT 315, by a large margin. (explain)

Radeon HD 6950		25600 Mpixels/sec
GeForce GT 315		5000 Mpixels/sec
	Difference: 20600 (412%)

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 maximum amount of information (measured in MB 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 the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This is worked out by multiplying the total texture units of the card by the core 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 amount of pixels the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.