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GeForce GTX 295 vs Radeon HD 6670 (OEM) 1GB

Intro

The GeForce GTX 295 uses a 55 nm design. nVidia has clocked the core speed at 576 MHz. The GDDR3 RAM works at a frequency of 999 MHz on this model. It features 240 SPUs along with 80 TAUs and 28 ROPs.

Compare those specifications to the Radeon HD 6670 (OEM) 1GB, which features core clock speeds of 800 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 memory. It features 480 SPUs along with 24 Texture Address Units and 8 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6670 (OEM) 1GB 63 Watts
GeForce GTX 295 289 Watts
Difference: 226 Watts (359%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 295 should in theory be much better than the Radeon HD 6670 (OEM) 1GB in general. (explain)

GeForce GTX 295 223776 MB/sec
Radeon HD 6670 (OEM) 1GB 64000 MB/sec
Difference: 159776 (250%)

Texel Rate

The GeForce GTX 295 will be a lot (more or less 380%) more effective at texture filtering than the Radeon HD 6670 (OEM) 1GB. (explain)

GeForce GTX 295 92160 Mtexels/sec
Radeon HD 6670 (OEM) 1GB 19200 Mtexels/sec
Difference: 72960 (380%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 295 is a better choice, by a large margin. (explain)

GeForce GTX 295 32256 Mpixels/sec
Radeon HD 6670 (OEM) 1GB 6400 Mpixels/sec
Difference: 25856 (404%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

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GeForce GTX 295

Amazon.com

Check prices at:

Radeon HD 6670 (OEM) 1GB

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce GTX 295 Radeon HD 6670 (OEM) 1GB
Manufacturer nVidia AMD
Year January 8, 2009 February 2011
Code Name G200b Turks
Memory 896 MB (x2) 1024 MB
Core Speed 576 MHz (x2) 800 MHz
Memory Speed 1998 MHz (x2) 4000 MHz
Power (Max TDP) 289 watts 63 watts
Bandwidth 223776 MB/sec 64000 MB/sec
Texel Rate 92160 Mtexels/sec 19200 Mtexels/sec
Pixel Rate 32256 Mpixels/sec 6400 Mpixels/sec
Unified Shaders 240 (x2) 480
Texture Mapping Units 80 (x2) 24
Render Output Units 28 (x2) 8
Bus Type GDDR3 GDDR5
Bus Width 448-bit (x2) 128-bit
Fab Process 55 nm 40 nm
Transistors 1400 million 715 million
Bus PCIe x16 2.0 PCIe 2.1 x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.1 OpenGL 4.1

Memory Bandwidth: Bandwidth is the max amount of information (counted in megabytes per second) that can be transported across the external memory interface in one second. The number is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one 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 this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the core 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 rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce GTX 295

Amazon.com

Check prices at:

Radeon HD 6670 (OEM) 1GB

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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