Join Us On Facebook

Compare any two graphics cards:
VS

GeForce GTX 260 vs Radeon HD 6970

Intro

The GeForce GTX 260 uses a 65 nm design. nVidia has set the core frequency at 576 MHz. The GDDR3 RAM works at a frequency of 999 MHz on this specific card. It features 192 SPUs as well as 64 Texture Address Units and 28 ROPs.

Compare that to the Radeon HD 6970, which features core speeds of 880 MHz on the GPU, and 1375 MHz on the 2048 MB of GDDR5 RAM. It features 1536 SPUs along with 96 Texture Address Units and 32 Rasterization Operator Units.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 260 182 Watts
Radeon HD 6970 250 Watts
Difference: 68 Watts (37%)

Memory Bandwidth

In theory, the Radeon HD 6970 should be a lot faster than the GeForce GTX 260 overall. (explain)

Radeon HD 6970 176000 MB/sec
GeForce GTX 260 111888 MB/sec
Difference: 64112 (57%)

Texel Rate

The Radeon HD 6970 is quite a bit (approximately 129%) more effective at AF than the GeForce GTX 260. (explain)

Radeon HD 6970 84480 Mtexels/sec
GeForce GTX 260 36864 Mtexels/sec
Difference: 47616 (129%)

Pixel Rate

The Radeon HD 6970 is much (about 75%) more effective at FSAA than the GeForce GTX 260, and also will be able to handle higher screen resolutions more effectively. (explain)

Radeon HD 6970 28160 Mpixels/sec
GeForce GTX 260 16128 Mpixels/sec
Difference: 12032 (75%)

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

GeForce GTX 260

Amazon.com

Radeon HD 6970

Amazon.com

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

Model GeForce GTX 260 Radeon HD 6970
Manufacturer nVidia AMD
Year June 16, 2008 December 2010
Code Name G200 Cayman XT
Fab Process 65 nm 40 nm
Bus PCIe x16 2.0 PCIe x16
Memory 896 MB 2048 MB
Core Speed 576 MHz 880 MHz
Shader Speed 1242 MHz (N/A) MHz
Memory Speed 999 MHz (1998 MHz effective) 1375 MHz (5500 MHz effective)
Unified Shaders 192 1536
Texture Mapping Units 64 96
Render Output Units 28 32
Bus Type GDDR3 GDDR5
Bus Width 448-bit 256-bit
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.1 OpenGL 4.1
Power (Max TDP) 182 watts 250 watts
Shader Model 4.0 5.0
Bandwidth 111888 MB/sec 176000 MB/sec
Texel Rate 36864 Mtexels/sec 84480 Mtexels/sec
Pixel Rate 16128 Mpixels/sec 28160 Mpixels/sec

Memory Bandwidth: Bandwidth is the maximum amount of data (counted in MB per second) that can be transferred past the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 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, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Comments

Be the first to leave a comment!

Your email address will not be published.


You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>

Spam Protection by WP-SpamFree