Join Us On Facebook

Compare any two graphics cards:
VS

GeForce GTX 560 Ti vs Radeon HD 4870 2GB

Intro

The GeForce GTX 560 Ti has core clock speeds of 822 MHz on the GPU, and 1002 MHz on the 1024 MB of GDDR5 memory. It features 384 SPUs as well as 64 Texture Address Units and 32 Rasterization Operator Units.

Compare all of that to the Radeon HD 4870 2GB, which comes with core clock speeds of 750 MHz on the GPU, and 900 MHz on the 2048 MB of GDDR5 RAM. It features 800(160x5) SPUs along with 40 TAUs and 16 Rasterization Operator Units.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4870 2GB 150 Watts
GeForce GTX 560 Ti 170 Watts
Difference: 20 Watts (13%)

Memory Bandwidth

The GeForce GTX 560 Ti, in theory, should be a bit faster than the Radeon HD 4870 2GB in general. (explain)

GeForce GTX 560 Ti 128256 MB/sec
Radeon HD 4870 2GB 115200 MB/sec
Difference: 13056 (11%)

Texel Rate

The GeForce GTX 560 Ti will be quite a bit (approximately 75%) faster with regards to texture filtering than the Radeon HD 4870 2GB. (explain)

GeForce GTX 560 Ti 52608 Mtexels/sec
Radeon HD 4870 2GB 30000 Mtexels/sec
Difference: 22608 (75%)

Pixel Rate

The GeForce GTX 560 Ti is much (approximately 119%) more effective at full screen anti-aliasing than the Radeon HD 4870 2GB, and also able to handle higher screen resolutions while still performing well. (explain)

GeForce GTX 560 Ti 26304 Mpixels/sec
Radeon HD 4870 2GB 12000 Mpixels/sec
Difference: 14304 (119%)

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 560 Ti

Amazon.com

Radeon HD 4870 2GB

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 560 Ti Radeon HD 4870 2GB
Manufacturer nVidia AMD
Year January 2011 Jun 25, 2008
Code Name GF114 RV770 XT
Fab Process 40 nm 55 nm
Bus PCIe x16 PCIe 2.0 x16
Memory 1024 MB 2048 MB
Core Speed 822 MHz 750 MHz
Shader Speed 1645 MHz (N/A) MHz
Memory Speed 1002 MHz (4008 MHz effective) 900 MHz (3600 MHz effective)
Unified Shaders 384 800(160x5)
Texture Mapping Units 64 40
Render Output Units 32 16
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
DirectX Version DirectX 11 DirectX 10.1
OpenGL Version OpenGL 4.1 OpenGL 3.0
Power (Max TDP) 170 watts 150 watts
Shader Model 5.0 4.1
Bandwidth 128256 MB/sec 115200 MB/sec
Texel Rate 52608 Mtexels/sec 30000 Mtexels/sec
Pixel Rate 26304 Mpixels/sec 12000 Mpixels/sec

Memory Bandwidth: Memory bandwidth is the largest amount of data (measured in MB per second) that can be transported over the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better 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 texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few 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