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GeForce GTX 560 Ti vs Radeon HD 5870

Intro

The GeForce GTX 560 Ti features clock speeds of 822 MHz on the GPU, and 1002 MHz on the 1024 MB of GDDR5 RAM. It features 384 SPUs along with 64 TAUs and 32 ROPs.

Compare those specs to the Radeon HD 5870, which comes with GPU core speed of 850 MHz, and 1024 MB of GDDR5 RAM running at 1200 MHz through a 256-bit bus. It also features 1600(320x5) Stream Processors, 80 TAUs, and 32 Raster Operation Units.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 560 Ti 170 Watts
Radeon HD 5870 188 Watts
Difference: 18 Watts (11%)

Memory Bandwidth

Performance-wise, the Radeon HD 5870 should in theory be a small bit superior to the GeForce GTX 560 Ti in general. (explain)

Radeon HD 5870 153600 MB/sec
GeForce GTX 560 Ti 128256 MB/sec
Difference: 25344 (20%)

Texel Rate

The Radeon HD 5870 should be much (more or less 29%) faster with regards to texture filtering than the GeForce GTX 560 Ti. (explain)

Radeon HD 5870 68000 Mtexels/sec
GeForce GTX 560 Ti 52608 Mtexels/sec
Difference: 15392 (29%)

Pixel Rate

The Radeon HD 5870 will be a little bit (approximately 3%) better at full screen anti-aliasing than the GeForce GTX 560 Ti, and also able to handle higher screen resolutions without losing too much performance. (explain)

Radeon HD 5870 27200 Mpixels/sec
GeForce GTX 560 Ti 26304 Mpixels/sec
Difference: 896 (3%)

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 5870

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 5870
Manufacturer nVidia AMD
Year January 2011 September 23, 2009
Code Name GF114 Cypress XT
Fab Process 40 nm 40 nm
Bus PCIe x16 PCIe 2.1 x16
Memory 1024 MB 1024 MB
Core Speed 822 MHz 850 MHz
Shader Speed 1645 MHz (N/A) MHz
Memory Speed 1002 MHz (4008 MHz effective) 1200 MHz (4800 MHz effective)
Unified Shaders 384 1600(320x5)
Texture Mapping Units 64 80
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 3.2
Power (Max TDP) 170 watts 188 watts
Shader Model 5.0 5.0
Bandwidth 128256 MB/sec 153600 MB/sec
Texel Rate 52608 Mtexels/sec 68000 Mtexels/sec
Pixel Rate 26304 Mpixels/sec 27200 Mpixels/sec

Memory Bandwidth: Bandwidth is the largest amount of data (in units of MB per second) that can be transported over the external memory interface within a second. It's calculated by multiplying the bus width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, 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 amount of texture map elements (texels) that are applied per second. This is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per 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 figure is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Comments

3 Responses to “GeForce GTX 560 Ti vs Radeon HD 5870”
Danish says:
It seems that HD 5870 has left GTX 560 Ti behind in performance.
Niko says:
I just bought a 5870 for 149 shipped. the 560 Ti is going for 200 right now, not worth the 50 bucks in my opinion if your just going with a single card setup
Alex says:
Which is better between the HD 5870 and GTX 560 IT? but seeing the results is better HD 5870, but I hesitate and price are the same? x (

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