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GeForce GTX 560 Ti 448 vs Radeon HD 7850

Intro

The GeForce GTX 560 Ti 448 features a core clock frequency of 732 MHz and a GDDR5 memory speed of 900 MHz. It also uses a 320-bit bus, and makes use of a 40 nm design. It is made up of 448 SPUs, 56 Texture Address Units, and 40 ROPs.

Compare those specifications to the Radeon HD 7850, which features a core clock frequency of 860 MHz and a GDDR5 memory frequency of 1200 MHz. It also uses a 256-bit memory bus, and makes use of a 28 nm design. It features 1024 SPUs, 64 TAUs, and 32 Raster Operation Units.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7850 130 Watts
GeForce GTX 560 Ti 448 210 Watts
Difference: 80 Watts (62%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 7850 should be a bit faster than the GeForce GTX 560 Ti 448 in general. (explain)

Radeon HD 7850 153600 MB/sec
GeForce GTX 560 Ti 448 144000 MB/sec
Difference: 9600 (7%)

Texel Rate

The Radeon HD 7850 will be much (more or less 34%) better at texture filtering than the GeForce GTX 560 Ti 448. (explain)

Radeon HD 7850 55040 Mtexels/sec
GeForce GTX 560 Ti 448 40992 Mtexels/sec
Difference: 14048 (34%)

Pixel Rate

The GeForce GTX 560 Ti 448 should be a small bit (about 6%) more effective at full screen anti-aliasing than the Radeon HD 7850, and also should be able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GTX 560 Ti 448 29280 Mpixels/sec
Radeon HD 7850 27520 Mpixels/sec
Difference: 1760 (6%)

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 448

Amazon.com

Radeon HD 7850

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 448 Radeon HD 7850
Manufacturer nVidia AMD
Year December 2011 March 2012
Code Name GF110 Pitcairn Pro
Fab Process 40 nm 28 nm
Bus PCIe 2.0 x16 PCIe 3.0 x16
Memory 1280 MB 2048 MB
Core Speed 732 MHz 860 MHz
Shader Speed 1464 MHz (N/A) MHz
Memory Speed 900 MHz (3600 MHz effective) 1200 MHz (4800 MHz effective)
Unified Shaders 448 1024
Texture Mapping Units 56 64
Render Output Units 40 32
Bus Type GDDR5 GDDR5
Bus Width 320-bit 256-bit
DirectX Version DirectX 11 DirectX 11.1
OpenGL Version OpenGL 4.2 OpenGL 4.2
Power (Max TDP) 210 watts 130 watts
Shader Model 5.0 5.0
Bandwidth 144000 MB/sec 153600 MB/sec
Texel Rate 40992 Mtexels/sec 55040 Mtexels/sec
Pixel Rate 29280 Mpixels/sec 27520 Mpixels/sec

Memory Bandwidth: Bandwidth is the max amount of information (in units of MB per second) that can be transported across the external memory interface in a second. It is worked out by multiplying the interface width by the speed of its memory. In the case of DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better 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 processed per 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 the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the core 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 also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Comments

One Response to “GeForce GTX 560 Ti 448 vs Radeon HD 7850”
[...] Definitely the HD 7850 ( OC'd to 975mhz) would be a better choice because it has the new 28nm architecture, powerfull (compared to GTX560 TI) n stuff ( 2GB RAM and consumes less power ) Check this site out for more performance comparisons... ( Nvidia Geforce GTX 560 TI 448 vs AMD Radeon HD 7850) GeForce GTX 560 Ti 448 vs Radeon HD 7850 – Performance Comparison Benchmarks @ Hardware Compar... [...]

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