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GeForce GTX 560 Ti 448 vs Radeon HD 7850

Intro

The GeForce GTX 560 Ti 448 has a clock frequency of 732 MHz and a GDDR5 memory speed of 900 MHz. It also uses a 320-bit memory bus, and uses a 40 nm design. It features 448 SPUs, 56 TAUs, and 40 ROPs.

Compare that to the Radeon HD 7850, which comes with a GPU core clock speed of 860 MHz, and 2048 MB of GDDR5 RAM running at 1200 MHz through a 256-bit bus. It also is comprised of 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

In theory, the Radeon HD 7850 should be a little bit faster than the GeForce GTX 560 Ti 448 overall. (explain)

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

Texel Rate

The Radeon HD 7850 should be a lot (approximately 34%) more effective 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

If running with a high resolution is important to you, then the GeForce GTX 560 Ti 448 is superior to the Radeon HD 7850, but not by far. (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: Memory bandwidth is the maximum amount of data (measured in megabytes per second) that can be transferred past the external memory interface within a second. It's calculated by multiplying the interface width by the speed of its memory. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed 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 better this number, the better the video 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 the video card could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill 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 potential 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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