Submit Benchmarks!

Submit SSD Benchmark
Submit GPU Benchmark

Compare any two graphics cards:
VS

GeForce GTX 660 Ti vs Radeon HD 4870 2GB

Intro

The GeForce GTX 660 Ti has a clock speed of 915 MHz and a GDDR5 memory speed of 1500 MHz. It also makes use of a 192-bit bus, and makes use of a 28 nm design. It features 1344 SPUs, 112 TAUs, and 24 Raster Operation Units.

Compare that to the Radeon HD 4870 2GB, which makes use of a 55 nm design. AMD has clocked the core speed at 750 MHz. The GDDR5 memory works at a speed of 900 MHz on this specific card. It features 800(160x5) SPUs along with 40 TAUs and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

In theory, the GeForce GTX 660 Ti is 25% faster than the Radeon HD 4870 2GB overall, due to its higher data rate. (explain)

GeForce GTX 660 Ti 144000 MB/sec
Radeon HD 4870 2GB 115200 MB/sec
Difference: 28800 (25%)

Texel Rate

The GeForce GTX 660 Ti will be a lot (approximately 242%) better at anisotropic filtering than the Radeon HD 4870 2GB. (explain)

GeForce GTX 660 Ti 102480 Mtexels/sec
Radeon HD 4870 2GB 30000 Mtexels/sec
Difference: 72480 (242%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 660 Ti is the winner, by a large margin. (explain)

GeForce GTX 660 Ti 21960 Mpixels/sec
Radeon HD 4870 2GB 12000 Mpixels/sec
Difference: 9960 (83%)

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

Display Prices

Hide Prices

GeForce GTX 660 Ti

Amazon.com

Check prices at:

Radeon HD 4870 2GB

Amazon.com

Check prices at:

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

Display Specifications

Hide Specifications

Model GeForce GTX 660 Ti Radeon HD 4870 2GB
Manufacturer nVidia AMD
Year August 2012 Jun 25, 2008
Code Name GK104 RV770 XT
Memory 2048 MB 2048 MB
Core Speed 915 MHz 750 MHz
Memory Speed 6000 MHz 3600 MHz
Power (Max TDP) 150 watts 150 watts
Bandwidth 144000 MB/sec 115200 MB/sec
Texel Rate 102480 Mtexels/sec 30000 Mtexels/sec
Pixel Rate 21960 Mpixels/sec 12000 Mpixels/sec
Unified Shaders 1344 800(160x5)
Texture Mapping Units 112 40
Render Output Units 24 16
Bus Type GDDR5 GDDR5
Bus Width 192-bit 256-bit
Fab Process 28 nm 55 nm
Transistors 3540 million 956 million
Bus PCIe 3.0 x16 PCIe 2.0 x16
DirectX Version DirectX 11.0 DirectX 10.1
OpenGL Version OpenGL 4.3 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the largest amount of data (counted in MB per second) that can be moved past the external memory interface in a second. The number is worked out by multiplying the interface width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 660 Ti

Amazon.com

Check prices at:

Radeon HD 4870 2GB

Amazon.com

Check prices at:

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.

Comments

Be the first to leave a comment!

Your email address will not be published. Required fields are marked *


*

WordPress Anti Spam by WP-SpamShield