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GeForce GTX 960 vs Radeon HD 4870 512MB

Intro

The GeForce GTX 960 features a core clock speed of 1127 MHz and a GDDR5 memory speed of 1750 MHz. It also uses a 128-bit memory bus, and makes use of a 28 nm design. It features 1024 SPUs, 64 Texture Address Units, and 32 Raster Operation Units.

Compare all of that to the Radeon HD 4870 512MB, which comes with GPU clock speed of 750 MHz, and 512 MB of GDDR5 RAM set to run at 900 MHz through a 256-bit bus. It also is comprised of 800(160x5) Stream Processors, 40 TAUs, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 960 120 Watts
Radeon HD 4870 512MB 150 Watts
Difference: 30 Watts (25%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 4870 512MB is 3% faster than the GeForce GTX 960 in general, because of its greater bandwidth. (explain)

Radeon HD 4870 512MB 115200 MB/sec
GeForce GTX 960 112000 MB/sec
Difference: 3200 (3%)

Texel Rate

The GeForce GTX 960 should be much (more or less 140%) faster with regards to texture filtering than the Radeon HD 4870 512MB. (explain)

GeForce GTX 960 72128 Mtexels/sec
Radeon HD 4870 512MB 30000 Mtexels/sec
Difference: 42128 (140%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 960 is the winner, by a large margin. (explain)

GeForce GTX 960 36064 Mpixels/sec
Radeon HD 4870 512MB 12000 Mpixels/sec
Difference: 24064 (201%)

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

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GeForce GTX 960

Amazon.com

Check prices at:

Radeon HD 4870 512MB

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

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Model GeForce GTX 960 Radeon HD 4870 512MB
Manufacturer nVidia AMD
Year January 2015 Jun 25, 2008
Code Name GM206 RV770 XT
Memory 2048 MB 512 MB
Core Speed 1127 MHz 750 MHz
Memory Speed 7000 MHz 3600 MHz
Power (Max TDP) 120 watts 150 watts
Bandwidth 112000 MB/sec 115200 MB/sec
Texel Rate 72128 Mtexels/sec 30000 Mtexels/sec
Pixel Rate 36064 Mpixels/sec 12000 Mpixels/sec
Unified Shaders 1024 800(160x5)
Texture Mapping Units 64 40
Render Output Units 32 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 256-bit
Fab Process 28 nm 55 nm
Transistors 2940 million 956 million
Bus PCIe 3.0 x16 PCIe 2.0 x16
DirectX Version DirectX 12.0 DirectX 10.1
OpenGL Version OpenGL 4.5 OpenGL 3.0

Memory Bandwidth: Bandwidth is the largest amount of data (in units of megabytes per second) that can be moved over the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better 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 amount of texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

GeForce GTX 960

Amazon.com

Check prices at:

Radeon HD 4870 512MB

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.

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