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GeForce GTX 960 vs Radeon HD 4870 1GB

Intro

The GeForce GTX 960 has a GPU core clock speed of 1127 MHz, and the 2048 MB of GDDR5 memory is set to run at 1750 MHz through a 128-bit bus. It also is made up of 1024 Stream Processors, 64 Texture Address Units, and 32 ROPs.

Compare those specifications to the Radeon HD 4870 1GB, which features a clock frequency of 750 MHz and a GDDR5 memory speed of 900 MHz. It also features a 256-bit memory bus, and uses a 55 nm design. It is made up of 800(160x5) SPUs, 40 Texture Address Units, 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 1GB 150 Watts
Difference: 30 Watts (25%)

Memory Bandwidth

As far as performance goes, the Radeon HD 4870 1GB should in theory be a little bit superior to the GeForce GTX 960 overall. (explain)

Radeon HD 4870 1GB 115200 MB/sec
GeForce GTX 960 112000 MB/sec
Difference: 3200 (3%)

Texel Rate

The GeForce GTX 960 will be much (more or less 140%) better at AF than the Radeon HD 4870 1GB. (explain)

GeForce GTX 960 72128 Mtexels/sec
Radeon HD 4870 1GB 30000 Mtexels/sec
Difference: 42128 (140%)

Pixel Rate

The GeForce GTX 960 will be quite a bit (about 201%) more effective at full screen anti-aliasing than the Radeon HD 4870 1GB, and should be capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GTX 960 36064 Mpixels/sec
Radeon HD 4870 1GB 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 1GB

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 1GB
Manufacturer nVidia AMD
Year January 2015 Jun 25, 2008
Code Name GM206 RV770 XT
Memory 2048 MB 1024 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: Memory bandwidth is the largest amount of data (counted in MB per second) that can be transferred past the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the video card will be at handling 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 could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

GeForce GTX 960

Amazon.com

Check prices at:

Radeon HD 4870 1GB

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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