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GeForce GTX 960 vs Radeon HD 4870 1GB

Intro

The GeForce GTX 960 features a GPU core clock speed of 1127 MHz, and the 2048 MB of GDDR5 RAM runs at 1750 MHz through a 128-bit bus. It also is made up of 1024 Stream Processors, 64 TAUs, and 32 Raster Operation Units.

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

Memory Bandwidth

Performance-wise, the Radeon HD 4870 1GB should in theory be a bit better than the GeForce GTX 960 in general. (explain)

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

Texel Rate

The GeForce GTX 960 should be quite a bit (approximately 140%) more effective 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

If using a high screen resolution is important to you, then the GeForce GTX 960 is superior to the Radeon HD 4870 1GB, and very much so. (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 information (measured in megabytes per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the bus width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the 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 number of texture map elements (texels) that are applied in one second. This is calculated by multiplying the total texture units by the core speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel 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 reach 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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