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GeForce GTX 950 vs Radeon HD 4870 512MB

Intro

The GeForce GTX 950 has core clock speeds of 1024 MHz on the GPU, and 1652 MHz on the 2048 MB of GDDR5 RAM. It features 768 SPUs along with 48 TAUs and 32 ROPs.

Compare all of that to the Radeon HD 4870 512MB, which has core speeds of 750 MHz on the GPU, and 900 MHz on the 512 MB of GDDR5 memory. It features 800(160x5) SPUs as well as 40 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950 90 Watts
Radeon HD 4870 512MB 150 Watts
Difference: 60 Watts (67%)

Memory Bandwidth

As far as performance goes, the Radeon HD 4870 512MB should in theory be a small bit superior to the GeForce GTX 950 in general. (explain)

Radeon HD 4870 512MB 115200 MB/sec
GeForce GTX 950 105728 MB/sec
Difference: 9472 (9%)

Texel Rate

The GeForce GTX 950 should be much (more or less 64%) faster with regards to AF than the Radeon HD 4870 512MB. (explain)

GeForce GTX 950 49152 Mtexels/sec
Radeon HD 4870 512MB 30000 Mtexels/sec
Difference: 19152 (64%)

Pixel Rate

The GeForce GTX 950 is a lot (more or less 173%) faster with regards to FSAA than the Radeon HD 4870 512MB, and also will be able to handle higher resolutions more effectively. (explain)

GeForce GTX 950 32768 Mpixels/sec
Radeon HD 4870 512MB 12000 Mpixels/sec
Difference: 20768 (173%)

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 950

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 950 Radeon HD 4870 512MB
Manufacturer nVidia AMD
Year August 2015 Jun 25, 2008
Code Name GM206 RV770 XT
Memory 2048 MB 512 MB
Core Speed 1024 MHz 750 MHz
Memory Speed 6608 MHz 3600 MHz
Power (Max TDP) 90 watts 150 watts
Bandwidth 105728 MB/sec 115200 MB/sec
Texel Rate 49152 Mtexels/sec 30000 Mtexels/sec
Pixel Rate 32768 Mpixels/sec 12000 Mpixels/sec
Unified Shaders 768 800(160x5)
Texture Mapping Units 48 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 maximum amount of information (measured in MB per second) that can be transported over the external memory interface in a second. The number is calculated by multiplying the interface width by its memory clock speed. If it uses DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. 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 amount of texture map elements (texels) that are processed in one second. This figure is worked out 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

GeForce GTX 950

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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