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GeForce GTX 950 vs Radeon HD 7870

Intro

The GeForce GTX 950 comes with core speeds of 1024 MHz on the GPU, and 1652 MHz on the 2048 MB of GDDR5 memory. It features 768 SPUs as well as 48 Texture Address Units and 32 Rasterization Operator Units.

Compare all that to the Radeon HD 7870, which comes with a clock speed of 1000 MHz and a GDDR5 memory frequency of 1200 MHz. It also uses a 256-bit bus, and makes use of a 28 nm design. It features 1280 SPUs, 80 TAUs, and 32 ROPs.

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 950 6536 points
Radeon HD 7870 6230 points
Difference: 306 (5%)

Ethereum Mining Hash Rate

Radeon HD 7870 16 Mh/s
GeForce GTX 950 10 Mh/s
Difference: 6 (60%)

Zcash Mining Hash Rate

Radeon HD 7870 172 Sol/s
GeForce GTX 950 155 Sol/s
Difference: 17 (11%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950 90 Watts
Radeon HD 7870 175 Watts
Difference: 85 Watts (94%)

Memory Bandwidth

In theory, the Radeon HD 7870 is 45% quicker than the GeForce GTX 950 in general, because of its higher data rate. (explain)

Radeon HD 7870 153600 MB/sec
GeForce GTX 950 105728 MB/sec
Difference: 47872 (45%)

Texel Rate

The Radeon HD 7870 is a lot (more or less 63%) better at texture filtering than the GeForce GTX 950. (explain)

Radeon HD 7870 80000 Mtexels/sec
GeForce GTX 950 49152 Mtexels/sec
Difference: 30848 (63%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 950 is the winner, though only just barely. (explain)

GeForce GTX 950 32768 Mpixels/sec
Radeon HD 7870 32000 Mpixels/sec
Difference: 768 (2%)

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

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Radeon HD 7870

Amazon.com

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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 7870
Manufacturer nVidia AMD
Year August 2015 March 2012
Code Name GM206 Pitcairn XT
Memory 2048 MB 2048 MB
Core Speed 1024 MHz 1000 MHz
Memory Speed 6608 MHz 4800 MHz
Power (Max TDP) 90 watts 175 watts
Bandwidth 105728 MB/sec 153600 MB/sec
Texel Rate 49152 Mtexels/sec 80000 Mtexels/sec
Pixel Rate 32768 Mpixels/sec 32000 Mpixels/sec
Unified Shaders 768 1280
Texture Mapping Units 48 80
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 128-bit 256-bit
Fab Process 28 nm 28 nm
Transistors 2940 million 2800 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12.0 DirectX 11.1
OpenGL Version OpenGL 4.5 OpenGL 4.2

Memory Bandwidth: Memory bandwidth is the max amount of data (measured in MB per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the bus width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce GTX 950

Amazon.com

Check prices at:

Radeon HD 7870

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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