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GeForce GTX 470 vs Radeon HD 7850

Intro

The GeForce GTX 470 has core speeds of 607 MHz on the GPU, and 837 MHz on the 1280 MB of GDDR5 RAM. It features 448 SPUs as well as 56 Texture Address Units and 40 ROPs.

Compare that to the Radeon HD 7850, which makes use of a 28 nm design. AMD has clocked the core speed at 860 MHz. The GDDR5 RAM runs at a frequency of 1200 MHz on this card. It features 1024 SPUs as well as 64 Texture Address Units and 32 Rasterization Operator Units.

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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

Radeon HD 7850 5200 points
GeForce GTX 470 2937 points
Difference: 2263 (77%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7850 130 Watts
GeForce GTX 470 215 Watts
Difference: 85 Watts (65%)

Memory Bandwidth

As far as performance goes, the Radeon HD 7850 should theoretically be a bit superior to the GeForce GTX 470 overall. (explain)

Radeon HD 7850 153600 MB/sec
GeForce GTX 470 133920 MB/sec
Difference: 19680 (15%)

Texel Rate

The Radeon HD 7850 is quite a bit (more or less 62%) faster with regards to texture filtering than the GeForce GTX 470. (explain)

Radeon HD 7850 55040 Mtexels/sec
GeForce GTX 470 33992 Mtexels/sec
Difference: 21048 (62%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon HD 7850 is superior to the GeForce GTX 470, though not by far. (explain)

Radeon HD 7850 27520 Mpixels/sec
GeForce GTX 470 24280 Mpixels/sec
Difference: 3240 (13%)

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 470

Amazon.com

Check prices at:

Radeon HD 7850

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 470 Radeon HD 7850
Manufacturer nVidia AMD
Year March 2010 March 2012
Code Name GF100 Pitcairn Pro
Memory 1280 MB 2048 MB
Core Speed 607 MHz 860 MHz
Memory Speed 3348 MHz 4800 MHz
Power (Max TDP) 215 watts 130 watts
Bandwidth 133920 MB/sec 153600 MB/sec
Texel Rate 33992 Mtexels/sec 55040 Mtexels/sec
Pixel Rate 24280 Mpixels/sec 27520 Mpixels/sec
Unified Shaders 448 1024
Texture Mapping Units 56 64
Render Output Units 40 32
Bus Type GDDR5 GDDR5
Bus Width 320-bit 256-bit
Fab Process 40 nm 28 nm
Transistors 3000 million 2800 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.1
OpenGL Version OpenGL 4.1 OpenGL 4.2

Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in MB per second) that can be transferred over the external memory interface in a second. It is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

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GeForce GTX 470

Amazon.com

Check prices at:

Radeon HD 7850

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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