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GeForce GTX 470 vs Radeon HD 7850

Intro

The GeForce GTX 470 features a core clock frequency of 607 MHz and a GDDR5 memory speed of 837 MHz. It also features a 320-bit memory bus, and uses a 40 nm design. It features 448 SPUs, 56 Texture Address Units, and 40 Raster Operation Units.

Compare all that to the Radeon HD 7850, which features a core clock speed of 860 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 is comprised of 1024 SPUs, 64 TAUs, and 32 Raster Operation 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

Performance-wise, the Radeon HD 7850 should in theory be a little 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 should be quite a bit (approximately 62%) faster with regards to AF 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 a high resolution is important to you, then the Radeon HD 7850 is superior to the GeForce GTX 470, not by a very large margin though. (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: Bandwidth is the largest amount of data (in units of megabytes per second) that can be transferred past the external memory interface in one second. It is calculated by multiplying the interface width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better 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 are applied per second. This is worked out by multiplying the total number of 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 processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max 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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