Submit Benchmarks!

Submit SSD Benchmark
Submit GPU Benchmark

Compare any two graphics cards:
VS

GeForce GTX 275 vs Radeon HD 7870

Intro

The GeForce GTX 275 makes use of a 55 nm design. nVidia has clocked the core speed at 633 MHz. The GDDR3 RAM runs at a speed of 1134 MHz on this specific model. It features 240 SPUs along with 80 Texture Address Units and 28 ROPs.

Compare those specs to the Radeon HD 7870, which has clock speeds of 1000 MHz on the GPU, and 1200 MHz on the 2048 MB of GDDR5 RAM. It features 1280 SPUs as well as 80 Texture Address Units and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7870 175 Watts
GeForce GTX 275 219 Watts
Difference: 44 Watts (25%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 7870 should be a lot faster than the GeForce GTX 275 overall. (explain)

Radeon HD 7870 153600 MB/sec
GeForce GTX 275 127008 MB/sec
Difference: 26592 (21%)

Texel Rate

The Radeon HD 7870 is quite a bit (about 58%) faster with regards to anisotropic filtering than the GeForce GTX 275. (explain)

Radeon HD 7870 80000 Mtexels/sec
GeForce GTX 275 50640 Mtexels/sec
Difference: 29360 (58%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon HD 7870 is a better choice, by far. (explain)

Radeon HD 7870 32000 Mpixels/sec
GeForce GTX 275 17724 Mpixels/sec
Difference: 14276 (81%)

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

Display Prices

Hide Prices

GeForce GTX 275

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.

Specifications

Display Specifications

Hide Specifications

Model GeForce GTX 275 Radeon HD 7870
Manufacturer nVidia AMD
Year April 9, 2009 March 2012
Code Name G200b Pitcairn XT
Memory 896 MB 2048 MB
Core Speed 633 MHz 1000 MHz
Memory Speed 2268 MHz 4800 MHz
Power (Max TDP) 219 watts 175 watts
Bandwidth 127008 MB/sec 153600 MB/sec
Texel Rate 50640 Mtexels/sec 80000 Mtexels/sec
Pixel Rate 17724 Mpixels/sec 32000 Mpixels/sec
Unified Shaders 240 1280
Texture Mapping Units 80 80
Render Output Units 28 32
Bus Type GDDR3 GDDR5
Bus Width 448-bit 256-bit
Fab Process 55 nm 28 nm
Transistors 1400 million 2800 million
Bus PCIe x16 2.0 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 11.1
OpenGL Version OpenGL 3.1 OpenGL 4.2

Memory Bandwidth: Memory bandwidth is the max amount of information (counted in megabytes per second) that can be transported over the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory speed. If it uses DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better 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 per second. This figure is worked out 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 card will be at handling 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 its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 275

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.

Comments

Be the first to leave a comment!

Your email address will not be published. Required fields are marked *


*

WordPress Anti Spam by WP-SpamShield