Submit Benchmarks!

Submit SSD Benchmark
Submit GPU Benchmark

Compare any two graphics cards:
VS

GeForce GTX 280 vs Radeon HD 4870 X2

Intro

The GeForce GTX 280 features core clock speeds of 602 MHz on the GPU, and 1107 MHz on the 1024 MB of GDDR3 memory. It features 240 SPUs as well as 80 Texture Address Units and 32 Rasterization Operator Units.

Compare those specs to the Radeon HD 4870 X2, which features a GPU core clock speed of 750 MHz, and 1024 MB of GDDR5 RAM running at 900 MHz through a 256-bit bus. It also is made up of 800(160x5) Stream Processors, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 280 236 Watts
Radeon HD 4870 X2 350 Watts
Difference: 114 Watts (48%)

Memory Bandwidth

Theoretically, the Radeon HD 4870 X2 should be quite a bit faster than the GeForce GTX 280 in general. (explain)

Radeon HD 4870 X2 230400 MB/sec
GeForce GTX 280 141696 MB/sec
Difference: 88704 (63%)

Texel Rate

The Radeon HD 4870 X2 should be much (about 25%) better at texture filtering than the GeForce GTX 280. (explain)

Radeon HD 4870 X2 60000 Mtexels/sec
GeForce GTX 280 48160 Mtexels/sec
Difference: 11840 (25%)

Pixel Rate

The Radeon HD 4870 X2 should be quite a bit (approximately 25%) more effective at full screen anti-aliasing than the GeForce GTX 280, and should be capable of handling higher screen resolutions while still performing well. (explain)

Radeon HD 4870 X2 24000 Mpixels/sec
GeForce GTX 280 19264 Mpixels/sec
Difference: 4736 (25%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Display Prices

Hide Prices

GeForce GTX 280

Amazon.com

Check prices at:

Radeon HD 4870 X2

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 280 Radeon HD 4870 X2
Manufacturer nVidia AMD
Year June 17, 2008 Aug 12, 2008
Code Name G200 R700
Memory 1024 MB 1024 MB (x2)
Core Speed 602 MHz 750 MHz (x2)
Memory Speed 2214 MHz 3600 MHz (x2)
Power (Max TDP) 236 watts 350 watts
Bandwidth 141696 MB/sec 230400 MB/sec
Texel Rate 48160 Mtexels/sec 60000 Mtexels/sec
Pixel Rate 19264 Mpixels/sec 24000 Mpixels/sec
Unified Shaders 240 800(160x5) (x2)
Texture Mapping Units 80 40 (x2)
Render Output Units 32 16 (x2)
Bus Type GDDR3 GDDR5
Bus Width 512-bit 256-bit (x2)
Fab Process 65 nm 55 nm
Transistors 1400 million 956 million
Bus PCIe x16 2.0 PCIe 2.0 x16 (PCIe bridge)
DirectX Version DirectX 10 DirectX 10.1
OpenGL Version OpenGL 3.1 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the largest amount of information (in units of MB per second) that can be transported across the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce GTX 280

Amazon.com

Check prices at:

Radeon HD 4870 X2

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