Submit Benchmarks!

Submit SSD Benchmark
Submit GPU Benchmark

Compare any two graphics cards:
VS

GeForce GTX 295 vs Radeon HD 4870 1GB

Intro

The GeForce GTX 295 features a core clock speed of 576 MHz and a GDDR3 memory frequency of 999 MHz. It also makes use of a 448-bit bus, and makes use of a 55 nm design. It is comprised of 240 SPUs, 80 TAUs, and 28 Raster Operation Units.

Compare those specs to the Radeon HD 4870 1GB, which uses a 55 nm design. AMD has clocked the core speed at 750 MHz. The GDDR5 memory is set to run at a speed of 900 MHz on this particular model. It features 800(160x5) SPUs as well as 40 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4870 1GB 150 Watts
GeForce GTX 295 289 Watts
Difference: 139 Watts (93%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 295 should in theory be much better than the Radeon HD 4870 1GB overall. (explain)

GeForce GTX 295 223776 MB/sec
Radeon HD 4870 1GB 115200 MB/sec
Difference: 108576 (94%)

Texel Rate

The GeForce GTX 295 is a lot (approximately 207%) better at AF than the Radeon HD 4870 1GB. (explain)

GeForce GTX 295 92160 Mtexels/sec
Radeon HD 4870 1GB 30000 Mtexels/sec
Difference: 62160 (207%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 295 is a better choice, by a large margin. (explain)

GeForce GTX 295 32256 Mpixels/sec
Radeon HD 4870 1GB 12000 Mpixels/sec
Difference: 20256 (169%)

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 295

Amazon.com

Check prices at:

Radeon HD 4870 1GB

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 295 Radeon HD 4870 1GB
Manufacturer nVidia AMD
Year January 8, 2009 Jun 25, 2008
Code Name G200b RV770 XT
Memory 896 MB (x2) 1024 MB
Core Speed 576 MHz (x2) 750 MHz
Memory Speed 1998 MHz (x2) 3600 MHz
Power (Max TDP) 289 watts 150 watts
Bandwidth 223776 MB/sec 115200 MB/sec
Texel Rate 92160 Mtexels/sec 30000 Mtexels/sec
Pixel Rate 32256 Mpixels/sec 12000 Mpixels/sec
Unified Shaders 240 (x2) 800(160x5)
Texture Mapping Units 80 (x2) 40
Render Output Units 28 (x2) 16
Bus Type GDDR3 GDDR5
Bus Width 448-bit (x2) 256-bit
Fab Process 55 nm 55 nm
Transistors 1400 million 956 million
Bus PCIe x16 2.0 PCIe 2.0 x16
DirectX Version DirectX 10 DirectX 10.1
OpenGL Version OpenGL 3.1 OpenGL 3.0

Memory Bandwidth: Bandwidth is the max amount of data (counted in MB per second) that can be transferred across the external memory interface in a second. It's worked out by multiplying the interface width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. 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 amount of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the graphics card will be at 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 can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 295

Amazon.com

Check prices at:

Radeon HD 4870 1GB

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