Submit Benchmarks!

Submit SSD Benchmark
Submit GPU Benchmark

Compare any two graphics cards:
VS

GeForce GTX 460 1GB vs Radeon HD 7990

Intro

The GeForce GTX 460 1GB uses a 40 nm design. nVidia has clocked the core speed at 675 MHz. The GDDR5 RAM works at a speed of 900 MHz on this particular card. It features 336 SPUs as well as 56 TAUs and 32 ROPs.

Compare that to the Radeon HD 7990, which features a GPU core clock speed of 950 MHz, and 3072 MB of GDDR5 memory set to run at 1500 MHz through a 384-bit bus. It also is comprised of 2048 SPUs, 128 Texture Address Units, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460 1GB 160 Watts
Radeon HD 7990 375 Watts
Difference: 215 Watts (134%)

Memory Bandwidth

Performance-wise, the Radeon HD 7990 should theoretically be quite a bit better than the GeForce GTX 460 1GB in general. (explain)

Radeon HD 7990 576000 MB/sec
GeForce GTX 460 1GB 115200 MB/sec
Difference: 460800 (400%)

Texel Rate

The Radeon HD 7990 is much (approximately 543%) more effective at AF than the GeForce GTX 460 1GB. (explain)

Radeon HD 7990 243200 Mtexels/sec
GeForce GTX 460 1GB 37800 Mtexels/sec
Difference: 205400 (543%)

Pixel Rate

The Radeon HD 7990 is a lot (about 181%) more effective at anti-aliasing than the GeForce GTX 460 1GB, and capable of handling higher resolutions better. (explain)

Radeon HD 7990 60800 Mpixels/sec
GeForce GTX 460 1GB 21600 Mpixels/sec
Difference: 39200 (181%)

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 460 1GB

Amazon.com

Check prices at:

Radeon HD 7990

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 460 1GB Radeon HD 7990
Manufacturer nVidia AMD
Year July 2010 April 2013
Code Name GF104 Malta
Memory 1024 MB 3072 MB (x2)
Core Speed 675 MHz 950 MHz (x2)
Memory Speed 3600 MHz 6000 MHz (x2)
Power (Max TDP) 160 watts 375 watts
Bandwidth 115200 MB/sec 576000 MB/sec
Texel Rate 37800 Mtexels/sec 243200 Mtexels/sec
Pixel Rate 21600 Mpixels/sec 60800 Mpixels/sec
Unified Shaders 336 2048 (x2)
Texture Mapping Units 56 128 (x2)
Render Output Units 32 32 (x2)
Bus Type GDDR5 GDDR5
Bus Width 256-bit 384-bit (x2)
Fab Process 40 nm 28 nm
Transistors 1950 million 4313 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.1
OpenGL Version OpenGL 4.1 OpenGL 4.3

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

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, 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 most pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

GeForce GTX 460 1GB

Amazon.com

Check prices at:

Radeon HD 7990

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