Submit Benchmarks!

Submit SSD Benchmark
Submit GPU Benchmark

Compare any two graphics cards:
VS

Radeon HD 4850 512MB vs Radeon HD 6750 1GB

Intro

The Radeon HD 4850 512MB comes with a GPU clock speed of 625 MHz, and the 512 MB of GDDR3 RAM runs at 993 MHz through a 256-bit bus. It also features 800(160x5) Stream Processors, 40 TAUs, and 16 ROPs.

Compare those specifications to the Radeon HD 6750 1GB, which features GPU clock speed of 725 MHz, and 1024 MB of GDDR5 memory running at 1000 MHz through a 128-bit bus. It also is made up of 720 SPUs, 36 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750 1GB 86 Watts
Radeon HD 4850 512MB 110 Watts
Difference: 24 Watts (28%)

Memory Bandwidth

The Radeon HD 6750 1GB should theoretically be just a bit faster than the Radeon HD 4850 512MB overall. (explain)

Radeon HD 6750 1GB 64000 MB/sec
Radeon HD 4850 512MB 63552 MB/sec
Difference: 448 (1%)

Texel Rate

The Radeon HD 6750 1GB will be just a bit (approximately 4%) better at AF than the Radeon HD 4850 512MB. (explain)

Radeon HD 6750 1GB 26100 Mtexels/sec
Radeon HD 4850 512MB 25000 Mtexels/sec
Difference: 1100 (4%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon HD 6750 1GB is superior to the Radeon HD 4850 512MB, though not by far. (explain)

Radeon HD 6750 1GB 11600 Mpixels/sec
Radeon HD 4850 512MB 10000 Mpixels/sec
Difference: 1600 (16%)

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

Radeon HD 4850 512MB

Amazon.com

Check prices at:

Radeon HD 6750 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 Radeon HD 4850 512MB Radeon HD 6750 1GB
Manufacturer AMD AMD
Year Jun 25, 2008 January 2011
Code Name RV770 PRO Juniper Pro
Memory 512 MB 1024 MB
Core Speed 625 MHz 725 MHz
Memory Speed 1986 MHz 4000 MHz
Power (Max TDP) 110 watts 86 watts
Bandwidth 63552 MB/sec 64000 MB/sec
Texel Rate 25000 Mtexels/sec 26100 Mtexels/sec
Pixel Rate 10000 Mpixels/sec 11600 Mpixels/sec
Unified Shaders 800(160x5) 720
Texture Mapping Units 40 36
Render Output Units 16 16
Bus Type GDDR3 GDDR5
Bus Width 256-bit 128-bit
Fab Process 55 nm 40 nm
Transistors 956 million 1040 million
Bus PCIe 2.0 x16 PCIe x16
DirectX Version DirectX 10.1 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Bandwidth is the maximum amount of information (in units of megabytes per second) that can be moved past the external memory interface in one second. It is calculated by multiplying the bus width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster 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 processed per second. This is calculated by multiplying the total texture units by the core speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 4850 512MB

Amazon.com

Check prices at:

Radeon HD 6750 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