3Digest: 3D accelerators usability and prospect rating calculations
for the end of the month
|
Usability ratings are calculated by the following formula:
Kuse = (K-no-AAA * K-with-AAA) ^ 0.7 * (Poss ^ 0.3))
/ (Price
)) * 2
where:
K-no-AAA - considers performance without AA+aniso.
K-no-AAA = ((((C10xp^0.6 * C12xp^0.3 * P¡16xp^0.1) *
(HL110xp^0.6 * HL112xp^0.3 * HL116xpxp^0.1)
*
(HL210xp^0.6 * HL212xp^0.3 * HL216xpxp^0.1)
*
(HL310xp^0.6 * HL312xp^0.3 * HL316xpxp^0.1)
*
(TRAOD10xp^0.6 * TRAOD12xp^0.3
* TRAOD16xp^0.1) *
(FC110xp^0.6 * FC112xp^0.3 * FC116xp^0.1)
*
(FC210xp^0.6 * FC212xp^0.3 * FC216xp^0.1)
*
(FC310xp^0.6 * FC312xp^0.3 * FC316xp^0.1)
*
(D310xp^0.6 * D312xp^0.3 * D316xp^0.1)
*
(G110xp^0.6 * G112xp^0.3 * G116xp^0.1)
*
(G210xp^0.6 * G212xp^0.3 * G216xp^0.1)
*
(G310xp^0.6 * G312xp^0.3 * G316xp^0.1)
*
(CR110xp^0.6 * CR112xp^0.3 * CR116xp^0.1)
*
(CR210xp^0.6 * CR212xp^0.3 * CR216xp^0.1))^(1/13)
K-with-AAA - considers performance with AA+aniso. Calculated using
the same formula considering AA+aniso performance values.
The similar calculation (but for 1600x1200 resolution only) indicates
the prospect of a videocard. The formula contains the same indexes
as those used for usability rating calculations, but accelerator's
price isn't considered. So, this rating indicates the capabilities
of the current 3D cards in the current applications and future games.
You can also compare two ratings to see the correspondence of product
prices to their capabilities and features.
Sergey Gajdukov suggested the nonlinear relation calculation method,
which we use now (it's also provided in Excel table). Kuse is calculated
using the similar formula, but each FPS value is not entered as is,
but calculated like shown below:
FPSnew = 50 * (ATAN (FPSold / 30 - 2) - ATAN (-2))
+ FPSold / 100
This relation has the following properties:
- In the 0..20 range FPSnew is much smaller than FPSold ("low
performance penalty")
- In the 20..60 range the following should be true: FPSnew <
FPSold
- In the 60..120 range both values are approximately equal, i.e.
the function is almost linear.
- At x > 120 the function should grow VERY slowly
Legend:
- Kuse - usability rating. The higher it is, the better card's mark
is.
- Kpro - prospect rating. The higher it is, the better card's mark
is.
- HL110xp - Half Life 2 (demo ixbt01) at 1024C...768C...32 (Windows
xP) at max. quality
- HL112xp - Half Life 2 (demo ixbt01) at 1280C...1024C...32 (Windows
xP) at max. quality
- HL116xp - Half Life 2 (demo ixbt01) at 1600C...1200C...32 (Windows
xP) at max. quality
- HL210xp - Half Life 2 (demo ixbt02) at 1024C...768C...32 (Windows
xP) at max. quality
- HL212xp - Half Life 2 (demo ixbt02) at 1280C...1024C...32 (Windows
xP) at max. quality
- HL216xp - Half Life 2 (demo ixbt02) at 1600C...1200C...32 (Windows
xP) at max. quality
- HL310xp - Half Life 2 (demo ixbt03) at 1024C...768C...32 (Windows
xP) at max. quality
- HL312xp - Half Life 2 (demo ixbt03) at 1280C...1024C...32 (Windows
xP) at max. quality
- HL316xp - Half Life 2 (demo ixbt03) at 1600C...1200C...32 (Windows
xP) at max. quality
- TRAOD10xp - Tomb Raider: The Angel of Darkness (Paris5_4 demo)
at 1024x768x32 (Windows xP);
- TRAOD12xp - Tomb Raider: The Angel of Darkness (Paris5_4 demo)
at 1280C...1024C...32 (Windows xP);
- TRAOD16xp - Tomb Raider: The Angel of Darkness (Paris5_4 demo)
at 1600C...1200C...32 (Windows xP);
- FC110xp - FarCry (RESEARCH level) at 1024C...768C...32 (Windows
xP);
- FC112xp - FarCry (RESEARCH level) at 1600C...1200C...32 (Windows
xP);
- FC116xp - FarCry (RESEARCH level) at 1600C...1200C...32 (Windows
xP);
- FC210xp - FarCry (REGULATOR level) at 1024C...768C...32 (Windows
xP);
- FC212xp - FarCry (REGULATOR level) at 1600C...1200C...32 (Windows
xP);
- FC216xp - at FarCry (REGULATOR level) 1600C...1200C...32 (Windows
xP);
- FC310xp - at FarCry (PIER level) at 1024C...768C...32 (Windows
xP);
- FC312xp - FarCry (PIER level) at 1600C...1200C...32 (Windows xP);
- FC316xp - FarCry (PIER level) at 1600C...1200C...32 (Windows xP);
- D310xp - DOOM III (demo ixbt01) at 1024C...768C...32 (Windows
xP);
- D312xp - DOOM III (demo ixbt01) at 1600C...1200C...32 (Windows
xP);
- D316xp - DOOM III (demo ixbt01) at 1600C...1200C...32 (Windows
xP);
- G110xp - 3DMark05 Game1 at 1024C...768C...32 (Windows xP);
- G112xp - 3DMark05 Game1 at 1280x1024x32 (Windows xP);
- G116xp - 3DMark05 Game1 at 1600x1200x32 (Windows xP);
- G210xp - 3DMark05 Game2 at 1024x768x32 (Windows xP);
- G212xp - 3DMark05 Game2 at 1280x1024x32 (Windows xP);
- G216xp - 3DMark05 Game2 at 1600x1200x32 (Windows xP);
- G310xp - 3DMark05 Game3 at 1024x768x32 (Windows xP);
- G312xp - 3DMark05 Game3 at 1280x1024x32 (Windows xP);
- G316xp - 3DMark05 Game3 at 1600x1200x32 (Windows xP);
- CR110xp - Chronicles of Riddick (demo 44) at 1024C...768C...32
(Windows xP);
- CR112xp - Chronicles of Riddick (demo 44) at 1600C...1200C...32
(Windows xP);
- CR116xp - Chronicles of Riddick (demo 44) at 1600C...1200C...32
(Windows xP);
- CR210xp - Chronicles of Riddick (demo ducche) at 1024C...768C...32
(Windows xP);
- CR212xp - Chronicles of Riddick (demo ducche) at 1600C...1200C...32
(Windows xP);
- CR216xp - Chronicles of Riddick (demo ducche) at 1600C...1200C...32
(Windows xP);
- Price - card price for the end of the month taken from price
lists of a number of companies (for an average card);
- Poss - estimated functional potential and quality of a videocard
(see remarks below);
Poss is calculated by the following formula:
Poss = (Driver * AF * TLF * DOT3 * EMBM * CEM * AA *
S3TC * VS * PS * 3dc * DH) ^ (1/11)
Where:
- Driver - estimated drivers quality (including installation difficulties,
etc.) on the 1000-mark scale.
- AF - anisotropic filtering:
- = 700 - available;
- = 0 - n/a;
- TLF - trilinear filtering:
- = 600 - available;
- = 200 - potentially available with resource losses;
- = 150 - approximation;
- = 0 - n/a;
- DOT3 - Bump Mapping DOT3:
- = 600 - available;
- = 0 - n/a;
- EMBM - Bump Mapping EMBM:
- = 600 - available;
- = 0 - n/a;
- CEM - Cubic Environment Mapping:
- = 600 - available;
- = 0 - n/a;
- AA - antialiasing (on condition of minimal gameplay):
- = 700 - MSAA;
- = 1000 - MSAA+SSAA;
- = 0 - n/a;
- S3TC - texture compression:
- = 1000 - RADEON x700/800 - 3Dc;
- = 600 - RADEON 9600/9700/9800/x800, GeForce Fx/6800;
- = 0 - n/a;
- VS - hardware vertex shaders:
- = 1200 - version 3.0;
- = 1000 - version 2.0b;
- = 600 - version 2.0;
- = 0 - n/a;
- PS - hardware pixel shaders:
- = 1200 - version 3.0;
- = 1000 - version 2.0b;
- = 600 - version 2.0;
- = 0 - n/a;
- DH - additional features: dual-monitor output with the support
of DualHead/TwinView/HydraVision technologies, TV-tuner, etc.:
- = 700 - RADEON 9600/9700/9800/x800, GeForce Fx/6800;
- = 0 - n/a;
P.S. We understand that such way of making ratings is not perfect,
therefore we await suggestions and comments from our readers to be
considered in our next 3Digest.
|
|
|
|
|