2006-02-26

GeForce 6 and 7 series variants ... nuts!

UPDATED 2006Feb26 / 2006Mar10 / 2006Mar19 / 2006Apr21 / 2006Sep04

Okay, I'm starting to get tired of all the endless nVidia GeForce 6 and 7 series variants. Even worse is the fact that no enthusiast site seems to want to take the time to just run a few benchmarks to show the differences between each. Now, to be fair, I must note that Tom's Hardware Guide does periodically run it's "VGA Charts" (VIII from December) and AnandTech has its "Price Guides" (Video Cards for February). But it would be nice if these sites would just keep a running list of benchmarks of various cards at just a few titles at the common 1280x1024 or 1280x720 (720p) resolutions that most people are buying these days in either 19" LCDs or larger LCD TVs used for gaming. Maybe just one with FSAA off and another with 4x4 FSAA (or similiar) on. Something that would target 80-90% of consumers buying interests. Until then, I'm going to do my part.

Here is my list of all the nVidia 6 and 7 series by GPU, memory and their clocks. Hopefully this will show the variances between each, which gives you what performance to expect.

Sub-$100 Comparison

Key notes ... (assume PCIe unless noted)
  • GPU for Free: "C51" (chipset integrated NV44) 6100/6150 is basically a "GPU for free" with a new mainboard purchase, but has a dismal 2/1 pixel/vertexpipelines and uses the system's bus. Consider it if you have an older AGP system with a FX5200/5500 series card (see latter comments on AGP). The new crop of "C7x" 7100/7200 chipsets have also been making their debut in notebooks and select desktops.
  • 32/64-bit Not Good: The main performance issue with the NV44 (61x0/6200/6500) and G72 (7100-7300) series is its use of either system memory or 32-bit to 64-bit with optional system memory (TurboCache), even before the limited pixel (2-4) and vertex (1-3) pipelines are considered. Even with higher core and [G]DDR2 memory clocks, the G72 GeForce 7100GS/7300GS (much less a crippled "LE" version) isn't really worth $60-70 when $20-30 more buys you so much more. There doesn't even seem to be a dual-DVI G72 option either, so you can't even count on the G72 as a "$50-60 dual-DVI" option.
  • 128-bit Better: Unless you go for a new chipset-integrated solution, $20-30 more will buy you at least a wider 128-bit bus as you approach $100. The NV43 GeForce 6600LE with 4/3 pixel/vertex is really too crippled. Select NV43 GeForce 6600 8/3 pixel/vertex are now sub-$80 and a better start, even with lower core and memory clocks.
  • Sub-$100 6600 series: The NV43 Geforce 6600 series is now under $100 solidly. You get a 8/3 pixel/vertex with 128-bit memory, DDR/DDR2 with the non-GT flavors, possibly sub-$75, and around 1GHz effective GDDR3 GT versions for under $100. But for not much more than $100, you're basically very close to the G73 GeForce 7600GS and its 12/5 engine and GDDR2 that rivals the GDDR3 on the 6600GT.
  • Don't buy an AGP card: If you're stuck on AGP because you don't already have an Athlon 64 or Core 2 PCIe platform, now's the time to change your mind. The NV40 GeForce 6800 series is even rarer and rarer and the AGP options have not come down in price. All the meanwhile there are nVidia chipset mainboard for $50+, even for LGA-775 Core 2. While a "minimalist" option might be the GeForce 6200 128MB AGP true 128-bit memory (which can't be TurboCache) for $50 or less, although there are a lot of 64-bit or even 32-bit memory versions out there and they are much, much slower. AND BEWARE: let alone a new 6200"LE" with the same, crippled 2/1 engine as the nVidia C51/NV44 chipset GPU you get "for free" with that $50+ mainboard!
  • Unless you have GeForce 6, do not reuse AGP! There has been a lot of commentary on buying newer AMD or Intel mainboards+CPUs and "reusing" old AGP video cards. Unless you have a GeForce 6 series, forget it! Here's a typical relationship of performance between the nForce410/430-integrated GeForce 6100/6150 and older GeForce4 Ti4000 and FX 5000 series cards, using the GeForce 6200 TC (TurboCache PCIe) as a 100% basis at typical 1024x768 resolutions:
    • Newer DirectX 9 / OpenGL applications (with or without AA, morememory for AA):
      • 130% ~ GeForce 6200 (non-TurboCache, AGP or PCIe 128-bit 128MB)
      • 110% ~ GeForce FX 5900/5950 "Ultra"
      • 100% ~ GeForce 6200 TC (TurboCache,64-bit PCIe 64MB, "256MB TC")
      • 95% ~ GeForce FX 5900 or 5800 "Ultra"
      • 75% ~ GeForce FX 5800
      • 65% ~ GeForce 6100/6150 (nForce410/430 chipset integrated)
      • 60% ~ GeForce FX 5700 "Ultra"
      • 50% ~ GeForce FX 5600 "Ultra"
      • 40% ~ GeForce FX 5700 (non-LE)
      • 35% ~ GeForce FX 5600
      • 30% ~ GeForce FX 5200 "Ultra" or GeForce4 Ti4600
      • 25% ~ GeForce FX 5700 "LE", GeForce FX 5500 or GeForce4 Ti4200
      • 20% ~ GeForce FX 5200
    • Older DirectX 7 / OpenGL applications in AA modes, higher image quality ("pretty"):
      • 130% ~ GeForce 6200 (non-TurboCache, AGP or PCIe 128-bit 128MB)
      • 120% ~ GeForce FX 5900/5950 "Ultra"
      • 100% ~ GeForce 6200 TC (TurboCache, 64-bit PCIe 64MB, "256MB TC")
      • 95% ~ GeForce FX 5900 or 5800 "Ultra"
      • 80% ~ GeForce FX 5800
      • 70% ~ GeForce FX 5700 "Ultra"
      • 65% ~ GeForce 6100/6150 (nForce410/430 chipset integrated)
      • 50% ~ GeForce FX 5700 (non-LE) or GeForce FX 5600 "Ultra"
      • 40% ~ GeForce FX 5600
      • 35% ~ GeForce FX 5200 "Ultra" or GeForce4 Ti4600
      • 30% ~ GeForce FX 5700 "LE", GeForce FX 5500 or GeForce4 Ti4200
      • 25% ~ GeForce FX 5200
    • Older DirectX 7 / OpenGL applications in non-AA modes, lower image quality ( "ugly")
      • 100+% ~ Any GeForce 6 series or FX 5800+ model (or 5700 "Ultra")
      • 75% ~ GeForce4 Ti4600
      • 70% ~ GeForce FX 5700 or GeForce4 Ti4200
      • 65% ~ GeForce FX 5600 "Ultra"
      • 50% ~ GeForce FX 5600
      • 40% ~ GeForce FX 5700 "LE", GeForce FX 5200 "Ultra" or GeForce FX 5500
      • 30% ~ GeForce FX 5200
    • Serious Framerate Issues on FX/Ti: Most people have bought GeForce FX 5200, FX 5500 or the FX 5700 "LE" (which is clocked only to 60% of what the "full" FX 5700 is) AGP cards. Putting these cards in the crappiest quality on 3-4 year old DX7/OpenGL titles they are still under 40fps (at least the GeForce4 Ti is a lot better). Flip on a few image quality settings and you'll drop below 20fps (including bombing the GeForce4 Ti too)! And forget running newer titles -- sub 10fps for anything pre-GeForce 6 (except for "costly" GeForce FX 5800+ cards most didn't buy because the Superstores still want an arm and a leg for them)!!! Buying a new NV44 in a C51 chipset integrated video mainboard -- which runs about $50 for Socket-754 or $60 for Socket-939 (and new Socket-AM2/940 should be close) gives you another 50-250% the performance as a FX5200/5500/5700LE, as well as gives you a PCIe upgrade
      path.
$100-200 ComparisonKey notes ... (assume PCIe unless noted)
  • G73 7600GS Now $100+ Value: With the introduction of the GeForce 7600GS, the G73 is now a value option just over $100. The 7600GS has the same 12/5 pixel/texel as its original, older 7600GT brother, with 100MHz shaved off the GPU clock (450MHz), and a little over half in the GS' GDDR2 speed of the GT's GDDR3NV42 6800GS v. G73 7600GT: The G73 and NV40/41/42 are nearly identical in their 12/5 pixel/texel core. But the older NV40/41/42 is still a 256-bit memory bus, whereas the G73 is only a 128-bit. That almost makes up for the slower clocks in the 6800GS than the $20-30 more expensive 7600GT (although a few AnandTech benchmarks show the 7600GT does gets a few more frames -- thanx to Damien McKenna for pointing that out). But the 6800GS clearly does best the $20-30 cheaper 7600GS (not GT) handily.
  • Best Buy -- OEM 7900GS: If you were lucky, you got in on the Woot deal for $139, as the OEM 7900GS is finally reaching the commodity to go retail at around $200. The 7900GS is basically a crippled OEM -- most undoubtably a "reject" 7900GT -- which, prior, had been limited to OEM lots -- with 4 pixel and 1 vertex shut-off. The resulting 20/7 engine 7900GS typically still has up to the full 450MHz clock and anywhere up to the full 1320MHz effective GDDR3 256-bit memory of the 7900GT. This makes it much, much faster than the 12-16/5-6 engine 6800GS/GT or 7600GT, and more competitive with the 7800GTX and 7900GT, assuming the clocks are closer to 450/1320 than 375/1000. Now these are cheap OEM cards, often white boxed with minimal cooling (although the 90ns die of the 7900 helps), so virtually no overclocking and don't expect them to last as long as a full retail card (after all, they were probably 7900GT/GTX GPUs that failed testing). Don't pay over $200 for the card though, as it's better to just pay $30+ more for a full, retail-tested/quality 7900GT.
  • AGP $100+ NV40 now rare: The NV40, the last major, native AGP design by nVidia, still rules the AGP world. Without bridging or other costs (unlike NV43/44), and a full 256-bit memory bus (regardless of only GDDR1 in some cases), it's still viable for AGP. But it's now rare, and if you're buying new, get a PCIe mainboard. If you haven't moved because of CPU costs, that's no longer an excuse as AMD Athlon/Sempron 64 and Intel Pentium/Celeron D processors start at $50, and there are even mainboards/chipsets with DDR support.
$200+ ComparisonKey notes ... (assume PCIe unless noted)
  • Forget G70 7800: The $200+ G70 7800GT is now bested by the 7900GS and $300+ G70 7800GTX has been a non-consideration because ...
  • 7900GT Rules, New 7950GT Option: The G71 7900GT can be had for sub-$250 after rebate (typically around $230). Anoter, newer option is the 7950GT which now makes 512MB standard, while adding another 100MHz GPU clock (and a tad more on the memory as well). Unless you really need another 100MHz more GPU and 300MHz more memory in the 7900GTX, the 7950GT is probably the far better buy.
  • Dual/Quad 7950GX2: Basically two 7900GT units on a single card, this removes the need for SLI to get dual-GPU. Or if you have SLI, you can go quad-GPU, although the point of diminishing returns is really a factor.



The tables ...

NV44 (GeForce 6100/6200/6500)


















































































































































6100 6200 6500
Variant
"

6150

"

Turbo Cache

"
Interface(s) AGP -
NV44A
-
PCIe NV44
(C51)
-
NV44
PCIe SLI - Y
GPU Pixel
Pipelines
2 4
Vertex
Pipelines
1 3
Core Clock
425

475

350

450
Memory Width
sys

64b
32-64b
+sys

64b
Type
GDDR1
GDDR1 /GDDR2
GDDR2
Clock
(Effective)
400
-500
400
-500 /500 -800
500
-700


NV43 (GeForce 6600)


























































































































6600
Variant
GT

"

LE
Interface(s) AGP NV43
(+bdg)
NV43-V
(+bdg)
PCIe NV43
NV43-V
PCIe SLI Y -
GPU Pixel
Pipelines
8 4
Vertex
Pipelines
3
Core Clock
500

300
Memory Width
128b
Type
GDDR3
GDDR1
/GDDR2

DDR
Clock
(Effective)
900
-1000
500
/800
400
-500


NV40/41/42/45 (GeForce 6800)


















































































































































6800
Variant
Ultra Extreme

Ultra

GT

GS

"

LE /XT
Interface(s) AGP
NV40
PCIe - NV40
(+bdg) /NV45

NV42
NV40
(+bdg) /NV41 /NV42
NV41
/NV42
PCIe SLI Y -
GPU Pixel
Pipelines
16 12 8
Vertex
Pipelines
6 5 4
Core Clock
450

400

350
350 A
425 Pe

325
300
-325
Memory Width
256b
Type
GDDR3
DDR
-GDDR1
Clock
(Effective)

1200
1050
-1100

1000
450
-700


G72 (GeForce 7100/7300)






















































































































7100 7300
Variant
GS

GS

LE
Interface(s) AGP -
PCIe
G72
PCIe SLI -
GPU Pixel
Pipelines
4
Vertex
Pipelines
3
Core Clock
350

550

450
Memory Width 64b
+sys
Type
DDR2

GDDR2
DDR
-DDR2
Clock
(Effective)

700?

800
500
-700

G73 (GeForce 7600)












































































































7600
Variant
GT

GS
Interface(s) AGP ?
PCIe
G73
PCIe SLI Y
GPU Pixel
Pipelines
12
Vertex
Pipelines
5
Core Clock 560
-580

400
Memory Width
128b
Type
GDDR3

GDDR2
Clock
(Effective)
1400
-1500
700
-900


G70 (GeForce 7800)




































































































































7800
Variant
GTX 512

GTX

GT

GS
Interface(s) AGP - G70
(+bdg)
PCIe
G70
-
PCIe SLI Y -
GPU Pixel
Pipelines
24 20 16
Vertex
Pipelines
8 7 6
Core Clock
550

430

400

375
Memory Width
256b
Type
GDDR3
Clock
(Effective)

1700

1200

1000

1200


G71 (GeForce 7900/7950)









































































































































7950 7900
Variant
GX2

GT

GTX

GT

GS
Interface(s) AGP -
PCIe
G71
PCIe SLI (2)
Y
Y Y
GPU Pixel
Pipelines
(2)
24
24 20
Vertex
Pipelines
(2)
8
8 7
Core Clock
500

550

650
450
-470
375
-450
Memory Width (2)
256b

256b
Type
GDDR3
Clock
(Effective)
1200
-1320

1400

1600
1200
-1320
1000
-1320

3 comments:

octo said...

On one hand, you have done a good job at attempting to break down all the info on what the differences between the cards actually are.

On the other hand, at the end of the day, "what card should I buy?" is still a very difficult question to answer.

The last time I had to answer it, I found myself buying an AGP-based GeForce 6600GT. I was effectively building a late-model AGP Athlon64 machine, because I didn't want to spend a fortune at the time. (and still thought it was just going to be a secondary "windows gaming machine", before I gave up on Sun desktops and wound up turning it into a primary Linux desktop)

Hopefully it'll last me a couple years before I find myself upgrading again. On the bright side, I still get a lot of enjoyment out of older games.

fuznacious said...

>> NV42 6800GS best?:Has twice the
>> memory interface (256-bit), and
>> 50% more pixel and vertex pipelines
>> (only a slight reduction in clock,
>> but same GDDR3) as the 6600GT, so
>> definitely more "bang-for-the-buck"

OK, now you've done it. After reading this, I had to hit newegg and buy a whole new machine just to try one of these out. Bang-for-the-buck... One of the key phrases that opens my wallet all too easily.

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