GeForce 6800 Ultra vs GTX 650

Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in performance ranking	620	not rated
Place by popularity	not in top-100	37
Cost-effectiveness evaluation	0.36	no data
Architecture	Kepler (2012−2018)	Curie (2003−2013)
GPU code name	GK107	NV45
Market segment	Desktop	Desktop
Release date	6 September 2012 (11 years ago)	26 July 2004 (19 years ago)
Launch price (MSRP)	$109	$499
Current price	$207 (1.9x MSRP)	$300 (0.6x MSRP)

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

Detailed specifications

General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	384	no data
CUDA cores	384	no data
Core clock speed	1058 MHz	425 MHz
Number of transistors	1,270 million	222 million
Manufacturing process technology	28 nm	130 nm
Power consumption (TDP)	64 Watt	81 Watt
Texture fill rate	33.9 billion/sec	6.800
Floating-point performance	812.5 gflops	no data

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

Bus support	PCI Express 3.0	no data
Interface	PCIe 3.0 x16	PCIe 1.0 x16
Length	5.70" (14.5 cm)	197 mm
Height	4.38" (11.1 cm)	no data
Width	2-slot	2-slot
Supplementary power connectors	One 6-pin	1x 6-pin

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory type	GDDR5	GDDR3
Maximum RAM amount	2 GB	256 MB
Memory bus width	128-bit GDDR5	256 Bit
Memory clock speed	5.0 GB/s	1100 MHz
Memory bandwidth	80.0 GB/s	35.2 GB/s

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display Connectors	One Dual Link DVI-I, One Dual Link DVI-D, One Mini HDMI	2x DVI, 1x S-Video
Multi monitor support	4 displays	no data
HDMI	+	no data
HDCP	+	no data
Maximum VGA resolution	2048x1536	no data
Audio input for HDMI	Internal	no data

Supported technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

3D Blu-Ray	+	no data
3D Gaming	+	no data
3D Vision	+	no data

API compatibility

List of supported graphics and general-purpose computing APIs, including their specific versions.

DirectX	12 (11_0)	9.0c (9_3)
Shader Model	5.1	3.0
OpenGL	4.3	2.1
OpenCL	1.2	N/A
Vulkan	1.1.126	N/A
CUDA	+	no data

Synthetic benchmark performance

Non-gaming benchmark performance comparison. The combined score is measured on a 0-100 point scale.

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Pros & cons summary

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Recency	6 September 2012	26 July 2004
Cost	$109	$499
Maximum RAM amount	2 GB	256 MB
Chip lithography	28 nm	130 nm
Power consumption (TDP)	64 Watt	81 Watt

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Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

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