Tesla C870 vs ATI FireGL V7700

Primary details

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

Place in the ranking	not rated	not rated
Place by popularity	not in top-100	not in top-100
Architecture	TeraScale (2005−2013)	Tesla (2006−2010)
GPU code name	RV670	G80
Market segment	Workstation	Workstation
Release date	19 November 2007 (18 years ago)	2 May 2007 (18 years ago)
Launch price (MSRP)	$899	$1,499

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	320	128
Core clock speed	777 MHz	600 MHz
Number of transistors	666 million	681 million
Manufacturing process technology	55 nm	90 nm
Power consumption (TDP)	no data	171 Watt
Texture fill rate	12.43	38.40
Floating-point processing power	0.4973 TFLOPS	0.3456 TFLOPS
ROPs	16	24
TMUs	16	32
L2 Cache	256 KB	96 KB

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).

Interface	PCIe 2.0 x16	PCIe 1.0 x16
Length	254 mm	no data
Width	2-slot	2-slot
Supplementary power connectors	1x 6-pin	2x 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	GDDR4	GDDR3
Maximum RAM amount	512 MB	1536 MB
Memory bus width	256 Bit	384 Bit
Memory clock speed	1126 MHz	800 MHz
Memory bandwidth	72.06 GB/s	76.8 GB/s

Connectivity and outputs

This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.

Display Connectors

1x DVI, 1x DisplayPort, 1x S-Video

No outputs

API and SDK support

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX	10.1 (10_1)	11.1 (10_0)
Shader Model	4.1	4.0
OpenGL	3.3	3.3
OpenCL	N/A	1.1
Vulkan	N/A	N/A
CUDA	-	+

Pros & cons summary

---

Recency	19 November 2007	2 May 2007
Maximum RAM amount	512 MB	1536 MB
Chip lithography	55 nm	90 nm