ATI Graphics Xpression vs Tesla D870

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	Tesla (2006−2010)	Mach (1992−1997)
GPU code name	G80	Mach64
Market segment	Workstation	Desktop
Release date	2 May 2007 (18 years ago)	1 November 1995 (30 years ago)
Launch price (MSRP)	$7,499	no data

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	128 ×2	no data
Core clock speed	600 MHz	40 MHz
Number of transistors	681 million	1 million
Manufacturing process technology	90 nm	600 nm
Power consumption (TDP)	520 Watt	no data
Texture fill rate	38.40 ×2	no data
Floating-point processing power	0.3456 TFLOPS ×2	no data
ROPs	24 ×2	1
TMUs	32 ×2	no data
L2 Cache	96 KB	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).

Interface	PCIe 1.0 x16	PCI
Width	2-slot	1-slot

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	GDDR3	EDO
Maximum RAM amount	1536 MB ×2	2 MB
Memory bus width	384 Bit ×2	64 Bit
Memory clock speed	800 MHz	40 MHz
Memory bandwidth	76.8 GB/s ×2	320.0 MB/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

No outputs

1x VGA

API and SDK support

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

DirectX	11.1 (10_0)	N/A
Shader Model	4.0	no data
OpenGL	3.3	N/A
OpenCL	1.1	N/A
Vulkan	N/A	N/A
CUDA	+	-

Pros & cons summary

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Recency	2 May 2007	1 November 1995
Maximum RAM amount	1536 MB	2 MB
Chip lithography	90 nm	600 nm

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