VIA S3G UniChrome Pro vs ATI Radeon HD 4870

Primary details

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

Place in the ranking	768	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.27	no data
Power efficiency	1.68	no data
Architecture	TeraScale (2005−2013)	no data
GPU code name	RV770	Zoetrope
Market segment	Desktop	Laptop
Release date	25 June 2008 (17 years ago)	1 July 2004 (21 years ago)
Launch price (MSRP)	$299	no data

Cost-effectiveness evaluation

The higher the performance-to-price ratio, the better. We use the manufacturer's recommended prices for comparison.

Performance to price scatter graph

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	800	3
Core clock speed	750 MHz	2 MHz
Number of transistors	956 million	no data
Manufacturing process technology	55 nm	no data
Power consumption (TDP)	150 Watt	no data
Texture fill rate	30.00	no data
Floating-point processing power	1.2 TFLOPS	no data
ROPs	16	no data
TMUs	40	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 2.0 x16	no data
Length	250 mm	no data
Width	2-slot	no data
Supplementary power connectors	2x 6-pin	no data

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	no data
Maximum RAM amount	1 GB	no data
Memory bus width	256 Bit	no data
Memory clock speed	900 MHz	no data
Memory bandwidth	115.2 GB/s	no data
Shared memory	-	+

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

2x DVI, 1x S-Video

no data

API and SDK compatibility

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

DirectX	10.1 (10_1)	no data
Shader Model	4.1	no data
OpenGL	3.3	no data
OpenCL	1.1	no data
Vulkan	N/A	-

Pros & cons summary

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Recency

25 June 2008

1 July 2004

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