UHD Graphics 770 vs ATI Radeon HD 2900 XTX

Primary details

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

Place in the ranking	not rated	658
Place by popularity	not in top-100	not in top-100
Power efficiency	no data	29.40
Architecture	TeraScale (2005−2013)	Generation 12.2 (2022−2023)
GPU code name	R600	Raptor Lake GT1
Market segment	Desktop	Desktop
Release date	no data	27 September 2022 (3 years ago)

Detailed specifications

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

Pipelines / CUDA cores	320	256
Core clock speed	743 MHz	300 MHz
Boost clock speed	no data	1650 MHz
Number of transistors	720 million	no data
Manufacturing process technology	80 nm	10 nm
Power consumption (TDP)	240 Watt	15 Watt
Texture fill rate	11.89	26.40
Floating-point processing power	no data	0.8448 TFLOPS
ROPs	16	8
TMUs	16	16

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	Ring Bus
Length	315 mm	no data
Width	2-slot	IGP
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	GDDR3	System Shared
Maximum RAM amount	512 MB	System Shared
Memory bus width	512 Bit	System Shared
Memory clock speed	1656 MBps	System Shared
Memory bandwidth	106.0 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

Motherboard Dependent

API and SDK support

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

DirectX	10.0 (10_0)	12 (12_1)
Shader Model	4.0	6.6
OpenGL	3.3 (full) 4.0 (partial)	4.6
OpenCL	N/A	3.0
Vulkan	N/A	1.3

Pros & cons summary

---

Chip lithography	80 nm	10 nm
Power consumption (TDP)	240 Watt	15 Watt