Radeon HD 4850 vs HD 4890

Place in performance ranking	661	774
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.65	0.16
Architecture	TeraScale (2005−2013)	Terascale 1 (2008−2010)
GPU code name	RV790	RV770
Market segment	Desktop	Desktop
Release date	2 April 2009 (15 years ago)	25 June 2008 (15 years ago)
Launch price (MSRP)	$249	$199
Current price	$11.97 (0x MSRP)	$138 (0.7x MSRP)

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

ATI HD 4890 has 306% better value for money than ATI HD 4850.

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	800	800
Core clock speed	850 MHz	625 MHz
Number of transistors	959 million	956 million
Manufacturing process technology	55 nm	55 nm
Power consumption (TDP)	190 Watt	110 Watt
Texture fill rate	34.00	25.00
Floating-point performance	1,360.0 gflops	1,000.0 gflops

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 2.0 x16
Length	241 mm	246 mm
Width	2-slot	1-slot
Supplementary power connectors	2x 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	1 GB	512 MB
Memory bus width	256 Bit	256 Bit
Memory clock speed	3900 MHz	993 MHz
Memory bandwidth	124.8 GB/s	63.55 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

2x DVI, 1x S-Video

API compatibility

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

DirectX	10.1 (10_1)	10.1 (10_1)
Shader Model	4.1	4.1
OpenGL	3.3	3.3
OpenCL	1.1	1.1
Vulkan	N/A	N/A

Synthetic benchmark performance

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

Combined synthetic benchmark score

This is our combined benchmark performance score. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

ATI HD 4890 3.89
+46.8%

ATI HD 4850 2.65

HD 4890 outperforms HD 4850 by 47% based on our aggregated benchmark results.

Passmark

This is the most ubiquitous GPU benchmark, part of Passmark PerformanceTest suite. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.

Benchmark coverage: 25%

ATI HD 4890 1507
+46.9%

ATI HD 4850 1026

HD 4890 outperforms HD 4850 by 47% in Passmark.