Radeon HD 6450 vs ATI HD 4890

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Aggregate performance score

We've compared Radeon HD 4890 and Radeon HD 6450, covering specs and all relevant benchmarks.

ATI HD 4890
2009
1 GB GDDR5, 190 Watt
3.92
+669%

ATI HD 4890 outperforms HD 6450 by a whopping 669% based on our aggregate benchmark results.

Primary details

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

Place in the ranking7011232
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.45no data
Power efficiency1.411.94
ArchitectureTeraScale (2005−2013)TeraScale 2 (2009−2015)
GPU code nameRV790Caicos
Market segmentDesktopDesktop
Designno datareference
Release date2 April 2009 (15 years ago)7 April 2011 (13 years ago)
Launch price (MSRP)$249 $55

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

ATI HD 4890 and HD 6450 have a nearly equal value for money.

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 cores800160
Core clock speed850 MHzno data
Boost clock speedno data750 MHz
Number of transistors959 million370 million
Manufacturing process technology55 nm40 nm
Power consumption (TDP)190 Watt30 Watt
Texture fill rate34.005.000
Floating-point processing power1.36 TFLOPS0.2 TFLOPS
ROPs164
TMUs408

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).

Bus supportno dataPCIe 2.0 x8
InterfacePCIe 2.0 x16PCIe 2.0 x16
Length241 mm168 mm
Width2-slot1-slot
Supplementary power connectors2x 6-pinNone

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 typeGDDR5GDDR5
Maximum RAM amount1 GB1 GB
Memory bus width256 Bit64 Bit
Memory clock speed975 MHz800 MHz
Memory bandwidth124.8 GB/s25.6 GB/s
Memory bandwidthno data8.5-12.8 GB/x (DDR3) or 25.6-28.8 GB/s (GDDR5)

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 Connectors2x DVI, 1x S-Video1x DVI, 1x HDMI, 1x VGA
Eyefinity-+
Number of Eyefinity displaysno data4
HDMI-+
DisplayPort support-+

Supported technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

CrossFire-+

API compatibility

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

DirectX10.1 (10_1)DirectX® 11
Shader Model4.15.0
OpenGL3.34.4
OpenCL1.11.2
VulkanN/A-

Synthetic benchmark performance

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


Combined synthetic benchmark score

This is our combined benchmark 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 3.92
+669%
HD 6450 0.51

Passmark

This is the most ubiquitous GPU benchmark. 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.

ATI HD 4890 1512
+668%
HD 6450 197

Gaming performance

Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.

Pros & cons summary


Performance score 3.92 0.51
Recency 2 April 2009 7 April 2011
Chip lithography 55 nm 40 nm
Power consumption (TDP) 190 Watt 30 Watt

ATI HD 4890 has a 668.6% higher aggregate performance score.

HD 6450, on the other hand, has an age advantage of 2 years, a 37.5% more advanced lithography process, and 533.3% lower power consumption.

The Radeon HD 4890 is our recommended choice as it beats the Radeon HD 6450 in performance tests.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

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ATI Radeon HD 4890
Radeon HD 4890
AMD Radeon HD 6450
Radeon HD 6450

Comparisons with similar GPUs

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


4.1 86 votes

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3 515 votes

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Questions & comments

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