Radeon RX 6400 vs HD 7850

Aggregate performance score

We've compared Radeon HD 7850 and Radeon RX 6400, covering specs and all relevant benchmarks.

HD 7850
2012
2 GB GDDR5, 130 Watt
10.05

RX 6400 outperforms HD 7850 by an impressive 97% based on our aggregate benchmark results.

Primary details

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

Place in the ranking451279
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation2.9453.99
Power efficiency5.3025.60
ArchitectureGCN 1.0 (2011−2020)RDNA 2.0 (2020−2024)
GPU code namePitcairnNavi 24
Market segmentDesktopDesktop
Designreferenceno data
Release date5 March 2012 (12 years ago)19 January 2022 (2 years ago)
Launch price (MSRP)$249 $159

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

RX 6400 has 1736% better value for money than HD 7850.

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 cores1024768
Core clock speedno data1923 MHz
Boost clock speed1000 MHz2321 MHz
Number of transistors2,800 million5,400 million
Manufacturing process technology28 nm6 nm
Power consumption (TDP)130 Watt53 Watt
Texture fill rate55.04111.4
Floating-point processing power1.761 TFLOPS3.565 TFLOPS
ROPs3232
TMUs6448
Ray Tracing Coresno data12

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 supportPCIe 2.1 x16no data
InterfacePCIe 3.0 x16PCIe 4.0 x4
Length210 mmno data
Width2-slot1-slot
Supplementary power connectors1x 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 typeGDDR5GDDR6
Maximum RAM amount2 GB4 GB
Memory bus width256 Bit64 Bit
Memory clock speed1200 MHz2000 MHz
Memory bandwidth153.6 GB/s128.0 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 Connectors1x DVI, 1x HDMI, 2x mini-DisplayPort1x HDMI 2.1, 1x DisplayPort 1.4a
Eyefinity+-
HDMI++

Supported technologies

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

CrossFire+-
FreeSync+-

API compatibility

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

DirectX1212 Ultimate (12_2)
Shader Model5.16.7
OpenGL4.64.6
OpenCL1.22.2
Vulkan+1.3

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.

HD 7850 10.05
RX 6400 19.79
+96.9%

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.

HD 7850 3871
RX 6400 7626
+97%

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 10.05 19.79
Recency 5 March 2012 19 January 2022
Maximum RAM amount 2 GB 4 GB
Chip lithography 28 nm 6 nm
Power consumption (TDP) 130 Watt 53 Watt

RX 6400 has a 96.9% higher aggregate performance score, an age advantage of 9 years, a 100% higher maximum VRAM amount, a 366.7% more advanced lithography process, and 145.3% lower power consumption.

The Radeon RX 6400 is our recommended choice as it beats the Radeon HD 7850 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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AMD Radeon HD 7850
Radeon HD 7850
AMD Radeon RX 6400
Radeon RX 6400

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.


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Questions & comments

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