Radeon HD 8400 vs HD 7950

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Aggregate performance score

We've compared Radeon HD 7950 and Radeon HD 8400, covering specs and all relevant benchmarks.

HD 7950
2012
3 GB GDDR5, 200 Watt
12.36
+1691%

HD 7950 outperforms HD 8400 by a whopping 1691% based on our aggregate benchmark results.

Primary details

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

Place in the ranking4021176
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation2.47no data
Power efficiency4.241.89
ArchitectureGCN 1.0 (2011−2020)GCN 2.0 (2013−2017)
GPU code nameTahitiKalindi
Market segmentDesktopDesktop
Designreferenceno data
Release date31 January 2012 (12 years ago)23 November 2013 (11 years ago)
Launch price (MSRP)$449 no data

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

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 cores1792128
Compute units28no data
Core clock speedno data400 MHz
Boost clock speed1250 MHzno data
Number of transistors4,313 million1,178 million
Manufacturing process technology28 nm28 nm
Power consumption (TDP)200 Watt25 Watt
Texture fill rate89.603.200
Floating-point processing power2.867 TFLOPS0.1024 TFLOPS
ROPs324
TMUs1128

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 3.0 x16no data
InterfacePCIe 3.0 x16IGP
Length267 mmno data
Width2-slotIGP
Supplementary power connectors2x 6-pinno 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 typeGDDR5System Shared
Maximum RAM amount3 GBSystem Shared
Memory bus width384 BitSystem Shared
Memory clock speed1250 MHzSystem Shared
Memory bandwidth240 GB/sno data
Shared memory-+

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-DisplayPortNo outputs
Eyefinity+-
Number of Eyefinity displays6no data
HDMI+-

Supported technologies

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

AppAcceleration+-
CrossFire+-
FreeSync+-
PowerTune+-
ZeroCore+-

API compatibility

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

DirectXDirectX® 1112 (12_0)
Shader Model5.16.3
OpenGL4.64.6
OpenCL1.22.0
Vulkan-1.2.131

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 7950 12.36
+1691%
HD 8400 0.69

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 7950 4764
+1698%
HD 8400 265

3DMark Fire Strike Graphics

Fire Strike is a DirectX 11 benchmark for gaming PCs. It features two separate tests displaying a fight between a humanoid and a fiery creature made of lava. Using 1920x1080 resolution, Fire Strike shows off some realistic graphics and is quite taxing on hardware.

HD 7950 7500
+1770%
HD 8400 401

Gaming performance

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

Average FPS across all PC games

Here are the average frames per second in a large set of popular games across different resolutions:

Full HD170−180
+1600%
10
−1600%

Cost per frame, $

1080p2.64no data

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077 3−4
+0%
3−4
+0%

Full HD
Medium Preset

Assassin's Creed Odyssey 4−5
+0%
4−5
+0%
Call of Duty: Modern Warfare 3−4
+0%
3−4
+0%
Cyberpunk 2077 3−4
+0%
3−4
+0%
Far Cry New Dawn 1−2
+0%
1−2
+0%
Hitman 3 5−6
+0%
5−6
+0%
Horizon Zero Dawn 10−12
+0%
10−12
+0%
Red Dead Redemption 2 0−1 0−1
Shadow of the Tomb Raider 6−7
+0%
6−7
+0%
Watch Dogs: Legion 30−33
+0%
30−33
+0%

Full HD
High Preset

Assassin's Creed Odyssey 4−5
+0%
4−5
+0%
Call of Duty: Modern Warfare 3−4
+0%
3−4
+0%
Cyberpunk 2077 3−4
+0%
3−4
+0%
Far Cry New Dawn 1−2
+0%
1−2
+0%
Hitman 3 5−6
+0%
5−6
+0%
Horizon Zero Dawn 10−12
+0%
10−12
+0%
Red Dead Redemption 2 0−1 0−1
Shadow of the Tomb Raider 6−7
+0%
6−7
+0%
The Witcher 3: Wild Hunt 10−11
+0%
10−11
+0%
Watch Dogs: Legion 30−33
+0%
30−33
+0%

Full HD
Ultra Preset

Assassin's Creed Odyssey 4−5
+0%
4−5
+0%
Call of Duty: Modern Warfare 3−4
+0%
3−4
+0%
Cyberpunk 2077 3−4
+0%
3−4
+0%
Hitman 3 5−6
+0%
5−6
+0%
Horizon Zero Dawn 10−12
+0%
10−12
+0%
Shadow of the Tomb Raider 6−7
+0%
6−7
+0%
The Witcher 3: Wild Hunt 10−11
+0%
10−11
+0%
Watch Dogs: Legion 30−33
+0%
30−33
+0%

Full HD
Epic Preset

Red Dead Redemption 2 0−1 0−1

1440p
High Preset

Far Cry New Dawn 1−2
+0%
1−2
+0%

1440p
Ultra Preset

Assassin's Creed Odyssey 0−1 0−1
Cyberpunk 2077 1−2
+0%
1−2
+0%
Far Cry 5 1−2
+0%
1−2
+0%
Hitman 3 6−7
+0%
6−7
+0%
Horizon Zero Dawn 3−4
+0%
3−4
+0%
Watch Dogs: Legion 2−3
+0%
2−3
+0%

1440p
Epic Preset

Red Dead Redemption 2 3−4
+0%
3−4
+0%

4K
High Preset

Far Cry New Dawn 0−1 0−1

4K
Ultra Preset

Assassin's Creed Odyssey 1−2
+0%
1−2
+0%
Assassin's Creed Valhalla 0−1 0−1

4K
Epic Preset

Red Dead Redemption 2 2−3
+0%
2−3
+0%

This is how HD 7950 and HD 8400 compete in popular games:

  • HD 7950 is 1600% faster in 1080p

All in all, in popular games:

  • there's a draw in 35 tests (100%)

Pros & cons summary


Performance score 12.36 0.69
Recency 31 January 2012 23 November 2013
Power consumption (TDP) 200 Watt 25 Watt

HD 7950 has a 1691.3% higher aggregate performance score.

HD 8400, on the other hand, has an age advantage of 1 year, and 700% lower power consumption.

The Radeon HD 7950 is our recommended choice as it beats the Radeon HD 8400 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 7950
Radeon HD 7950
AMD Radeon HD 8400
Radeon HD 8400

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.


4 421 vote

Rate Radeon HD 7950 on a scale of 1 to 5:

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2.8 129 votes

Rate Radeon HD 8400 on a scale of 1 to 5:

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Questions & comments

Here you can ask a question about this comparison, agree or disagree with our judgements, or report an error or mismatch.