Radeon HD 8400 vs GeForce GT 640 Rev. 2
Aggregate performance score
We've compared GeForce GT 640 Rev. 2 and Radeon HD 8400, covering specs and all relevant benchmarks.
640 Rev. 2 outperforms HD 8400 by a whopping 408% based on our aggregate benchmark results.
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 791 | 1247 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.19 | no data |
| Power efficiency | 5.18 | 2.00 |
| Architecture | Kepler 2.0 (2013−2015) | GCN 2.0 (2013−2017) |
| GPU code name | GK208 | Kalindi |
| Market segment | Desktop | Desktop |
| Release date | 29 May 2013 (12 years ago) | 23 November 2013 (12 years ago) |
| Launch price (MSRP) | $89 | no data |
Cost-effectiveness evaluation
The higher the ratio, the better. We use the manufacturer's recommended prices.
Performance to price scatter graph
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 cores | 384 | 128 |
| Core clock speed | 1046 MHz | 400 MHz |
| Number of transistors | 915 million | 1,178 million |
| Manufacturing process technology | 28 nm | 28 nm |
| Power consumption (TDP) | 49 Watt | 25 Watt |
| Texture fill rate | 33.47 | 3.200 |
| Floating-point processing power | 0.8033 TFLOPS | 0.1024 TFLOPS |
| ROPs | 8 | 4 |
| TMUs | 32 | 8 |
| L1 Cache | 32 KB | no data |
| L2 Cache | 128 KB | no data |
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 x8 | IGP |
| Length | 145 mm | no data |
| Width | 1-slot | IGP |
| Supplementary power connectors | None | 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 | GDDR5 | System Shared |
| Maximum RAM amount | 1 GB | System Shared |
| Memory bus width | 64 Bit | System Shared |
| Memory clock speed | 1252 MHz | System Shared |
| Memory bandwidth | 40.06 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 | 1x DVI, 1x HDMI, 1x VGA | No outputs |
| HDMI | + | - |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_0) | 12 (12_0) |
| Shader Model | 5.1 | 6.3 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 2.0 |
| Vulkan | 1.1.126 | 1.2.131 |
| CUDA | 3.5 | - |
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 HD | 50−55
+400%
| 10
−400%
|
Cost per frame, $
| 1080p | 1.78 | no data |
FPS performance in popular games
Full HD
Low
| Cyberpunk 2077 | 2−3
+0%
|
2−3
+0%
|
| Hogwarts Legacy | 5−6
+0%
|
5−6
+0%
|
Full HD
Medium
| Cyberpunk 2077 | 2−3
+0%
|
2−3
+0%
|
| Far Cry 5 | 0−1 | 0−1 |
| Forza Horizon 4 | 5−6
+0%
|
5−6
+0%
|
| Hogwarts Legacy | 5−6
+0%
|
5−6
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 8−9
+0%
|
8−9
+0%
|
| Valorant | 27−30
+0%
|
27−30
+0%
|
Full HD
High
| Counter-Strike: Global Offensive | 19
+0%
|
19
+0%
|
| Cyberpunk 2077 | 2−3
+0%
|
2−3
+0%
|
| Dota 2 | 9
+0%
|
9
+0%
|
| Far Cry 5 | 0−1 | 0−1 |
| Forza Horizon 4 | 5−6
+0%
|
5−6
+0%
|
| Hogwarts Legacy | 5−6
+0%
|
5−6
+0%
|
| Metro Exodus | 1−2
+0%
|
1−2
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 8−9
+0%
|
8−9
+0%
|
| The Witcher 3: Wild Hunt | 6−7
+0%
|
6−7
+0%
|
| Valorant | 27−30
+0%
|
27−30
+0%
|
Full HD
Ultra
| Cyberpunk 2077 | 2−3
+0%
|
2−3
+0%
|
| Dota 2 | 8
+0%
|
8
+0%
|
| Far Cry 5 | 0−1 | 0−1 |
| Forza Horizon 4 | 5−6
+0%
|
5−6
+0%
|
| Hogwarts Legacy | 5−6
+0%
|
5−6
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 8−9
+0%
|
8−9
+0%
|
| The Witcher 3: Wild Hunt | 6−7
+0%
|
6−7
+0%
|
| Valorant | 27−30
+0%
|
27−30
+0%
|
1440p
High
| Counter-Strike 2 | 3−4
+0%
|
3−4
+0%
|
| Counter-Strike: Global Offensive | 3−4
+0%
|
3−4
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 7−8
+0%
|
7−8
+0%
|
1440p
Ultra
| Cyberpunk 2077 | 0−1 | 0−1 |
| Forza Horizon 4 | 2−3
+0%
|
2−3
+0%
|
| Hogwarts Legacy | 0−1 | 0−1 |
| The Witcher 3: Wild Hunt | 2−3
+0%
|
2−3
+0%
|
1440p
Epic
| Fortnite | 1−2
+0%
|
1−2
+0%
|
4K
High
| Grand Theft Auto V | 14−16
+0%
|
14−16
+0%
|
| Valorant | 3−4
+0%
|
3−4
+0%
|
4K
Ultra
| PLAYERUNKNOWN'S BATTLEGROUNDS | 2−3
+0%
|
2−3
+0%
|
4K
Epic
| Fortnite | 2−3
+0%
|
2−3
+0%
|
This is how GT 640 Rev. 2 and HD 8400 compete in popular games:
- GT 640 Rev. 2 is 400% faster in 1080p
All in all, in popular games:
- there's a draw in 33 tests (100%)
Pros & cons summary
| Performance score | 3.30 | 0.65 |
| Recency | 29 May 2013 | 23 November 2013 |
| Power consumption (TDP) | 49 Watt | 25 Watt |
GT 640 Rev. 2 has a 407.7% higher aggregate performance score.
HD 8400, on the other hand, has an age advantage of 5 months, and 96% lower power consumption.
The GeForce GT 640 Rev. 2 is our recommended choice as it beats the Radeon HD 8400 in performance tests.
Other comparisons
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