Radeon RX 7800 XT vs GeForce 8400 GS
Aggregate performance score
We've compared GeForce 8400 GS and Radeon RX 7800 XT, covering specs and all relevant benchmarks.
7800 XT outperforms 8400 GS by a whopping 14163% 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 | 1347 | 47 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 70.08 |
| Power efficiency | 0.80 | 17.32 |
| Architecture | Tesla (2006−2010) | RDNA 3.0 (2022−2026) |
| GPU code name | G86 | Navi 32 |
| Market segment | Desktop | Desktop |
| Release date | 17 April 2007 (19 years ago) | 25 August 2023 (3 years ago) |
| Launch price (MSRP) | $29.99 | $499 |
Cost-effectiveness evaluation
The higher the ratio, the better. We use the manufacturer's recommended prices.
Performance to price scatter graph
Currently popular graphics cards are shown for comparison.
Detailed specifications
General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Real power consumption of some graphics cards can well exceed their nominal TDP, especially if overclocked.
| Pipelines / CUDA cores | 16 | 3840 |
| Core clock speed | 459 MHz | 1295 MHz |
| Boost clock speed | no data | 2430 MHz |
| Number of transistors | 210 million | 28,100 million |
| Manufacturing process technology | 80 nm | 5 nm |
| Power consumption (TDP) | 40 Watt | 263 Watt |
| Texture fill rate | 3.672 | 583.2 |
| Floating-point processing power | 0.02938 TFLOPS | 37.32 TFLOPS |
| ROPs | 4 | 96 |
| TMUs | 8 | 240 |
| Ray Tracing Cores | no data | 60 |
| L0 Cache | no data | 960 KB |
| L1 Cache | no data | 768 KB |
| L2 Cache | 16 KB | 4 MB |
| L3 Cache | no data | 64 MB |
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 1.0 x16 | PCIe 4.0 x16 |
| Length | 170 mm | 267 mm |
| Width | 1-slot | 2-slot |
| Supplementary power connectors | None | 2x 8-pin |
| SLI options | + | - |
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 | DDR2 | GDDR6 |
| Maximum RAM amount | 256 MB | 16 GB |
| Standard memory config per GPU | 256 MB | no data |
| Memory bus width | 64 Bit | 256 Bit |
| Memory clock speed | 400 MHz | 2438 MHz |
| Memory bandwidth | 6.4 GB/s | 624.1 GB/s |
| Shared memory | no data | - |
| Resizable BAR | - | + |
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 VGA, 1x S-Video | 1x HDMI 2.1a, 3x DisplayPort 2.1 |
| HDMI | - | + |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 11.1 (10_0) | 12 Ultimate (12_2) |
| Shader Model | 4.0 | 6.7 |
| OpenGL | 2.1 | 4.6 |
| OpenCL | 1.1 | 2.2 |
| Vulkan | N/A | 1.3 |
| CUDA | 1.1 | - |
Synthetic benchmarks
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.
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.
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 | 1−2 | 214
+21300%
|
| 1440p | 0−1 | 123 |
| 4K | 0−1 | 72 |
Cost per frame, $
| 1080p | 29.99 | 2.33
+92.2%
|
| 1440p | no data | 4.06 |
| 4K | no data | 6.93 |
- RX 7800 XT has 92% lower cost per frame in 1080p
FPS performance in popular games
Full HD
Low
| Atomic Heart | 324 | 324 |
| Counter-Strike 2 | 351 | 351 |
| Cyberpunk 2077 | 248 | 248 |
| Resident Evil 4 Remake | 272 | 272 |
Full HD
Medium
| Atomic Heart | 243 | 243 |
| Battlefield 5 | 160−170 | 160−170 |
| Counter-Strike 2 | 355 | 355 |
| Cyberpunk 2077 | 196 | 196 |
| Far Cry 5 | 204 | 204 |
| Fortnite | 270−280 | 270−280 |
| Forza Horizon 4 | 278 | 278 |
| PLAYERUNKNOWN'S BATTLEGROUNDS | 170−180 | 170−180 |
| Valorant | 300−350 | 300−350 |
Full HD
High
| Atomic Heart | 145 | 145 |
| Battlefield 5 | 160−170 | 160−170 |
| Counter-Strike 2 | 283 | 283 |
| Counter-Strike: Global Offensive | 270−280 | 270−280 |
| Cyberpunk 2077 | 163 | 163 |
| Far Cry 5 | 196 | 196 |
| Fortnite | 270−280 | 270−280 |
| Forza Horizon 4 | 261 | 261 |
| Grand Theft Auto V | 178 | 178 |
| Metro Exodus | 172 | 172 |
| PLAYERUNKNOWN'S BATTLEGROUNDS | 170−180 | 170−180 |
| The Witcher 3: Wild Hunt | 366 | 366 |
| Valorant | 300−350 | 300−350 |
Full HD
Ultra
| Battlefield 5 | 160−170 | 160−170 |
| Cyberpunk 2077 | 150 | 150 |
| Far Cry 5 | 182 | 182 |
| Forza Horizon 4 | 222 | 222 |
| PLAYERUNKNOWN'S BATTLEGROUNDS | 170−180 | 170−180 |
| The Witcher 3: Wild Hunt | 200 | 200 |
| Valorant | 300−350 | 300−350 |
Full HD
Epic
| Fortnite | 270−280 | 270−280 |
1440p
High
| Counter-Strike 2 | 175 | 175 |
| Counter-Strike: Global Offensive | 400−450 | 400−450 |
| Grand Theft Auto V | 140 | 140 |
| Metro Exodus | 106 | 106 |
| PLAYERUNKNOWN'S BATTLEGROUNDS | 170−180 | 170−180 |
| Valorant | 350−400 | 350−400 |
1440p
Ultra
| Battlefield 5 | 140−150 | 140−150 |
| Cyberpunk 2077 | 99 | 99 |
| Far Cry 5 | 176 | 176 |
| Forza Horizon 4 | 202 | 202 |
| The Witcher 3: Wild Hunt | 147 | 147 |
1440p
Epic
| Fortnite | 150−160 | 150−160 |
4K
High
| Atomic Heart | 50−55 | 50−55 |
| Counter-Strike 2 | 42 | 42 |
| Grand Theft Auto V | 152 | 152 |
| Metro Exodus | 63 | 63 |
| The Witcher 3: Wild Hunt | 118 | 118 |
| Valorant | 300−350 | 300−350 |
4K
Ultra
| Battlefield 5 | 100−110 | 100−110 |
| Counter-Strike 2 | 75−80 | 75−80 |
| Cyberpunk 2077 | 45 | 45 |
| Far Cry 5 | 104 | 104 |
| Forza Horizon 4 | 164 | 164 |
| PLAYERUNKNOWN'S BATTLEGROUNDS | 95−100 | 95−100 |
4K
Epic
| Fortnite | 75−80 | 75−80 |
This is how 8400 GS and RX 7800 XT compete in popular games:
- RX 7800 XT is 21300% faster in 1080p
All in all, in popular games:
- there's a draw in 59 tests (100%)
Pros & cons summary
| Performance score | 0.41 | 58.48 |
| Recency | 17 April 2007 | 25 August 2023 |
| Maximum RAM amount | 256 MB | 16 GB |
| Chip lithography | 80 nm | 5 nm |
| Power consumption (TDP) | 40 Watt | 263 Watt |
8400 GS has 85% lower power consumption.
RX 7800 XT, on the other hand, has a 14163% higher aggregate performance score, an age advantage of 16 years, a 6300% higher maximum VRAM amount, and a 94% more advanced lithography process.
The Radeon RX 7800 XT is our recommended choice as it beats the GeForce 8400 GS in performance tests.
Other comparisons
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
