Radeon RX 640 vs GeForce 6600 GT
Aggregate performance score
We've compared GeForce 6600 GT with Radeon RX 640, including specs and performance data.
RX 640 outperforms 6600 GT by a whopping 1359% based on our aggregate benchmark results.
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 1276 | 615 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | no data | 7.43 |
| Architecture | Curie (2003−2013) | GCN 4.0 (2016−2020) |
| GPU code name | NV43 A2 | Polaris 23 |
| Market segment | Desktop | Laptop |
| Release date | 12 August 2004 (20 years ago) | 13 May 2019 (5 years ago) |
| Launch price (MSRP) | $64.95 | 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 cores | no data | 640 |
| Core clock speed | 500 MHz | 1082 MHz |
| Boost clock speed | no data | 1218 MHz |
| Number of transistors | 146 million | 2,200 million |
| Manufacturing process technology | 110 nm | 14 nm |
| Power consumption (TDP) | no data | 50 Watt |
| Texture fill rate | 4.000 | 48.72 |
| Floating-point processing power | no data | 1.559 TFLOPS |
| ROPs | 4 | 16 |
| TMUs | 8 | 40 |
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).
| Laptop size | no data | large |
| Interface | PCIe 1.0 x16 | PCIe 3.0 x8 |
| Width | 1-slot | no data |
| Supplementary power connectors | None | None |
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 | GDDR3 | GDDR5 |
| Maximum RAM amount | 128 MB | 2 GB |
| Memory bus width | 128 Bit | 64 Bit |
| Memory clock speed | 500 MHz | 1500 MHz |
| Memory bandwidth | 16 GB/s | 48 GB/s |
| 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 Connectors | 1x DVI, 1x VGA, 1x S-Video | No outputs |
Supported technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| FreeSync | - | + |
API compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 9.0c (9_3) | 12 (12_0) |
| Shader Model | 3.0 | 6.4 |
| OpenGL | 2.1 | 4.6 |
| OpenCL | N/A | 2.0 |
| Vulkan | N/A | 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.
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
−2500%
| 26
+2500%
|
Cost per frame, $
| 1080p | 64.95 | no data |
FPS performance in popular games
Full HD
Low Preset
| Counter-Strike 2 | 12−14
+0%
|
12−14
+0%
|
| Cyberpunk 2077 | 10−12
+0%
|
10−12
+0%
|
| Elden Ring | 12−14
+0%
|
12−14
+0%
|
Full HD
Medium Preset
| Battlefield 5 | 16−18
+0%
|
16−18
+0%
|
| Counter-Strike 2 | 12−14
+0%
|
12−14
+0%
|
| Cyberpunk 2077 | 10−12
+0%
|
10−12
+0%
|
| Forza Horizon 4 | 21−24
+0%
|
21−24
+0%
|
| Metro Exodus | 17
+0%
|
17
+0%
|
| Red Dead Redemption 2 | 26
+0%
|
26
+0%
|
| Valorant | 14−16
+0%
|
14−16
+0%
|
Full HD
High Preset
| Battlefield 5 | 16−18
+0%
|
16−18
+0%
|
| Counter-Strike 2 | 12−14
+0%
|
12−14
+0%
|
| Cyberpunk 2077 | 10−12
+0%
|
10−12
+0%
|
| Dota 2 | 18
+0%
|
18
+0%
|
| Elden Ring | 12−14
+0%
|
12−14
+0%
|
| Far Cry 5 | 30
+0%
|
30
+0%
|
| Fortnite | 30−35
+0%
|
30−35
+0%
|
| Forza Horizon 4 | 21−24
+0%
|
21−24
+0%
|
| Grand Theft Auto V | 18−20
+0%
|
18−20
+0%
|
| Metro Exodus | 12−14
+0%
|
12−14
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 45−50
+0%
|
45−50
+0%
|
| Red Dead Redemption 2 | 16−18
+0%
|
16−18
+0%
|
| The Witcher 3: Wild Hunt | 16−18
+0%
|
16−18
+0%
|
| Valorant | 14−16
+0%
|
14−16
+0%
|
| World of Tanks | 85−90
+0%
|
85−90
+0%
|
Full HD
Ultra Preset
| Battlefield 5 | 16−18
+0%
|
16−18
+0%
|
| Counter-Strike 2 | 12−14
+0%
|
12−14
+0%
|
| Cyberpunk 2077 | 10−12
+0%
|
10−12
+0%
|
| Dota 2 | 49
+0%
|
49
+0%
|
| Far Cry 5 | 24−27
+0%
|
24−27
+0%
|
| Forza Horizon 4 | 21−24
+0%
|
21−24
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 45−50
+0%
|
45−50
+0%
|
| Valorant | 14−16
+0%
|
14−16
+0%
|
1440p
High Preset
| Dota 2 | 4−5
+0%
|
4−5
+0%
|
| Elden Ring | 6−7
+0%
|
6−7
+0%
|
| Grand Theft Auto V | 5−6
+0%
|
5−6
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 30−35
+0%
|
30−35
+0%
|
| Red Dead Redemption 2 | 4−5
+0%
|
4−5
+0%
|
| World of Tanks | 35−40
+0%
|
35−40
+0%
|
1440p
Ultra Preset
| Battlefield 5 | 8−9
+0%
|
8−9
+0%
|
| Counter-Strike 2 | 9−10
+0%
|
9−10
+0%
|
| Cyberpunk 2077 | 4−5
+0%
|
4−5
+0%
|
| Far Cry 5 | 10−12
+0%
|
10−12
+0%
|
| Forza Horizon 4 | 8−9
+0%
|
8−9
+0%
|
| Metro Exodus | 5−6
+0%
|
5−6
+0%
|
| The Witcher 3: Wild Hunt | 6−7
+0%
|
6−7
+0%
|
| Valorant | 14−16
+0%
|
14−16
+0%
|
4K
High Preset
| Dota 2 | 16−18
+0%
|
16−18
+0%
|
| Elden Ring | 3−4
+0%
|
3−4
+0%
|
| Grand Theft Auto V | 16−18
+0%
|
16−18
+0%
|
| Metro Exodus | 1−2
+0%
|
1−2
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 14−16
+0%
|
14−16
+0%
|
| Red Dead Redemption 2 | 3−4
+0%
|
3−4
+0%
|
| The Witcher 3: Wild Hunt | 16−18
+0%
|
16−18
+0%
|
4K
Ultra Preset
| Battlefield 5 | 4−5
+0%
|
4−5
+0%
|
| Cyberpunk 2077 | 2−3
+0%
|
2−3
+0%
|
| Dota 2 | 16−18
+0%
|
16−18
+0%
|
| Far Cry 5 | 6−7
+0%
|
6−7
+0%
|
| Fortnite | 5−6
+0%
|
5−6
+0%
|
| Forza Horizon 4 | 4−5
+0%
|
4−5
+0%
|
| Valorant | 5−6
+0%
|
5−6
+0%
|
This is how 6600 GT and RX 640 compete in popular games:
- RX 640 is 2500% faster in 1080p
All in all, in popular games:
- there's a draw in 61 test (100%)
Pros & cons summary
| Performance score | 0.37 | 5.40 |
| Recency | 12 August 2004 | 13 May 2019 |
| Maximum RAM amount | 128 MB | 2 GB |
| Chip lithography | 110 nm | 14 nm |
RX 640 has a 1359.5% higher aggregate performance score, an age advantage of 14 years, a 1500% higher maximum VRAM amount, and a 685.7% more advanced lithography process.
The Radeon RX 640 is our recommended choice as it beats the GeForce 6600 GT in performance tests.
Be aware that GeForce 6600 GT is a desktop card while Radeon RX 640 is a notebook one.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
Other comparisons
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