Radeon RX 640
AMD
G3D Mark
2,172
MSRP
$159
AVG Price
$55
Performance Spectrum - GPU
About G3D Mark
G3D Mark is a standard benchmark that measures graphics performance in real-world gaming scenarios. It simplifies comparing cards from different brands, where higher scores directly correlate with better fps and smoother gaming experiences.
Overview
The Radeon RX 640 is manufactured by AMD. It was released in May 13 2019. It features the GCN 4.0 architecture. The core clock ranges from 1082 MHz to 1218 MHz. It has 640 shading units. The thermal design power (TDP) is 50W. Manufactured using 14 nm process technology. G3D Mark benchmark score: 2,172 points.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (G3D Mark) per dollar. The Radeon RX 640 is positioned at rank #323 in our cost-efficiency ranking, representing a Lower cost-benefit for your build. Components placed above yours deliver better value for money.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Radeon RX 640
FPS Benchmarks
Predicted performance for Radeon RX 640 across popular games. Tested paired with Ryzen 7 7800X3D to isolate GPU performance.
Technical Analysis
Detailed breakdown of Radeon RX 640 specifications and capabilities.
Graphics Performance
The Radeon RX 640 scores 2,172 in the G3D Mark benchmark (the standard measure of rasterization GPU performance), placing it in the Entry Level tier as a Legacy generation graphics card. It is built on the GCN 4.0 (2016−2020) architecture (codename: Polaris 23), manufactured on a 14 nm process— smaller process nodes improve power efficiency and transistor density. It packs 640 shader units (the primary compute units for rendering pixels), 40 TMUs (texture mapping units), and 16 ROPs (render output units that handle final pixel output). Raw FP32 compute power: 1.559 TFLOPS — this measures the theoretical peak floating-point performance. Boost clock reaches 1218 MHz from a base of 1082 MHz.
| Specification | Radeon RX 640 |
|---|---|
| G3D MarkPassMark 3D graphics benchmark score | 2,172 |
| ArchitectureGPU microarchitecture generation | GCN 4.0 (2016−2020) |
| CodenameInternal GPU die codename | Polaris 23 |
| Manufacturing ProcessFabrication node — smaller = more efficient | 14 nm |
| Shader UnitsCore compute units for rendering/compute | 640 |
| TMUsTexture Mapping Units — handle texture sampling | 40 |
| ROPsRender Output Units — final pixel/color blending | 16 |
| Boost ClockMaximum GPU frequency under load | 1218 MHz |
| Base ClockGuaranteed minimum GPU frequency | 1082 MHz |
| Compute (FP32)Peak single-precision floating-point performance | 1.559 TFLOPS |
| Texture Fill RateTextures processed per second | 48.72 GTexel/s |
| PCIe InterfaceCPU↔GPU data link generation | PCIe 3.0 x16 |
| Transistor Count | 2,200 million |
| Performance RankPosition in global GPU performance ranking | #665 |
Video Memory (VRAM)
The Radeon RX 640 is equipped with 4 GB of GDDR5 video memory connected via a 128-bit memory bus, delivering Unknown of bandwidth. Memory operates at 8 Gbps effective speed.
| Specification | Radeon RX 640 |
|---|---|
| VRAM SizeVideo memory capacity — more = better for high-res textures | 4 GB |
| VRAM TypeMemory technology generation | GDDR5 |
| Memory BusWidth of data path — wider = more bandwidth | 128-bit |
| Memory SpeedEffective memory data rate | 8 Gbps |
| BandwidthMaximum data throughput between GPU and VRAM | Unknown |
| L1 Cache | 160 kB |
| L2 Cache | 512 kB |
Advanced Features & APIs
The Radeon RX 640 supports modern upscaling and frame generation technologies: FSR Frame Generation, AMD Fluid Motion Frames, FidelityFX Super Resolution — these can dramatically boost effective FPS by generating intermediate frames or upscaling from lower internal resolution. Graphics API support: DirectX 12 (FL 12_0), Vulkan 1.3, OpenGL 4.6— latest API versions enable the most advanced rendering features like ray tracing and mesh shaders.
| Specification | Radeon RX 640 |
|---|---|
| FSR Frame Generation | ✅ Supported |
| AMD Fluid Motion Frames | ✅ Supported |
| FidelityFX Super Resolution | ✅ Supported |
| DirectXMicrosoft graphics API version | 12 (FL 12_0) |
| VulkanCross-platform graphics API | 1.3 |
| OpenGLLegacy graphics API | 4.6 |
Display & Media
Display outputs: 1x DisplayPort 1.4a, 2x mini-DisplayPort 1.4a — supports up to 6 simultaneous displays. Hardware encoder: VCE 3.4, decoder: UVD 6.3— dedicated hardware for video encoding/decoding accelerates streaming, recording, and video playback. Supported codecs: H.264,H.265/HEVC.
| Specification | Radeon RX 640 |
|---|---|
| DisplayPort 1.4a PortsNumber of DisplayPort 1.4a display connectors | 1x |
| mini-DisplayPort 1.4a PortsNumber of mini-DisplayPort 1.4a display connectors | 2x |
| Max DisplaysMaximum simultaneously connected monitors | 6 |
| Hardware EncoderVideo encoding engine version | VCE 3.4 |
| Hardware DecoderVideo decoding engine version | UVD 6.3 |
| CodecsSupported video compression formats | H.264,H.265/HEVC |
Power & Dimensions
The Radeon RX 640 draws 50 Watt under load (TDP) — a 350W PSU minimum is recommended. Power connector: PCIe-powered. Physical size: , occupying 1 expansion slots— verify your case has clearance before purchasing.
| Specification | Radeon RX 640 |
|---|---|
| TDPPower consumption under load | 50 Watt |
| Recommended PSUMinimum power supply wattage | 350W |
| Power ConnectorRequired PCIe power cable type | PCIe-powered |
| Slot WidthExpansion slots occupied | 1-slot |
Value Analysis
At an average price of $55 (MSRP: $159), the Radeon RX 640 delivers 39 G3D Mark points per dollar. It holds Rank #323 in the cost-benefit ranking — a comprehensive score that weighs raw performance against current market pricing. Overall performance ranking position: #665 among all indexed GPUs.
| Specification | Radeon RX 640 |
|---|---|
| MSRPManufacturer's Suggested Retail Price | $159 |
| Avg Price (30d)Average market price over the last 30 days | $55 |
| Cost-Benefit RankOverall value ranking position | #323 |
| Performance RankPosition in global GPU performance ranking | #665 |
| Release Date | May 13 2019 |
| Release Year | 2019 |
Similar Performance
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Our Recommendation for Radeon RX 640
Suggested pairings based on performance balance
Minimum (Avoid Bottleneck) (12)
Recommended (Balanced) (12)
High-End (Max Performance) (12)
Popular Comparisons
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