GPU Comparison
RADEON
AMD Radeon RX 640 OEM
CORE STATE
Polaris 23
VRAM
4 GB
CLOCK SPEED
—
TDP
50 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2020
VS
GEFORCE
GeForce GTX 950 Low Power
CORE STATE
GM206
VRAM
2 GB
CLOCK SPEED
1190 MHz
TDP
75 W
BUS WIDTH
128 bit
ARCHITECTURE
Maxwell 2.0
PROCESS
28 nm
LAUNCH DATE
2016
DETAILED SPECIFICATIONS
SPECIFICATION
RX 640 OEM
GTX 950 Low Power
Core Specs
Shading Units
640
768
+20.0%
Shaders
640
768
+20.0%
TMUs
40
48
+20.0%
ROPs
16
32
+100.0%
Compute Units
10
—
Clocks
Base Clock
—
1026 MHz
Boost Clock
—
1190 MHz
GPU Clock
1295 MHz
—
Memory Clock
1500 MHz
6 Gbps effective
1653 MHz
6.6 Gbps effective
Memory
Memory Size
4 GB
2 GB
VRAM (MB)
4,096
2,048
-50.0%
Memory Type
GDDR5
GDDR5
Memory Bus
128 bit
128 bit
Bandwidth
96.00 GB/s
105.8 GB/s
Cache
L1 Cache
16 KB (per CU)
48 KB (per SMM)
L2 Cache
512 KB
1024 KB
Performance
Pixel Rate
20.72 GPixel/s
38.08 GPixel/s
Texture Rate
51.80 GTexel/s
57.12 GTexel/s
FP32 (TFLOPS)
1.658 TFLOPS
1.828 TFLOPS
FP64 (TFLOPS)
103.6 GFLOPS (1:16)
57.12 GFLOPS (1:32)
FP16 (TFLOPS)
1.658 TFLOPS (1:1)
—
Power
TDP
50 W
75 W
TDP (W)
50
75
+50.0%
Suggested PSU
250 W
250 W
Power Connectors
None
None
Architecture
Architecture
GCN 4.0
Maxwell 2.0
GPU Name
Polaris 23
GM206
Generation
Polaris
(RX 600)
GeForce 900
Process Size
14 nm
28 nm
Transistors
2,200 million
2,940 million
Die Size
103 mm²
228 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
12.9M / mm²
API Support
DirectX
12 (12_0)
12 (12_1)
OpenGL
4.6
4.6
Vulkan
1.3
1.4
OpenCL
2.1
3.0
CUDA
—
5.2
Shader Model
6.7
6.8
Physical
Slot Width
Single-slot
Dual-slot
Length
—
202 mm
8 inches
Outputs
1x DisplayPort 1.4a2x mini-DisplayPort 1.4a
1x DVI1x HDMI 2.03x DisplayPort 1.2
Bus Interface
PCIe 3.0 x8
PCIe 3.0 x16
Other
Launch Price
—
159 USD
Production
End-of-life
End-of-life
Predecessor
Polaris
GeForce 700
Successor
Vega
GeForce 10