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 650 Ti OEM
CORE STATE
GK106
VRAM
2 GB
CLOCK SPEED
—
TDP
110 W
BUS WIDTH
128 bit
ARCHITECTURE
Kepler
PROCESS
28 nm
LAUNCH DATE
2013
DETAILED SPECIFICATIONS
SPECIFICATION
RX 640 OEM
GTX 650 Ti OEM
Core Specs
Shading Units
640
768
+20.0%
Shaders
640
768
+20.0%
TMUs
40
64
+60.0%
ROPs
16
16
0.0%
Compute Units
10
—
Clocks
GPU Clock
1295 MHz
928 MHz
Memory Clock
1500 MHz
6 Gbps effective
1350 MHz
5.4 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
86.40 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per SMX)
L2 Cache
512 KB
256 KB
Performance
Pixel Rate
20.72 GPixel/s
14.85 GPixel/s
Texture Rate
51.80 GTexel/s
59.39 GTexel/s
FP32 (TFLOPS)
1.658 TFLOPS
1,425.4 GFLOPS
FP64 (TFLOPS)
103.6 GFLOPS (1:16)
59.39 GFLOPS (1:24)
FP16 (TFLOPS)
1.658 TFLOPS (1:1)
—
Power
TDP
50 W
110 W
TDP (W)
50
110
+120.0%
Suggested PSU
250 W
300 W
Power Connectors
None
1x 6-pin
Architecture
Architecture
GCN 4.0
Kepler
GPU Name
Polaris 23
GK106
Generation
Polaris
(RX 600)
GeForce 600
Process Size
14 nm
28 nm
Transistors
2,200 million
2,540 million
Die Size
103 mm²
221 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
11.5M / mm²
API Support
DirectX
12 (12_0)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.3
1.2.175
OpenCL
2.1
3.0
CUDA
—
3.0
Shader Model
6.7
6.5 (5.1)
Physical
Slot Width
Single-slot
Single-slot
Length
—
145 mm
5.7 inches
Outputs
1x DisplayPort 1.4a2x mini-DisplayPort 1.4a
2x DVI1x mini-HDMI 1.4a
Bus Interface
PCIe 3.0 x8
PCIe 3.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
Polaris
GeForce 500
Successor
Vega
GeForce 700