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 GT 635 OEM
CORE STATE
GK208
VRAM
1024 MB
CLOCK SPEED
—
TDP
35 W
BUS WIDTH
64 bit
ARCHITECTURE
Kepler 2.0
PROCESS
28 nm
LAUNCH DATE
2013
DETAILED SPECIFICATIONS
SPECIFICATION
RX 640 OEM
GT 635 OEM
Core Specs
Shading Units
640
384
-40.0%
Shaders
640
384
-40.0%
TMUs
40
32
-20.0%
ROPs
16
8
-50.0%
Compute Units
10
—
Clocks
GPU Clock
1295 MHz
967 MHz
Memory Clock
1500 MHz
6 Gbps effective
900 MHz
1800 Mbps effective
Memory
Memory Size
4 GB
1024 MB
VRAM (MB)
4,096
1,024
-75.0%
Memory Type
GDDR5
DDR3
Memory Bus
128 bit
64 bit
Bandwidth
96.00 GB/s
14.40 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per SMX)
L2 Cache
512 KB
512 KB
Performance
Pixel Rate
20.72 GPixel/s
7.736 GPixel/s
Texture Rate
51.80 GTexel/s
30.94 GTexel/s
FP32 (TFLOPS)
1.658 TFLOPS
742.7 GFLOPS
FP64 (TFLOPS)
103.6 GFLOPS (1:16)
30.94 GFLOPS (1:24)
FP16 (TFLOPS)
1.658 TFLOPS (1:1)
—
Power
TDP
50 W
35 W
TDP (W)
50
35
-30.0%
Suggested PSU
250 W
200 W
Power Connectors
None
None
Architecture
Architecture
GCN 4.0
Kepler 2.0
GPU Name
Polaris 23
GK208
Generation
Polaris
(RX 600)
GeForce 600
Process Size
14 nm
28 nm
Transistors
2,200 million
1,020 million
Die Size
103 mm²
87 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
11.7M / 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
—
3.5
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
1x DVI1x HDMI 1.4a1x VGA
Bus Interface
PCIe 3.0 x8
PCIe 3.0 x8
Other
Production
End-of-life
End-of-life
Predecessor
Polaris
GeForce 500
Successor
Vega
GeForce 700