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 740 OEM
CORE STATE
GK106S
VRAM
1024 MB
CLOCK SPEED
—
TDP
65 W
BUS WIDTH
128 bit
ARCHITECTURE
Kepler
PROCESS
28 nm
LAUNCH DATE
2015
DETAILED SPECIFICATIONS
SPECIFICATION
RX 640 OEM
GT 740 OEM
Core Specs
Shading Units
640
384
-40.0%
Shaders
640
384
-40.0%
TMUs
40
32
-20.0%
ROPs
16
16
0.0%
Compute Units
10
—
Clocks
GPU Clock
1295 MHz
1006 MHz
Memory Clock
1500 MHz
6 Gbps effective
1253 MHz
5 Gbps effective
Memory
Memory Size
4 GB
1024 MB
VRAM (MB)
4,096
1,024
-75.0%
Memory Type
GDDR5
GDDR5
Memory Bus
128 bit
128 bit
Bandwidth
96.00 GB/s
80.19 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
8.048 GPixel/s
Texture Rate
51.80 GTexel/s
32.19 GTexel/s
FP32 (TFLOPS)
1.658 TFLOPS
772.6 GFLOPS
FP64 (TFLOPS)
103.6 GFLOPS (1:16)
32.19 GFLOPS (1:24)
FP16 (TFLOPS)
1.658 TFLOPS (1:1)
—
Power
TDP
50 W
65 W
TDP (W)
50
65
+30.0%
Suggested PSU
250 W
250 W
Power Connectors
None
None
Architecture
Architecture
GCN 4.0
Kepler
GPU Name
Polaris 23
GK106S
Generation
Polaris
(RX 600)
GeForce 700
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
Outputs
1x DisplayPort 1.4a2x mini-DisplayPort 1.4a
No outputs
Bus Interface
PCIe 3.0 x8
PCIe 3.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
Polaris
GeForce 600
Successor
Vega
GeForce 900