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 GTS 450
CORE STATE
GF106
VRAM
1024 MB
CLOCK SPEED
—
TDP
106 W
BUS WIDTH
128 bit
ARCHITECTURE
Fermi
PROCESS
40 nm
LAUNCH DATE
2010
PERFORMANCE BENCHMARKS
geekbench_opencl
DETAILED SPECIFICATIONS
SPECIFICATION
RX 640 OEM
GTS 450
Core Specs
Shading Units
640
192
-70.0%
Shaders
640
192
-70.0%
TMUs
40
32
-20.0%
ROPs
16
16
0.0%
Compute Units
10
—
SM Count
—
4
Clocks
GPU Clock
1295 MHz
783 MHz
Shader Clock
—
1566 MHz
Memory Clock
1500 MHz
6 Gbps effective
902 MHz
3.6 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
57.73 GB/s
Cache
L1 Cache
16 KB (per CU)
64 KB (per SM)
L2 Cache
512 KB
256 KB
Performance
Pixel Rate
20.72 GPixel/s
6.264 GPixel/s
Texture Rate
51.80 GTexel/s
25.06 GTexel/s
FP32 (TFLOPS)
1.658 TFLOPS
601.3 GFLOPS
FP64 (TFLOPS)
103.6 GFLOPS (1:16)
50.11 GFLOPS (1:12)
FP16 (TFLOPS)
1.658 TFLOPS (1:1)
—
Power
TDP
50 W
106 W
TDP (W)
50
106
+112.0%
Suggested PSU
250 W
300 W
Power Connectors
None
1x 6-pin
Architecture
Architecture
GCN 4.0
Fermi
GPU Name
Polaris 23
GF106
Generation
Polaris
(RX 600)
GeForce 400
Process Size
14 nm
40 nm
Transistors
2,200 million
1,170 million
Die Size
103 mm²
238 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
4.9M / mm²
API Support
DirectX
12 (12_0)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.3
—
OpenCL
2.1
1.1
CUDA
—
2.1
Shader Model
6.7
5.1
Physical
Slot Width
Single-slot
Dual-slot
Length
—
210 mm
8.3 inches
Height
—
111 mm
4.4 inches
Outputs
1x DisplayPort 1.4a2x mini-DisplayPort 1.4a
2x DVI1x mini-HDMI 1.3a
Bus Interface
PCIe 3.0 x8
PCIe 2.0 x16
Other
Launch Price
—
129 USD
Production
End-of-life
End-of-life
Predecessor
Polaris
GeForce 200
Successor
Vega
GeForce 500