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 8800 GTS 320
CORE STATE
G80
VRAM
320 MB
CLOCK SPEED
—
TDP
143 W
BUS WIDTH
320 bit
ARCHITECTURE
Tesla
PROCESS
90 nm
LAUNCH DATE
2007
DETAILED SPECIFICATIONS
SPECIFICATION
RX 640 OEM
8800 GTS 320
Core Specs
Shading Units
640
96
-85.0%
Shaders
640
96
-85.0%
TMUs
40
24
-40.0%
ROPs
16
20
+25.0%
Compute Units
10
—
SM Count
—
12
Clocks
GPU Clock
1295 MHz
513 MHz
Shader Clock
—
1188 MHz
Memory Clock
1500 MHz
6 Gbps effective
792 MHz
1584 Mbps effective
Memory
Memory Size
4 GB
320 MB
VRAM (MB)
4,096
320
-92.2%
Memory Type
GDDR5
GDDR3
Memory Bus
128 bit
320 bit
Bandwidth
96.00 GB/s
63.36 GB/s
Cache
L1 Cache
16 KB (per CU)
—
L2 Cache
512 KB
80 KB
Performance
Pixel Rate
20.72 GPixel/s
10.26 GPixel/s
Texture Rate
51.80 GTexel/s
24.62 GTexel/s
FP32 (TFLOPS)
1.658 TFLOPS
228.1 GFLOPS
FP64 (TFLOPS)
103.6 GFLOPS (1:16)
—
FP16 (TFLOPS)
1.658 TFLOPS (1:1)
—
Power
TDP
50 W
143 W
TDP (W)
50
143
+186.0%
Suggested PSU
250 W
300 W
Power Connectors
None
1x 6-pin
Architecture
Architecture
GCN 4.0
Tesla
GPU Name
Polaris 23
G80
Generation
Polaris
(RX 600)
GeForce 8
(8800)
Process Size
14 nm
90 nm
Transistors
2,200 million
681 million
Die Size
103 mm²
484 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
1.4M / mm²
API Support
DirectX
12 (12_0)
11.1 (10_0)
OpenGL
4.6
3.3
Vulkan
1.3
—
OpenCL
2.1
1.1 (1.0)
CUDA
—
1.0
Shader Model
6.7
4.0
Physical
Slot Width
Single-slot
Dual-slot
Length
—
267 mm
10.5 inches
Outputs
1x DisplayPort 1.4a2x mini-DisplayPort 1.4a
2x DVI1x S-Video
Bus Interface
PCIe 3.0 x8
PCIe 1.0 x16
Other
Launch Price
—
269 USD
Production
End-of-life
End-of-life
Predecessor
Polaris
GeForce 7 PCIe
Successor
Vega
GeForce 9